{"id":13919,"date":"2024-08-21T07:43:32","date_gmt":"2024-08-21T07:43:32","guid":{"rendered":"https:\/\/www.pickl.ai\/blog\/?post_type=web-story&#038;p=13919"},"modified":"2024-08-21T07:43:34","modified_gmt":"2024-08-21T07:43:34","slug":"types-of-keys-in-dbms","status":"publish","type":"web-story","link":"https:\/\/www.pickl.ai\/blog\/web-stories\/types-of-keys-in-dbms\/","title":{"rendered":"Types of Keys in DBMS"},"content":{"rendered":"<p><html amp=\"\" lang=\"en\"><head><meta charSet=\"utf-8\"\/><meta name=\"viewport\" content=\"width=device-width,minimum-scale=1,initial-scale=1\"\/><script async=\"\" src=\"https:\/\/cdn.ampproject.org\/v0.js\"><\/script><script async=\"\" src=\"https:\/\/cdn.ampproject.org\/v0\/amp-story-1.0.js\" custom-element=\"amp-story\"><\/script><link href=\"https:\/\/fonts.googleapis.com\/css2?display=swap&amp;family=Roboto%3Awght%40400%3B700\" rel=\"stylesheet\"\/><link href=\"https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/07\/image2-1.jpg\" 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srcSet=\"https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/05\/pickl-transorg-LOGO.png 406w\" sizes=\"(min-width: 1024px) 13vh, 28vw\" disable-inline-width=\"true\"><\/amp-img><\/div>\n<\/div>\n<\/div>\n<div style=\"position:absolute;pointer-events:none;left:60.67961%;top:96.60194%;width:27.6699%;height:3.55987%;opacity:1\">\n<div style=\"pointer-events:initial;width:100%;height:100%;display:block;position:absolute;top:0;left:0;z-index:0;border-radius:7.017543859649122% 7.017543859649122% 7.017543859649122% 7.017543859649122% \/ 36.36363636363637% 36.36363636363637% 36.36363636363637% 36.36363636363637%\" class=\"mask\" id=\"el-9400cdc9-343d-482f-9212-a71779fabfe5\">\n<div class=\"fill\" style=\"background-image:linear-gradient(0turn, rgba(249,25,25,0.77) 0%, rgba(249,110,110,0.77) 100%);will-change:transform\"><\/div>\n<\/div>\n<\/div>\n<div style=\"position:absolute;pointer-events:none;left:63.71359%;top:97.08738%;width:22.08738%;height:5.33981%;opacity:1\">\n<div id=\"anim-5333f66e-40ce-4d6b-b05b-2ddb18cf4687\" class=\"animation-wrapper\" style=\"width:100%;height:100%;display:block;position:absolute;top:0;left:0;--initial-opacity:0;--initial-transform:none\">\n<div id=\"anim-227f91ef-5a33-4323-994c-f31448d1fe19\" class=\"animation-wrapper\" style=\"width:100%;height:100%;display:block;position:absolute;top:0;left:0;--initial-opacity:1;--initial-transform:translate3d(0px, 227.94594%, 0)\">\n<div style=\"pointer-events:initial;width:100%;height:100%;display:block;position:absolute;top:0;left:0;z-index:0;border-radius:2.197802197802198% 2.197802197802198% 2.197802197802198% 2.197802197802198% \/ 6.0606060606060606% 6.0606060606060606% 6.0606060606060606% 6.0606060606060606%\" id=\"el-54bb1818-c486-4878-8367-c2f364180a58\"><a href=\"https:\/\/pickl.ai\/blog\/discovering-different-types-of-keys-in-database-management-systems\/\" data-tooltip-icon=\"https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/07\/image1-4.jpg\" data-tooltip-text=\"Discovering Different Types of Keys in Dbms\" target=\"_blank\" rel=\"noreferrer noopener\" style=\"width:100%;height:100%;display:block;position:absolute;top:0;left:0\"><\/p>\n<p class=\"fill text-wrapper\" style=\"white-space:pre-line;overflow-wrap:break-word;word-break:break-word;margin:-0.21634615384615424% 0;font-family:&quot;Roboto&quot;,sans-serif;font-size:0.226537em;line-height:1.2;text-align:center;padding:0;color:#000000\"><span><span style=\"color: #fff\">Read More<\/span><\/p>\n<p><\/span><\/p>\n<p><\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n<div style=\"position:absolute;pointer-events:none;left:15.7767%;top:41.90939%;width:68.20388%;height:16.18123%;opacity:1\">\n<div id=\"anim-546f2295-b1ae-4a08-912c-e5808cf56e09\" class=\"animation-wrapper\" style=\"width:100%;height:100%;display:block;position:absolute;top:0;left:0;--initial-opacity:0;--initial-transform:none\">\n<div id=\"anim-44c14aa8-75c6-428a-b1d8-a134f8ddcd3e\" class=\"animation-wrapper\" style=\"width:100%;height:100%;display:block;position:absolute;top:0;left:0;--initial-opacity:1;--initial-transform:translate3d(0px, -416.22225%, 0)\">\n<div style=\"pointer-events:initial;width:100%;height:100%;display:block;position:absolute;top:0;left:0;z-index:0;border-radius:0.7117437722419928% 0.7117437722419928% 0.7117437722419928% 0.7117437722419928% \/ 2% 2% 2% 2%;background-clip:content-box;background-color:rgba(69,69,69,0.5)\" id=\"el-e2c2e442-e916-43c1-9305-63326223fde3\">\n<h1 id=\"types-of-keys-in-dbms\" class=\"fill text-wrapper\" style=\"white-space:pre-line;overflow-wrap:break-word;word-break:break-word;margin:-0.12577846975088908% 0;font-family:&quot;Roboto&quot;,sans-serif;font-size:0.631068em;line-height:1.19;text-align:center;padding:1.4234875444839856% 2.8469750889679712%;color:#000000\"><span><span style=\"font-weight: 700; color: #fff\">Types of Keys in DBMS<\/span><\/span><\/h1>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p><\/amp-story-grid-layer><\/amp-story-page><amp-story-page id=\"61afb3f4-cba5-454e-8d9b-af6c5a82c6f3\" auto-advance-after=\"7s\"><amp-story-animation layout=\"nodisplay\" trigger=\"visibility\"><script type=\"application\/json\">[{\"selector\":\"#anim-0fbafca1-e00a-4b9f-bba0-2cab547bf134\",\"keyframes\":{\"opacity\":[0,1]},\"delay\":500,\"duration\":900,\"easing\":\"cubic-bezier(0.2, 0.6, 0.0, 1)\",\"fill\":\"both\"}]<\/script><\/amp-story-animation><amp-story-animation layout=\"nodisplay\" trigger=\"visibility\"><script type=\"application\/json\">[{\"selector\":\"#anim-33fabfac-235f-47f8-be0b-9cea71385099\",\"keyframes\":{\"transform\":[\"translate3d(0px, 156.29017%, 0)\",\"translate3d(0px, 0px, 0)\"]},\"delay\":500,\"duration\":900,\"easing\":\"cubic-bezier(0.2, 0.6, 0.0, 1)\",\"fill\":\"both\"}]<\/script><\/amp-story-animation><amp-story-animation layout=\"nodisplay\" trigger=\"visibility\"><script 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layout=\"nodisplay\" trigger=\"visibility\"><script type=\"application\/json\">[{\"selector\":\"#anim-693f7beb-04b9-480e-a0fe-9be76a5e9301\",\"keyframes\":{\"transform\":[\"translate3d(0px, -360.98193%, 0)\",\"translate3d(0px, 0px, 0)\"]},\"delay\":0,\"duration\":600,\"easing\":\"cubic-bezier(0.2, 0.6, 0.0, 1)\",\"fill\":\"both\"}]<\/script><\/amp-story-animation><amp-story-grid-layer template=\"vertical\" aspect-ratio=\"412:618\" class=\"grid-layer\"><\/p>\n<div class=\"page-fullbleed-area\" style=\"background-color:#061728\">\n<div class=\"page-safe-area\">\n<div style=\"position:absolute;pointer-events:none;left:0;top:-9.25926%;width:100%;height:118.51852%;opacity:1\">\n<div style=\"pointer-events:initial;width:100%;height:100%;display:block;position:absolute;top:0;left:0;z-index:0\" class=\"mask\" id=\"el-5fff1e0c-509c-49f0-aea6-b3fc8b00fa15\">\n<div style=\"position:absolute;width:177.77778%;height:100%;left:-38.88889%;top:0%\" data-leaf-element=\"true\"><amp-img layout=\"fill\" src=\"https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/07\/image1-21.jpg\" alt=\"Introduction to DBMS\" srcSet=\"https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/07\/image1-21.jpg 600w,https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/07\/image1-21-550x550.jpg 550w,https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/07\/image1-21-380x380.jpg 380w,https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/07\/image1-21-300x300.jpg 300w,https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/07\/image1-21-255x255.jpg 255w,https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/07\/image1-21-200x200.jpg 200w,https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/07\/image1-21-150x150.jpg 150w,https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/07\/image1-21-110x110.jpg 110w,https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/07\/image1-21-96x96.jpg 96w,https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/07\/image1-21-80x80.jpg 80w\" sizes=\"(min-width: 1024px) 80vh, 178vw\" disable-inline-width=\"true\"><\/amp-img><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p><\/amp-story-grid-layer><amp-story-grid-layer template=\"vertical\" aspect-ratio=\"412:618\" class=\"grid-layer\"><\/p>\n<div class=\"page-fullbleed-area\">\n<div class=\"page-safe-area\">\n<div style=\"position:absolute;pointer-events:none;left:17.96117%;top:48.05825%;width:63.59223%;height:39.15858%;opacity:1\">\n<div id=\"anim-0fbafca1-e00a-4b9f-bba0-2cab547bf134\" class=\"animation-wrapper\" style=\"width:100%;height:100%;display:block;position:absolute;top:0;left:0;--initial-opacity:0;--initial-transform:none\">\n<div id=\"anim-33fabfac-235f-47f8-be0b-9cea71385099\" class=\"animation-wrapper\" style=\"width:100%;height:100%;display:block;position:absolute;top:0;left:0;--initial-opacity:1;--initial-transform:translate3d(0px, 156.29017%, 0)\">\n<div style=\"pointer-events:initial;width:100%;height:100%;display:block;position:absolute;top:0;left:0;z-index:0;border-radius:0.7633587786259541% 0.7633587786259541% 0.7633587786259541% 0.7633587786259541% \/ 0.8264462809917356% 0.8264462809917356% 0.8264462809917356% 0.8264462809917356%;background-clip:content-box;background-color:rgba(69,69,69,0.5)\" id=\"el-6dfa9729-4aad-4b72-8c27-c13966451f88\">\n<h2 id=\"a-super-key-is-any-set-of-attributes-that-uniquely-identifies-a-tuple-in-a-relation-it-can-have-redundant-attributes\" class=\"fill text-wrapper\" style=\"white-space:pre-line;overflow-wrap:break-word;word-break:break-word;margin:-0.15028625954198502% 0;font-family:&quot;Roboto&quot;,sans-serif;font-size:0.453074em;line-height:1.2;text-align:center;padding:1.5267175572519083% 3.0534351145038165%;color:#000000\"><span><span style=\"color: #fff\">A super key is any set of attributes that uniquely identifies a tuple in a relation. It can have redundant attributes.<\/span><\/span><\/h2>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div style=\"position:absolute;pointer-events:none;left:11.77184%;top:96.1165%;width:27.91262%;height:3.8835%;opacity:1\">\n<div style=\"pointer-events:initial;width:100%;height:100%;display:block;position:absolute;top:0;left:0;z-index:0\" class=\"mask\" id=\"el-3fb42485-667e-4a43-94a6-6d6f8038ddea\">\n<div style=\"position:absolute;width:100%;height:100.31801%;left:0%;top:-0.15901%\" data-leaf-element=\"true\"><amp-img layout=\"fill\" src=\"https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/05\/pickl-transorg-LOGO.png\" alt=\"pickl-transorg-LOGO\" srcSet=\"https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/05\/pickl-transorg-LOGO.png 406w\" sizes=\"(min-width: 1024px) 13vh, 28vw\" disable-inline-width=\"true\"><\/amp-img><\/div>\n<\/div>\n<\/div>\n<div style=\"position:absolute;pointer-events:none;left:60.67961%;top:96.60194%;width:27.6699%;height:3.55987%;opacity:1\">\n<div style=\"pointer-events:initial;width:100%;height:100%;display:block;position:absolute;top:0;left:0;z-index:0;border-radius:7.017543859649122% 7.017543859649122% 7.017543859649122% 7.017543859649122% \/ 36.36363636363637% 36.36363636363637% 36.36363636363637% 36.36363636363637%\" class=\"mask\" id=\"el-381b7294-c223-41a4-9ce5-a2ab6dafd2ac\">\n<div class=\"fill\" style=\"background-image:linear-gradient(0turn, rgba(249,25,25,0.77) 0%, rgba(249,110,110,0.77) 100%);will-change:transform\"><\/div>\n<\/div>\n<\/div>\n<div style=\"position:absolute;pointer-events:none;left:63.71359%;top:97.08738%;width:22.08738%;height:5.33981%;opacity:1\">\n<div id=\"anim-99765ee6-a138-475e-8edb-76fdc12ec2a2\" class=\"animation-wrapper\" style=\"width:100%;height:100%;display:block;position:absolute;top:0;left:0;--initial-opacity:0;--initial-transform:none\">\n<div id=\"anim-f8b7a40b-35c4-4515-84c9-8f7d8d95467c\" class=\"animation-wrapper\" style=\"width:100%;height:100%;display:block;position:absolute;top:0;left:0;--initial-opacity:1;--initial-transform:translate3d(0px, 227.94594%, 0)\">\n<div style=\"pointer-events:initial;width:100%;height:100%;display:block;position:absolute;top:0;left:0;z-index:0;border-radius:2.197802197802198% 2.197802197802198% 2.197802197802198% 2.197802197802198% \/ 6.0606060606060606% 6.0606060606060606% 6.0606060606060606% 6.0606060606060606%\" id=\"el-2926314f-e7d3-463b-be63-ea4afa952921\"><a href=\"https:\/\/pickl.ai\/blog\/discovering-different-types-of-keys-in-database-management-systems\/\" data-tooltip-icon=\"https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/07\/image1-4.jpg\" data-tooltip-text=\"Discovering Different Types of Keys in Dbms\" target=\"_blank\" rel=\"noreferrer noopener\" style=\"width:100%;height:100%;display:block;position:absolute;top:0;left:0\"><\/p>\n<p class=\"fill text-wrapper\" style=\"white-space:pre-line;overflow-wrap:break-word;word-break:break-word;margin:-0.21634615384615424% 0;font-family:&quot;Roboto&quot;,sans-serif;font-size:0.226537em;line-height:1.2;text-align:center;padding:0;color:#000000\"><span><span style=\"color: #fff\">Read More<\/span><\/p>\n<p><\/span><\/p>\n<p><\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n<div style=\"position:absolute;pointer-events:none;left:28.15534%;top:8.89968%;width:43.93204%;height:6.95793%;opacity:1\">\n<div id=\"anim-5ad99d96-7a62-4ac2-9904-56746790df88\" class=\"animation-wrapper\" style=\"width:100%;height:100%;display:block;position:absolute;top:0;left:0;--initial-opacity:0;--initial-transform:none\">\n<div id=\"anim-693f7beb-04b9-480e-a0fe-9be76a5e9301\" class=\"animation-wrapper\" style=\"width:100%;height:100%;display:block;position:absolute;top:0;left:0;--initial-opacity:1;--initial-transform:translate3d(0px, -360.98193%, 0)\">\n<div style=\"pointer-events:initial;width:100%;height:100%;display:block;position:absolute;top:0;left:0;z-index:0;border-radius:1.1049723756906076% 1.1049723756906076% 1.1049723756906076% 1.1049723756906076% \/ 4.651162790697675% 4.651162790697675% 4.651162790697675% 4.651162790697675%;background-clip:content-box;background-color:rgba(69,69,69,0.5)\" id=\"el-bf48d1f6-9684-439f-be49-d7776c9e7b5e\">\n<h2 id=\"super-key\" class=\"fill text-wrapper\" style=\"white-space:pre-line;overflow-wrap:break-word;word-break:break-word;margin:-0.1502071823204408% 0;font-family:&quot;Roboto&quot;,sans-serif;font-size:0.485437em;line-height:1.19;text-align:center;padding:2.209944751381215% 4.41988950276243%;color:#000000\"><span><span style=\"font-weight: 700; color: #fff\">Super Key<\/span><\/span><\/h2>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p><\/amp-story-grid-layer><\/amp-story-page><amp-story-page id=\"8e407c3c-6c6a-42c7-8b40-e1909bf7fd34\" 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0.6, 0.0, 1)\",\"fill\":\"both\"}]<\/script><\/amp-story-animation><amp-story-animation layout=\"nodisplay\" trigger=\"visibility\"><script type=\"application\/json\">[{\"selector\":\"#anim-6d7ac6a0-45c3-4e54-8c28-a452c7fb16a0\",\"keyframes\":{\"transform\":[\"translate3d(0px, 227.94594%, 0)\",\"translate3d(0px, 0px, 0)\"]},\"delay\":500,\"duration\":900,\"easing\":\"cubic-bezier(0.2, 0.6, 0.0, 1)\",\"fill\":\"both\"}]<\/script><\/amp-story-animation><amp-story-animation layout=\"nodisplay\" trigger=\"visibility\"><script type=\"application\/json\">[{\"selector\":\"#anim-df457ed6-a990-47dc-8b6c-42a0c7008d75\",\"keyframes\":{\"opacity\":[0,1]},\"delay\":0,\"duration\":600,\"easing\":\"cubic-bezier(0.2, 0.6, 0.0, 1)\",\"fill\":\"both\"}]<\/script><\/amp-story-animation><amp-story-animation layout=\"nodisplay\" trigger=\"visibility\"><script type=\"application\/json\">[{\"selector\":\"#anim-e3baf50c-9ef6-4960-8bed-d48cd86b6033\",\"keyframes\":{\"transform\":[\"translate3d(0px, 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srcSet=\"https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2023\/04\/image3-4.jpg 1000w,https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2023\/04\/image3-4-800x266.jpg 800w,https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2023\/04\/image3-4-768x256.jpg 768w,https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2023\/04\/image3-4-550x183.jpg 550w,https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2023\/04\/image3-4-300x100.jpg 300w,https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2023\/04\/image3-4-255x85.jpg 255w,https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2023\/04\/image3-4-150x50.jpg 150w\" sizes=\"(min-width: 1024px) 240vh, 533vw\" disable-inline-width=\"true\"><\/amp-img><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p><\/amp-story-grid-layer><amp-story-grid-layer template=\"vertical\" aspect-ratio=\"412:618\" class=\"grid-layer\"><\/p>\n<div class=\"page-fullbleed-area\">\n<div class=\"page-safe-area\">\n<div style=\"position:absolute;pointer-events:none;left:14.56311%;top:39.32039%;width:70.38835%;height:50.16181%;opacity:1\">\n<div id=\"anim-b6354d2b-e393-4fe1-a4e0-c6e1e700bc53\" class=\"animation-wrapper\" style=\"width:100%;height:100%;display:block;position:absolute;top:0;left:0;--initial-opacity:0;--initial-transform:none\">\n<div id=\"anim-c0e0c531-6c65-4242-bb6d-5887b0be3cea\" class=\"animation-wrapper\" style=\"width:100%;height:100%;display:block;position:absolute;top:0;left:0;--initial-opacity:1;--initial-transform:translate3d(0px, 139.42653%, 0)\">\n<div style=\"pointer-events:initial;width:100%;height:100%;display:block;position:absolute;top:0;left:0;z-index:0;border-radius:0.6896551724137931% 0.6896551724137931% 0.6896551724137931% 0.6896551724137931% \/ 0.6451612903225806% 0.6451612903225806% 0.6451612903225806% 0.6451612903225806%;background-clip:content-box;background-color:rgba(69,69,69,0.5)\" id=\"el-b010584c-7a01-4654-82e2-c7fd837b0d85\">\n<h2 id=\"a-minimal-super-key-is-called-a-candidate-key-it-uniquely-identifies-a-tuple-without-any-redundant-attributes-a-table-can-have-multiple-candidate-keys\" class=\"fill text-wrapper\" style=\"white-space:pre-line;overflow-wrap:break-word;word-break:break-word;margin:-0.13577586206896575% 0;font-family:&quot;Roboto&quot;,sans-serif;font-size:0.453074em;line-height:1.2;text-align:center;padding:1.3793103448275863% 2.7586206896551726%;color:#000000\"><span><span style=\"color: #fff\">A minimal super key is called a candidate key. It uniquely identifies a tuple without any redundant attributes. A table can have multiple candidate keys.<\/span><\/span><\/h2>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div style=\"position:absolute;pointer-events:none;left:11.77184%;top:96.1165%;width:27.91262%;height:3.8835%;opacity:1\">\n<div style=\"pointer-events:initial;width:100%;height:100%;display:block;position:absolute;top:0;left:0;z-index:0\" class=\"mask\" id=\"el-7dc659dd-27d5-4132-97e4-ccf4ef8cdbb3\">\n<div style=\"position:absolute;width:100%;height:100.31801%;left:0%;top:-0.15901%\" data-leaf-element=\"true\"><amp-img layout=\"fill\" src=\"https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/05\/pickl-transorg-LOGO.png\" alt=\"pickl-transorg-LOGO\" srcSet=\"https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/05\/pickl-transorg-LOGO.png 406w\" sizes=\"(min-width: 1024px) 13vh, 28vw\" disable-inline-width=\"true\"><\/amp-img><\/div>\n<\/div>\n<\/div>\n<div style=\"position:absolute;pointer-events:none;left:60.67961%;top:96.60194%;width:27.6699%;height:3.55987%;opacity:1\">\n<div style=\"pointer-events:initial;width:100%;height:100%;display:block;position:absolute;top:0;left:0;z-index:0;border-radius:7.017543859649122% 7.017543859649122% 7.017543859649122% 7.017543859649122% \/ 36.36363636363637% 36.36363636363637% 36.36363636363637% 36.36363636363637%\" class=\"mask\" id=\"el-b308f222-82fb-4a70-965c-5691467dfde8\">\n<div class=\"fill\" style=\"background-image:linear-gradient(0turn, rgba(249,25,25,0.77) 0%, rgba(249,110,110,0.77) 100%);will-change:transform\"><\/div>\n<\/div>\n<\/div>\n<div style=\"position:absolute;pointer-events:none;left:63.71359%;top:97.08738%;width:22.08738%;height:5.33981%;opacity:1\">\n<div id=\"anim-fb76837d-6cd0-4bd0-80fc-dc99f5c378d7\" class=\"animation-wrapper\" style=\"width:100%;height:100%;display:block;position:absolute;top:0;left:0;--initial-opacity:0;--initial-transform:none\">\n<div id=\"anim-6d7ac6a0-45c3-4e54-8c28-a452c7fb16a0\" class=\"animation-wrapper\" style=\"width:100%;height:100%;display:block;position:absolute;top:0;left:0;--initial-opacity:1;--initial-transform:translate3d(0px, 227.94594%, 0)\">\n<div style=\"pointer-events:initial;width:100%;height:100%;display:block;position:absolute;top:0;left:0;z-index:0;border-radius:2.197802197802198% 2.197802197802198% 2.197802197802198% 2.197802197802198% \/ 6.0606060606060606% 6.0606060606060606% 6.0606060606060606% 6.0606060606060606%\" id=\"el-dc6100a7-bd7d-4a51-b4d8-164afe008cce\"><a href=\"https:\/\/pickl.ai\/blog\/discovering-different-types-of-keys-in-database-management-systems\/\" data-tooltip-icon=\"https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/07\/image1-4.jpg\" data-tooltip-text=\"Discovering Different Types of Keys in Dbms\" target=\"_blank\" rel=\"noreferrer noopener\" style=\"width:100%;height:100%;display:block;position:absolute;top:0;left:0\"><\/p>\n<p class=\"fill text-wrapper\" style=\"white-space:pre-line;overflow-wrap:break-word;word-break:break-word;margin:-0.21634615384615424% 0;font-family:&quot;Roboto&quot;,sans-serif;font-size:0.226537em;line-height:1.2;text-align:center;padding:0;color:#000000\"><span><span style=\"color: #fff\">Read More<\/span><\/p>\n<p><\/span><\/p>\n<p><\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n<div style=\"position:absolute;pointer-events:none;left:28.15534%;top:8.89968%;width:43.93204%;height:12.45955%;opacity:1\">\n<div id=\"anim-df457ed6-a990-47dc-8b6c-42a0c7008d75\" class=\"animation-wrapper\" style=\"width:100%;height:100%;display:block;position:absolute;top:0;left:0;--initial-opacity:0;--initial-transform:none\">\n<div id=\"anim-e3baf50c-9ef6-4960-8bed-d48cd86b6033\" class=\"animation-wrapper\" style=\"width:100%;height:100%;display:block;position:absolute;top:0;left:0;--initial-opacity:1;--initial-transform:translate3d(0px, -245.74314%, 0)\">\n<div style=\"pointer-events:initial;width:100%;height:100%;display:block;position:absolute;top:0;left:0;z-index:0;border-radius:1.1049723756906076% 1.1049723756906076% 1.1049723756906076% 1.1049723756906076% \/ 2.5974025974025974% 2.5974025974025974% 2.5974025974025974% 2.5974025974025974%;background-clip:content-box;background-color:rgba(69,69,69,0.5)\" id=\"el-31614226-1558-4724-9cbf-7c9b366077cc\">\n<h2 id=\"candidate-key\" class=\"fill text-wrapper\" style=\"white-space:pre-line;overflow-wrap:break-word;word-break:break-word;margin:-0.1502071823204408% 0;font-family:&quot;Roboto&quot;,sans-serif;font-size:0.485437em;line-height:1.19;text-align:center;padding:2.209944751381215% 4.41988950276243%;color:#000000\"><span><span style=\"font-weight: 700; color: #fff\">Candidate Key<\/span><\/span><\/h2>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p><\/amp-story-grid-layer><\/amp-story-page><amp-story-page id=\"fa4fd5ae-857b-4865-9333-e6b6959f0fe4\" auto-advance-after=\"7s\"><amp-story-animation layout=\"nodisplay\" trigger=\"visibility\"><script type=\"application\/json\">[{\"selector\":\"#anim-5fc191df-db45-4221-9b83-93007c77074e\",\"keyframes\":{\"opacity\":[0,1]},\"delay\":500,\"duration\":900,\"easing\":\"cubic-bezier(0.2, 0.6, 0.0, 1)\",\"fill\":\"both\"}]<\/script><\/amp-story-animation><amp-story-animation layout=\"nodisplay\" trigger=\"visibility\"><script type=\"application\/json\">[{\"selector\":\"#anim-e2ab64e0-2b56-46c5-aa30-023c0410acbb\",\"keyframes\":{\"transform\":[\"translate3d(0px, 167.58115%, 0)\",\"translate3d(0px, 0px, 0)\"]},\"delay\":500,\"duration\":900,\"easing\":\"cubic-bezier(0.2, 0.6, 0.0, 1)\",\"fill\":\"both\"}]<\/script><\/amp-story-animation><amp-story-animation layout=\"nodisplay\" trigger=\"visibility\"><script type=\"application\/json\">[{\"selector\":\"#anim-8eff9cf6-8ec5-4380-b350-b33bdb913212\",\"keyframes\":{\"opacity\":[0,1]},\"delay\":500,\"duration\":900,\"easing\":\"cubic-bezier(0.2, 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1000w,https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2023\/01\/image2-13-800x266.jpg 800w,https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2023\/01\/image2-13-768x256.jpg 768w,https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2023\/01\/image2-13-550x183.jpg 550w,https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2023\/01\/image2-13-300x100.jpg 300w,https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2023\/01\/image2-13-255x85.jpg 255w,https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2023\/01\/image2-13-150x50.jpg 150w\" sizes=\"(min-width: 1024px) 240vh, 533vw\" disable-inline-width=\"true\"><\/amp-img><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p><\/amp-story-grid-layer><amp-story-grid-layer template=\"vertical\" aspect-ratio=\"412:618\" class=\"grid-layer\"><\/p>\n<div class=\"page-fullbleed-area\">\n<div class=\"page-safe-area\">\n<div style=\"position:absolute;pointer-events:none;left:14.56311%;top:43.3657%;width:70.38835%;height:39.32039%;opacity:1\">\n<div id=\"anim-5fc191df-db45-4221-9b83-93007c77074e\" class=\"animation-wrapper\" style=\"width:100%;height:100%;display:block;position:absolute;top:0;left:0;--initial-opacity:0;--initial-transform:none\">\n<div id=\"anim-e2ab64e0-2b56-46c5-aa30-023c0410acbb\" class=\"animation-wrapper\" style=\"width:100%;height:100%;display:block;position:absolute;top:0;left:0;--initial-opacity:1;--initial-transform:translate3d(0px, 167.58115%, 0)\">\n<div style=\"pointer-events:initial;width:100%;height:100%;display:block;position:absolute;top:0;left:0;z-index:0;border-radius:0.6896551724137931% 0.6896551724137931% 0.6896551724137931% 0.6896551724137931% \/ 0.823045267489712% 0.823045267489712% 0.823045267489712% 0.823045267489712%;background-clip:content-box;background-color:rgba(69,69,69,0.5)\" id=\"el-7c8123a1-41fb-48b6-bba5-dd270f4b642a\">\n<h2 id=\"one-of-the-candidate-keys-is-chosen-as-the-primary-key-to-uniquely-identify-each-row-in-a-table-it-cannot-contain-null-values\" class=\"fill text-wrapper\" style=\"white-space:pre-line;overflow-wrap:break-word;word-break:break-word;margin:-0.13577586206896575% 0;font-family:&quot;Roboto&quot;,sans-serif;font-size:0.453074em;line-height:1.2;text-align:center;padding:1.3793103448275863% 2.7586206896551726%;color:#000000\"><span><span style=\"color: #fff\">One of the candidate keys is chosen as the primary key to uniquely identify each row in a table.<\/span><br \/>\n<span style=\"color: #fff\">It cannot contain null values.<\/span><\/span><\/h2>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div style=\"position:absolute;pointer-events:none;left:11.77184%;top:96.1165%;width:27.91262%;height:3.8835%;opacity:1\">\n<div style=\"pointer-events:initial;width:100%;height:100%;display:block;position:absolute;top:0;left:0;z-index:0\" class=\"mask\" id=\"el-4951adaf-8d2b-4a3b-a683-782d6d19a2e6\">\n<div style=\"position:absolute;width:100%;height:100.31801%;left:0%;top:-0.15901%\" data-leaf-element=\"true\"><amp-img layout=\"fill\" src=\"https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/05\/pickl-transorg-LOGO.png\" alt=\"pickl-transorg-LOGO\" srcSet=\"https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/05\/pickl-transorg-LOGO.png 406w\" sizes=\"(min-width: 1024px) 13vh, 28vw\" disable-inline-width=\"true\"><\/amp-img><\/div>\n<\/div>\n<\/div>\n<div style=\"position:absolute;pointer-events:none;left:60.67961%;top:96.60194%;width:27.6699%;height:3.55987%;opacity:1\">\n<div style=\"pointer-events:initial;width:100%;height:100%;display:block;position:absolute;top:0;left:0;z-index:0;border-radius:7.017543859649122% 7.017543859649122% 7.017543859649122% 7.017543859649122% \/ 36.36363636363637% 36.36363636363637% 36.36363636363637% 36.36363636363637%\" class=\"mask\" id=\"el-4f7c59d3-6542-43f0-81ef-08654a5205a5\">\n<div class=\"fill\" style=\"background-image:linear-gradient(0turn, rgba(249,25,25,0.77) 0%, rgba(249,110,110,0.77) 100%);will-change:transform\"><\/div>\n<\/div>\n<\/div>\n<div style=\"position:absolute;pointer-events:none;left:63.71359%;top:97.08738%;width:22.08738%;height:5.33981%;opacity:1\">\n<div id=\"anim-8eff9cf6-8ec5-4380-b350-b33bdb913212\" class=\"animation-wrapper\" style=\"width:100%;height:100%;display:block;position:absolute;top:0;left:0;--initial-opacity:0;--initial-transform:none\">\n<div id=\"anim-4382b2cd-7246-44eb-ac64-a45e6a6ddc39\" class=\"animation-wrapper\" style=\"width:100%;height:100%;display:block;position:absolute;top:0;left:0;--initial-opacity:1;--initial-transform:translate3d(0px, 227.94594%, 0)\">\n<div style=\"pointer-events:initial;width:100%;height:100%;display:block;position:absolute;top:0;left:0;z-index:0;border-radius:2.197802197802198% 2.197802197802198% 2.197802197802198% 2.197802197802198% \/ 6.0606060606060606% 6.0606060606060606% 6.0606060606060606% 6.0606060606060606%\" id=\"el-6118e00a-7ee2-46d8-9d92-c8b3c1069113\"><a href=\"https:\/\/pickl.ai\/blog\/discovering-different-types-of-keys-in-database-management-systems\/\" data-tooltip-icon=\"https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/07\/image1-4.jpg\" data-tooltip-text=\"Discovering Different Types of Keys in Dbms\" target=\"_blank\" rel=\"noreferrer noopener\" style=\"width:100%;height:100%;display:block;position:absolute;top:0;left:0\"><\/p>\n<p class=\"fill text-wrapper\" style=\"white-space:pre-line;overflow-wrap:break-word;word-break:break-word;margin:-0.21634615384615424% 0;font-family:&quot;Roboto&quot;,sans-serif;font-size:0.226537em;line-height:1.2;text-align:center;padding:0;color:#000000\"><span><span style=\"color: #fff\">Read More<\/span><\/p>\n<p><\/span><\/p>\n<p><\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n<div style=\"position:absolute;pointer-events:none;left:29.61165%;top:8.57605%;width:40.04854%;height:12.78317%;opacity:1\">\n<div id=\"anim-978c8dbf-18d5-4b41-a9f5-f815a739a957\" class=\"animation-wrapper\" style=\"width:100%;height:100%;display:block;position:absolute;top:0;left:0;--initial-opacity:0;--initial-transform:none\">\n<div id=\"anim-a3416d20-bdd2-431c-8965-8fab296c880e\" class=\"animation-wrapper\" style=\"width:100%;height:100%;display:block;position:absolute;top:0;left:0;--initial-opacity:1;--initial-transform:translate3d(0px, -239.52181%, 0)\">\n<div style=\"pointer-events:initial;width:100%;height:100%;display:block;position:absolute;top:0;left:0;z-index:0;border-radius:1.2121212121212122% 1.2121212121212122% 1.2121212121212122% 1.2121212121212122% \/ 2.5316455696202533% 2.5316455696202533% 2.5316455696202533% 2.5316455696202533%;background-clip:content-box;background-color:rgba(69,69,69,0.5)\" id=\"el-fa8f71fe-3c57-49cd-a103-a69c78b77e18\">\n<h2 id=\"primary-key\" class=\"fill text-wrapper\" style=\"white-space:pre-line;overflow-wrap:break-word;word-break:break-word;margin:-0.16477272727272596% 0;font-family:&quot;Roboto&quot;,sans-serif;font-size:0.485437em;line-height:1.19;text-align:center;padding:2.4242424242424243% 4.848484848484849%;color:#000000\"><span><span style=\"font-weight: 700; color: #fff\">Primary Key<\/span><\/span><\/h2>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p><\/amp-story-grid-layer><\/amp-story-page><amp-story-page id=\"1cf2ef22-e61b-4751-929a-79a85703445b\" auto-advance-after=\"7s\"><amp-story-animation layout=\"nodisplay\" trigger=\"visibility\"><script type=\"application\/json\">[{\"selector\":\"#anim-a6bde6c1-bced-4f18-a2b9-ec5463c4bdd9\",\"keyframes\":{\"opacity\":[0,1]},\"delay\":500,\"duration\":900,\"easing\":\"cubic-bezier(0.2, 0.6, 0.0, 1)\",\"fill\":\"both\"}]<\/script><\/amp-story-animation><amp-story-animation layout=\"nodisplay\" trigger=\"visibility\"><script type=\"application\/json\">[{\"selector\":\"#anim-a296a38b-643c-4ee7-8b39-393c97579eed\",\"keyframes\":{\"transform\":[\"translate3d(0px, 155.64701%, 0)\",\"translate3d(0px, 0px, 0)\"]},\"delay\":500,\"duration\":900,\"easing\":\"cubic-bezier(0.2, 0.6, 0.0, 1)\",\"fill\":\"both\"}]<\/script><\/amp-story-animation><amp-story-animation layout=\"nodisplay\" trigger=\"visibility\"><script type=\"application\/json\">[{\"selector\":\"#anim-7b17401a-3cf6-4657-a5fd-1c43aa12e0ae\",\"keyframes\":{\"opacity\":[0,1]},\"delay\":500,\"duration\":900,\"easing\":\"cubic-bezier(0.2, 0.6, 0.0, 1)\",\"fill\":\"both\"}]<\/script><\/amp-story-animation><amp-story-animation layout=\"nodisplay\" trigger=\"visibility\"><script type=\"application\/json\">[{\"selector\":\"#anim-c88e7b47-308f-410b-95d7-5e745bb3e791\",\"keyframes\":{\"transform\":[\"translate3d(0px, 227.94594%, 0)\",\"translate3d(0px, 0px, 0)\"]},\"delay\":500,\"duration\":900,\"easing\":\"cubic-bezier(0.2, 0.6, 0.0, 1)\",\"fill\":\"both\"}]<\/script><\/amp-story-animation><amp-story-animation layout=\"nodisplay\" trigger=\"visibility\"><script type=\"application\/json\">[{\"selector\":\"#anim-352c1386-a530-4fea-b076-ff4dc13675c2\",\"keyframes\":{\"opacity\":[0,1]},\"delay\":0,\"duration\":600,\"easing\":\"cubic-bezier(0.2, 0.6, 0.0, 1)\",\"fill\":\"both\"}]<\/script><\/amp-story-animation><amp-story-animation layout=\"nodisplay\" trigger=\"visibility\"><script type=\"application\/json\">[{\"selector\":\"#anim-67b53257-41a8-4867-baa3-ac135e5ed9d8\",\"keyframes\":{\"transform\":[\"translate3d(0px, -243.1457%, 0)\",\"translate3d(0px, 0px, 0)\"]},\"delay\":0,\"duration\":600,\"easing\":\"cubic-bezier(0.2, 0.6, 0.0, 1)\",\"fill\":\"both\"}]<\/script><\/amp-story-animation><amp-story-grid-layer template=\"vertical\" aspect-ratio=\"412:618\" class=\"grid-layer\"><\/p>\n<div class=\"page-fullbleed-area\" style=\"background-color:#0f1519\">\n<div class=\"page-safe-area\">\n<div style=\"position:absolute;pointer-events:none;left:0;top:-9.25926%;width:100%;height:118.51852%;opacity:1\">\n<div style=\"pointer-events:initial;width:100%;height:100%;display:block;position:absolute;top:0;left:0;z-index:0\" class=\"mask\" id=\"el-7d8737ee-be28-4bd6-b090-e8403e242c60\">\n<div style=\"position:absolute;width:177.77778%;height:100%;left:-38.88889%;top:0%\" data-leaf-element=\"true\"><amp-img layout=\"fill\" src=\"https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2023\/02\/Drop-a-Database-in-SQL-Server-1.jpg\" alt=\"\" srcSet=\"https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2023\/02\/Drop-a-Database-in-SQL-Server-1.jpg 600w,https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2023\/02\/Drop-a-Database-in-SQL-Server-1-550x550.jpg 550w,https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2023\/02\/Drop-a-Database-in-SQL-Server-1-380x380.jpg 380w,https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2023\/02\/Drop-a-Database-in-SQL-Server-1-300x300.jpg 300w,https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2023\/02\/Drop-a-Database-in-SQL-Server-1-255x255.jpg 255w,https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2023\/02\/Drop-a-Database-in-SQL-Server-1-200x200.jpg 200w,https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2023\/02\/Drop-a-Database-in-SQL-Server-1-150x150.jpg 150w,https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2023\/02\/Drop-a-Database-in-SQL-Server-1-110x110.jpg 110w,https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2023\/02\/Drop-a-Database-in-SQL-Server-1-96x96.jpg 96w,https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2023\/02\/Drop-a-Database-in-SQL-Server-1-80x80.jpg 80w\" sizes=\"(min-width: 1024px) 80vh, 178vw\" disable-inline-width=\"true\"><\/amp-img><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p><\/amp-story-grid-layer><amp-story-grid-layer template=\"vertical\" aspect-ratio=\"412:618\" class=\"grid-layer\"><\/p>\n<div class=\"page-fullbleed-area\">\n<div class=\"page-safe-area\">\n<div style=\"position:absolute;pointer-events:none;left:14.56311%;top:48.05825%;width:70.38835%;height:39.32039%;opacity:1\">\n<div id=\"anim-a6bde6c1-bced-4f18-a2b9-ec5463c4bdd9\" class=\"animation-wrapper\" style=\"width:100%;height:100%;display:block;position:absolute;top:0;left:0;--initial-opacity:0;--initial-transform:none\">\n<div id=\"anim-a296a38b-643c-4ee7-8b39-393c97579eed\" class=\"animation-wrapper\" style=\"width:100%;height:100%;display:block;position:absolute;top:0;left:0;--initial-opacity:1;--initial-transform:translate3d(0px, 155.64701%, 0)\">\n<div style=\"pointer-events:initial;width:100%;height:100%;display:block;position:absolute;top:0;left:0;z-index:0;border-radius:0.6896551724137931% 0.6896551724137931% 0.6896551724137931% 0.6896551724137931% \/ 0.823045267489712% 0.823045267489712% 0.823045267489712% 0.823045267489712%;background-clip:content-box;background-color:rgba(69,69,69,0.5)\" id=\"el-f82ba7cb-876d-410a-9181-21c8acc420f2\">\n<h2 id=\"these-keys-are-not-chosen-as-the-primary-key-are-called-alternate-keys-they-provide-an-alternative-way-to-identify-rows\" class=\"fill text-wrapper\" style=\"white-space:pre-line;overflow-wrap:break-word;word-break:break-word;margin:-0.13577586206896575% 0;font-family:&quot;Roboto&quot;,sans-serif;font-size:0.453074em;line-height:1.2;text-align:center;padding:1.3793103448275863% 2.7586206896551726%;color:#000000\"><span><span style=\"color: #fff\">These keys are not chosen as the primary key are called alternate keys.<\/span><br \/>\n<span style=\"color: #fff\">They provide an alternative way to identify rows.<\/span><\/span><\/h2>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div style=\"position:absolute;pointer-events:none;left:11.77184%;top:96.1165%;width:27.91262%;height:3.8835%;opacity:1\">\n<div style=\"pointer-events:initial;width:100%;height:100%;display:block;position:absolute;top:0;left:0;z-index:0\" class=\"mask\" id=\"el-2d7c5451-8b20-41d4-8ee6-c6a110c7b0f3\">\n<div style=\"position:absolute;width:100%;height:100.31801%;left:0%;top:-0.15901%\" data-leaf-element=\"true\"><amp-img layout=\"fill\" src=\"https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/05\/pickl-transorg-LOGO.png\" alt=\"pickl-transorg-LOGO\" srcSet=\"https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/05\/pickl-transorg-LOGO.png 406w\" sizes=\"(min-width: 1024px) 13vh, 28vw\" disable-inline-width=\"true\"><\/amp-img><\/div>\n<\/div>\n<\/div>\n<div style=\"position:absolute;pointer-events:none;left:60.67961%;top:96.60194%;width:27.6699%;height:3.55987%;opacity:1\">\n<div style=\"pointer-events:initial;width:100%;height:100%;display:block;position:absolute;top:0;left:0;z-index:0;border-radius:7.017543859649122% 7.017543859649122% 7.017543859649122% 7.017543859649122% \/ 36.36363636363637% 36.36363636363637% 36.36363636363637% 36.36363636363637%\" class=\"mask\" id=\"el-0444d377-8a39-4003-a835-334685226eeb\">\n<div class=\"fill\" style=\"background-image:linear-gradient(0turn, rgba(249,25,25,0.77) 0%, rgba(249,110,110,0.77) 100%);will-change:transform\"><\/div>\n<\/div>\n<\/div>\n<div style=\"position:absolute;pointer-events:none;left:63.71359%;top:97.08738%;width:22.08738%;height:5.33981%;opacity:1\">\n<div id=\"anim-7b17401a-3cf6-4657-a5fd-1c43aa12e0ae\" class=\"animation-wrapper\" style=\"width:100%;height:100%;display:block;position:absolute;top:0;left:0;--initial-opacity:0;--initial-transform:none\">\n<div id=\"anim-c88e7b47-308f-410b-95d7-5e745bb3e791\" class=\"animation-wrapper\" style=\"width:100%;height:100%;display:block;position:absolute;top:0;left:0;--initial-opacity:1;--initial-transform:translate3d(0px, 227.94594%, 0)\">\n<div style=\"pointer-events:initial;width:100%;height:100%;display:block;position:absolute;top:0;left:0;z-index:0;border-radius:2.197802197802198% 2.197802197802198% 2.197802197802198% 2.197802197802198% \/ 6.0606060606060606% 6.0606060606060606% 6.0606060606060606% 6.0606060606060606%\" id=\"el-171f4877-c062-4a8e-a6bf-966682ce1c99\"><a href=\"https:\/\/pickl.ai\/blog\/discovering-different-types-of-keys-in-database-management-systems\/\" data-tooltip-icon=\"https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/07\/image1-4.jpg\" data-tooltip-text=\"Discovering Different Types of Keys in Dbms\" target=\"_blank\" rel=\"noreferrer noopener\" style=\"width:100%;height:100%;display:block;position:absolute;top:0;left:0\"><\/p>\n<p class=\"fill text-wrapper\" style=\"white-space:pre-line;overflow-wrap:break-word;word-break:break-word;margin:-0.21634615384615424% 0;font-family:&quot;Roboto&quot;,sans-serif;font-size:0.226537em;line-height:1.2;text-align:center;padding:0;color:#000000\"><span><span style=\"color: #fff\">Read More<\/span><\/p>\n<p><\/span><\/p>\n<p><\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n<div style=\"position:absolute;pointer-events:none;left:29.61165%;top:8.57605%;width:40.04854%;height:12.45955%;opacity:1\">\n<div id=\"anim-352c1386-a530-4fea-b076-ff4dc13675c2\" class=\"animation-wrapper\" style=\"width:100%;height:100%;display:block;position:absolute;top:0;left:0;--initial-opacity:0;--initial-transform:none\">\n<div id=\"anim-67b53257-41a8-4867-baa3-ac135e5ed9d8\" class=\"animation-wrapper\" style=\"width:100%;height:100%;display:block;position:absolute;top:0;left:0;--initial-opacity:1;--initial-transform:translate3d(0px, -243.1457%, 0)\">\n<div style=\"pointer-events:initial;width:100%;height:100%;display:block;position:absolute;top:0;left:0;z-index:0;border-radius:1.2121212121212122% 1.2121212121212122% 1.2121212121212122% 1.2121212121212122% \/ 2.5974025974025974% 2.5974025974025974% 2.5974025974025974% 2.5974025974025974%;background-clip:content-box;background-color:rgba(69,69,69,0.5)\" id=\"el-444c20b3-79f3-417e-a353-cb70da4fdc56\">\n<h2 id=\"alternate-key\" class=\"fill text-wrapper\" style=\"white-space:pre-line;overflow-wrap:break-word;word-break:break-word;margin:-0.16477272727272596% 0;font-family:&quot;Roboto&quot;,sans-serif;font-size:0.485437em;line-height:1.19;text-align:center;padding:2.4242424242424243% 4.848484848484849%;color:#000000\"><span><span style=\"font-weight: 700; color: #fff\">Alternate Key<\/span><\/span><\/h2>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p><\/amp-story-grid-layer><\/amp-story-page><amp-story-page id=\"6f91b707-be1d-47ad-9a95-559c5772c39b\" auto-advance-after=\"7s\"><amp-story-animation layout=\"nodisplay\" trigger=\"visibility\"><script type=\"application\/json\">[{\"selector\":\"#anim-89c2a3c8-bd17-4725-9adc-7b0e96fe50ab\",\"keyframes\":{\"opacity\":[0,1]},\"delay\":500,\"duration\":900,\"easing\":\"cubic-bezier(0.2, 0.6, 0.0, 1)\",\"fill\":\"both\"}]<\/script><\/amp-story-animation><amp-story-animation layout=\"nodisplay\" trigger=\"visibility\"><script type=\"application\/json\">[{\"selector\":\"#anim-fbd46bc9-0a10-4f77-a477-0495d409ec84\",\"keyframes\":{\"transform\":[\"translate3d(0px, 176.06837%, 0)\",\"translate3d(0px, 0px, 0)\"]},\"delay\":500,\"duration\":900,\"easing\":\"cubic-bezier(0.2, 0.6, 0.0, 1)\",\"fill\":\"both\"}]<\/script><\/amp-story-animation><amp-story-animation layout=\"nodisplay\" trigger=\"visibility\"><script type=\"application\/json\">[{\"selector\":\"#anim-cc32bcd9-3b8b-4b80-bddf-00ad6a753724\",\"keyframes\":{\"opacity\":[0,1]},\"delay\":500,\"duration\":900,\"easing\":\"cubic-bezier(0.2, 0.6, 0.0, 1)\",\"fill\":\"both\"}]<\/script><\/amp-story-animation><amp-story-animation layout=\"nodisplay\" trigger=\"visibility\"><script type=\"application\/json\">[{\"selector\":\"#anim-cd898c6b-6f60-4e7f-bc74-57fb1a3daa70\",\"keyframes\":{\"transform\":[\"translate3d(0px, 227.94594%, 0)\",\"translate3d(0px, 0px, 0)\"]},\"delay\":500,\"duration\":900,\"easing\":\"cubic-bezier(0.2, 0.6, 0.0, 1)\",\"fill\":\"both\"}]<\/script><\/amp-story-animation><amp-story-animation layout=\"nodisplay\" trigger=\"visibility\"><script type=\"application\/json\">[{\"selector\":\"#anim-a791e41d-277d-4925-8746-cd83792f6e0f\",\"keyframes\":{\"opacity\":[0,1]},\"delay\":0,\"duration\":600,\"easing\":\"cubic-bezier(0.2, 0.6, 0.0, 1)\",\"fill\":\"both\"}]<\/script><\/amp-story-animation><amp-story-animation layout=\"nodisplay\" trigger=\"visibility\"><script type=\"application\/json\">[{\"selector\":\"#anim-528ffba6-07ee-4f27-a8c5-615df8a9292e\",\"keyframes\":{\"transform\":[\"translate3d(0px, -243.1457%, 0)\",\"translate3d(0px, 0px, 0)\"]},\"delay\":0,\"duration\":600,\"easing\":\"cubic-bezier(0.2, 0.6, 0.0, 1)\",\"fill\":\"both\"}]<\/script><\/amp-story-animation><amp-story-grid-layer template=\"vertical\" aspect-ratio=\"412:618\" class=\"grid-layer\"><\/p>\n<div class=\"page-fullbleed-area\" style=\"background-color:#183451\">\n<div class=\"page-safe-area\">\n<div style=\"position:absolute;pointer-events:none;left:0;top:-9.25926%;width:100%;height:118.51852%;opacity:1\">\n<div style=\"pointer-events:initial;width:100%;height:100%;display:block;position:absolute;top:0;left:0;z-index:0\" class=\"mask\" id=\"el-59e93229-ff79-4703-86d6-280f8660d4fa\">\n<div style=\"position:absolute;width:339.70276%;height:100%;left:-119.85138%;top:0%\" data-leaf-element=\"true\"><amp-img layout=\"fill\" src=\"https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/08\/computer-programmer-coding-laptop-with-ai-data-science-futuristic-tech-background-1.jpg\" alt=\"asyncio in Python\" srcSet=\"https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/08\/computer-programmer-coding-laptop-with-ai-data-science-futuristic-tech-background-1.jpg 1200w,https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/08\/computer-programmer-coding-laptop-with-ai-data-science-futuristic-tech-background-1-1160x607.jpg 1160w,https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/08\/computer-programmer-coding-laptop-with-ai-data-science-futuristic-tech-background-1-1024x536.jpg 1024w,https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/08\/computer-programmer-coding-laptop-with-ai-data-science-futuristic-tech-background-1-800x419.jpg 800w,https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/08\/computer-programmer-coding-laptop-with-ai-data-science-futuristic-tech-background-1-768x402.jpg 768w,https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/08\/computer-programmer-coding-laptop-with-ai-data-science-futuristic-tech-background-1-550x288.jpg 550w,https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/08\/computer-programmer-coding-laptop-with-ai-data-science-futuristic-tech-background-1-380x199.jpg 380w,https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/08\/computer-programmer-coding-laptop-with-ai-data-science-futuristic-tech-background-1-300x157.jpg 300w,https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/08\/computer-programmer-coding-laptop-with-ai-data-science-futuristic-tech-background-1-255x133.jpg 255w,https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/08\/computer-programmer-coding-laptop-with-ai-data-science-futuristic-tech-background-1-200x105.jpg 200w\" sizes=\"(min-width: 1024px) 153vh, 341vw\" disable-inline-width=\"true\"><\/amp-img><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p><\/amp-story-grid-layer><amp-story-grid-layer template=\"vertical\" aspect-ratio=\"412:618\" class=\"grid-layer\"><\/p>\n<div class=\"page-fullbleed-area\">\n<div class=\"page-safe-area\">\n<div style=\"position:absolute;pointer-events:none;left:14.56311%;top:50%;width:70.38835%;height:33.65696%;opacity:1\">\n<div id=\"anim-89c2a3c8-bd17-4725-9adc-7b0e96fe50ab\" class=\"animation-wrapper\" style=\"width:100%;height:100%;display:block;position:absolute;top:0;left:0;--initial-opacity:0;--initial-transform:none\">\n<div id=\"anim-fbd46bc9-0a10-4f77-a477-0495d409ec84\" class=\"animation-wrapper\" style=\"width:100%;height:100%;display:block;position:absolute;top:0;left:0;--initial-opacity:1;--initial-transform:translate3d(0px, 176.06837%, 0)\">\n<div style=\"pointer-events:initial;width:100%;height:100%;display:block;position:absolute;top:0;left:0;z-index:0;border-radius:0.6896551724137931% 0.6896551724137931% 0.6896551724137931% 0.6896551724137931% \/ 0.9615384615384616% 0.9615384615384616% 0.9615384615384616% 0.9615384615384616%;background-clip:content-box;background-color:rgba(69,69,69,0.5)\" id=\"el-00085b03-a4f8-4f3e-b39b-70c0157df654\">\n<h2 id=\"it-is-a-column-in-one-table-that-refers-to-the-primary-key-of-another-tableit-establishes-a-link-between-two-tables\" class=\"fill text-wrapper\" style=\"white-space:pre-line;overflow-wrap:break-word;word-break:break-word;margin:-0.13577586206896575% 0;font-family:&quot;Roboto&quot;,sans-serif;font-size:0.453074em;line-height:1.2;text-align:center;padding:1.3793103448275863% 2.7586206896551726%;color:#000000\"><span><span style=\"color: #fff\">It is a column in one table that refers to the primary key of another table<\/span><br \/>\n<span style=\"color: #fff\">It establishes a link between two tables.<\/span><\/span><\/h2>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div style=\"position:absolute;pointer-events:none;left:11.77184%;top:96.1165%;width:27.91262%;height:3.8835%;opacity:1\">\n<div style=\"pointer-events:initial;width:100%;height:100%;display:block;position:absolute;top:0;left:0;z-index:0\" class=\"mask\" id=\"el-a9ce210a-91a5-4e9b-a4ca-dfbadda8c9dd\">\n<div style=\"position:absolute;width:100%;height:100.31801%;left:0%;top:-0.15901%\" data-leaf-element=\"true\"><amp-img layout=\"fill\" src=\"https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/05\/pickl-transorg-LOGO.png\" alt=\"pickl-transorg-LOGO\" srcSet=\"https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/05\/pickl-transorg-LOGO.png 406w\" sizes=\"(min-width: 1024px) 13vh, 28vw\" disable-inline-width=\"true\"><\/amp-img><\/div>\n<\/div>\n<\/div>\n<div style=\"position:absolute;pointer-events:none;left:60.67961%;top:96.60194%;width:27.6699%;height:3.55987%;opacity:1\">\n<div style=\"pointer-events:initial;width:100%;height:100%;display:block;position:absolute;top:0;left:0;z-index:0;border-radius:7.017543859649122% 7.017543859649122% 7.017543859649122% 7.017543859649122% \/ 36.36363636363637% 36.36363636363637% 36.36363636363637% 36.36363636363637%\" class=\"mask\" id=\"el-6a2a5bc2-645f-4b6a-b548-74533e1d399b\">\n<div class=\"fill\" style=\"background-image:linear-gradient(0turn, rgba(249,25,25,0.77) 0%, rgba(249,110,110,0.77) 100%);will-change:transform\"><\/div>\n<\/div>\n<\/div>\n<div style=\"position:absolute;pointer-events:none;left:63.71359%;top:97.08738%;width:22.08738%;height:5.33981%;opacity:1\">\n<div id=\"anim-cc32bcd9-3b8b-4b80-bddf-00ad6a753724\" class=\"animation-wrapper\" style=\"width:100%;height:100%;display:block;position:absolute;top:0;left:0;--initial-opacity:0;--initial-transform:none\">\n<div id=\"anim-cd898c6b-6f60-4e7f-bc74-57fb1a3daa70\" class=\"animation-wrapper\" style=\"width:100%;height:100%;display:block;position:absolute;top:0;left:0;--initial-opacity:1;--initial-transform:translate3d(0px, 227.94594%, 0)\">\n<div style=\"pointer-events:initial;width:100%;height:100%;display:block;position:absolute;top:0;left:0;z-index:0;border-radius:2.197802197802198% 2.197802197802198% 2.197802197802198% 2.197802197802198% \/ 6.0606060606060606% 6.0606060606060606% 6.0606060606060606% 6.0606060606060606%\" id=\"el-db7db934-230e-4b9e-8dec-d61b72645d7a\"><a href=\"https:\/\/pickl.ai\/blog\/discovering-different-types-of-keys-in-database-management-systems\/\" data-tooltip-icon=\"https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/07\/image1-4.jpg\" data-tooltip-text=\"Discovering Different Types of Keys in Dbms\" target=\"_blank\" rel=\"noreferrer noopener\" style=\"width:100%;height:100%;display:block;position:absolute;top:0;left:0\"><\/p>\n<p class=\"fill text-wrapper\" style=\"white-space:pre-line;overflow-wrap:break-word;word-break:break-word;margin:-0.21634615384615424% 0;font-family:&quot;Roboto&quot;,sans-serif;font-size:0.226537em;line-height:1.2;text-align:center;padding:0;color:#000000\"><span><span style=\"color: #fff\">Read More<\/span><\/p>\n<p><\/span><\/p>\n<p><\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n<div style=\"position:absolute;pointer-events:none;left:29.61165%;top:8.57605%;width:40.04854%;height:12.45955%;opacity:1\">\n<div id=\"anim-a791e41d-277d-4925-8746-cd83792f6e0f\" class=\"animation-wrapper\" style=\"width:100%;height:100%;display:block;position:absolute;top:0;left:0;--initial-opacity:0;--initial-transform:none\">\n<div id=\"anim-528ffba6-07ee-4f27-a8c5-615df8a9292e\" class=\"animation-wrapper\" style=\"width:100%;height:100%;display:block;position:absolute;top:0;left:0;--initial-opacity:1;--initial-transform:translate3d(0px, -243.1457%, 0)\">\n<div style=\"pointer-events:initial;width:100%;height:100%;display:block;position:absolute;top:0;left:0;z-index:0;border-radius:1.2121212121212122% 1.2121212121212122% 1.2121212121212122% 1.2121212121212122% \/ 2.5974025974025974% 2.5974025974025974% 2.5974025974025974% 2.5974025974025974%;background-clip:content-box;background-color:rgba(69,69,69,0.5)\" id=\"el-7a34037c-f508-4d43-bc2d-a8071232e8b5\">\n<h2 id=\"foreign-key\" class=\"fill text-wrapper\" style=\"white-space:pre-line;overflow-wrap:break-word;word-break:break-word;margin:-0.16477272727272596% 0;font-family:&quot;Roboto&quot;,sans-serif;font-size:0.485437em;line-height:1.19;text-align:center;padding:2.4242424242424243% 4.848484848484849%;color:#000000\"><span><span style=\"font-weight: 700; color: #fff\">Foreign Key<\/span><\/span><\/h2>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p><\/amp-story-grid-layer><\/amp-story-page><amp-story-page id=\"e5e42599-06c0-47d0-a57f-bf8ca19dce5a\" auto-advance-after=\"7s\"><amp-story-animation layout=\"nodisplay\" trigger=\"visibility\"><script type=\"application\/json\">[{\"selector\":\"#anim-a1d0ee1d-f3f9-4333-8b8e-5fff3e996135\",\"keyframes\":{\"opacity\":[0,1]},\"delay\":500,\"duration\":900,\"easing\":\"cubic-bezier(0.2, 0.6, 0.0, 1)\",\"fill\":\"both\"}]<\/script><\/amp-story-animation><amp-story-animation layout=\"nodisplay\" trigger=\"visibility\"><script type=\"application\/json\">[{\"selector\":\"#anim-d2322bf3-09d5-41dd-9c4a-98e4707ec0dd\",\"keyframes\":{\"transform\":[\"translate3d(0px, 142.67950%, 0)\",\"translate3d(0px, 0px, 0)\"]},\"delay\":500,\"duration\":900,\"easing\":\"cubic-bezier(0.2, 0.6, 0.0, 1)\",\"fill\":\"both\"}]<\/script><\/amp-story-animation><amp-story-animation layout=\"nodisplay\" trigger=\"visibility\"><script type=\"application\/json\">[{\"selector\":\"#anim-695b85dd-185f-4bfc-b7f7-4c8eed673779\",\"keyframes\":{\"opacity\":[0,1]},\"delay\":500,\"duration\":900,\"easing\":\"cubic-bezier(0.2, 0.6, 0.0, 1)\",\"fill\":\"both\"}]<\/script><\/amp-story-animation><amp-story-animation layout=\"nodisplay\" trigger=\"visibility\"><script type=\"application\/json\">[{\"selector\":\"#anim-4f29ef5a-c029-4efd-add5-7d48322015a3\",\"keyframes\":{\"transform\":[\"translate3d(0px, 227.94594%, 0)\",\"translate3d(0px, 0px, 0)\"]},\"delay\":500,\"duration\":900,\"easing\":\"cubic-bezier(0.2, 0.6, 0.0, 1)\",\"fill\":\"both\"}]<\/script><\/amp-story-animation><amp-story-animation layout=\"nodisplay\" trigger=\"visibility\"><script type=\"application\/json\">[{\"selector\":\"#anim-6b85f77d-bac6-4b6c-8e47-63a9605e21eb\",\"keyframes\":{\"opacity\":[0,1]},\"delay\":0,\"duration\":600,\"easing\":\"cubic-bezier(0.2, 0.6, 0.0, 1)\",\"fill\":\"both\"}]<\/script><\/amp-story-animation><amp-story-animation layout=\"nodisplay\" trigger=\"visibility\"><script type=\"application\/json\">[{\"selector\":\"#anim-51f28bcc-ff5b-4cb4-8954-92ee2d57338f\",\"keyframes\":{\"transform\":[\"translate3d(0px, -243.1457%, 0)\",\"translate3d(0px, 0px, 0)\"]},\"delay\":0,\"duration\":600,\"easing\":\"cubic-bezier(0.2, 0.6, 0.0, 1)\",\"fill\":\"both\"}]<\/script><\/amp-story-animation><amp-story-grid-layer template=\"vertical\" aspect-ratio=\"412:618\" class=\"grid-layer\"><\/p>\n<div class=\"page-fullbleed-area\" style=\"background-color:#cabfb8\">\n<div class=\"page-safe-area\">\n<div style=\"position:absolute;pointer-events:none;left:0;top:-9.25926%;width:100%;height:118.51852%;opacity:1\">\n<div style=\"pointer-events:initial;width:100%;height:100%;display:block;position:absolute;top:0;left:0;z-index:0\" class=\"mask\" id=\"el-316878c5-5bf9-42d9-af02-3f847bfa907b\">\n<div style=\"position:absolute;width:133.38544%;height:100%;left:-16.69272%;top:0%\" data-leaf-element=\"true\"><amp-img layout=\"fill\" src=\"https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2023\/08\/cropped-image3-7.jpg\" alt=\"What is Data Labelling in Machine Learning\" srcSet=\"https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2023\/08\/cropped-image3-7.jpg 640w,https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2023\/08\/cropped-image3-7-550x733.jpg 550w,https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2023\/08\/cropped-image3-7-380x506.jpg 380w,https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2023\/08\/cropped-image3-7-300x400.jpg 300w,https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2023\/08\/cropped-image3-7-255x340.jpg 255w,https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2023\/08\/cropped-image3-7-225x300.jpg 225w,https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2023\/08\/cropped-image3-7-200x267.jpg 200w,https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2023\/08\/cropped-image3-7-150x200.jpg 150w,https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2023\/08\/cropped-image3-7-110x147.jpg 110w\" sizes=\"(min-width: 1024px) 60vh, 133vw\" disable-inline-width=\"true\"><\/amp-img><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p><\/amp-story-grid-layer><amp-story-grid-layer template=\"vertical\" aspect-ratio=\"412:618\" class=\"grid-layer\"><\/p>\n<div class=\"page-fullbleed-area\">\n<div class=\"page-safe-area\">\n<div style=\"position:absolute;pointer-events:none;left:15.29126%;top:45.30744%;width:70.38835%;height:44.82201%;opacity:1\">\n<div id=\"anim-a1d0ee1d-f3f9-4333-8b8e-5fff3e996135\" class=\"animation-wrapper\" style=\"width:100%;height:100%;display:block;position:absolute;top:0;left:0;--initial-opacity:0;--initial-transform:none\">\n<div id=\"anim-d2322bf3-09d5-41dd-9c4a-98e4707ec0dd\" class=\"animation-wrapper\" style=\"width:100%;height:100%;display:block;position:absolute;top:0;left:0;--initial-opacity:1;--initial-transform:translate3d(0px, 142.67950%, 0)\">\n<div style=\"pointer-events:initial;width:100%;height:100%;display:block;position:absolute;top:0;left:0;z-index:0;border-radius:0.6896551724137931% 0.6896551724137931% 0.6896551724137931% 0.6896551724137931% \/ 0.7220216606498195% 0.7220216606498195% 0.7220216606498195% 0.7220216606498195%;background-clip:content-box;background-color:rgba(69,69,69,0.5)\" id=\"el-74654e4d-f6b2-49c6-856c-7b9e0f5cfb4d\">\n<h2 id=\"it-is-a-combination-of-multiple-columns-that-uniquely-identifies-a-row-in-a-table-it-is-used-when-a-single-column-cannot-guarantee-uniqueness\" class=\"fill text-wrapper\" style=\"white-space:pre-line;overflow-wrap:break-word;word-break:break-word;margin:-0.13577586206896575% 0;font-family:&quot;Roboto&quot;,sans-serif;font-size:0.453074em;line-height:1.2;text-align:center;padding:1.3793103448275863% 2.7586206896551726%;color:#000000\"><span><span style=\"color: #fff\">It is a combination of multiple columns that uniquely identifies a row in a table.<\/span><br \/>\n<span style=\"color: #fff\">It is used when a single column cannot guarantee uniqueness.<\/span><\/span><\/h2>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div style=\"position:absolute;pointer-events:none;left:11.77184%;top:96.1165%;width:27.91262%;height:3.8835%;opacity:1\">\n<div style=\"pointer-events:initial;width:100%;height:100%;display:block;position:absolute;top:0;left:0;z-index:0\" class=\"mask\" id=\"el-59ed9793-6530-4e1c-943c-179cff1efe1a\">\n<div style=\"position:absolute;width:100%;height:100.31801%;left:0%;top:-0.15901%\" data-leaf-element=\"true\"><amp-img layout=\"fill\" src=\"https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/05\/pickl-transorg-LOGO.png\" alt=\"pickl-transorg-LOGO\" srcSet=\"https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/05\/pickl-transorg-LOGO.png 406w\" sizes=\"(min-width: 1024px) 13vh, 28vw\" disable-inline-width=\"true\"><\/amp-img><\/div>\n<\/div>\n<\/div>\n<div style=\"position:absolute;pointer-events:none;left:60.67961%;top:96.60194%;width:27.6699%;height:3.55987%;opacity:1\">\n<div style=\"pointer-events:initial;width:100%;height:100%;display:block;position:absolute;top:0;left:0;z-index:0;border-radius:7.017543859649122% 7.017543859649122% 7.017543859649122% 7.017543859649122% \/ 36.36363636363637% 36.36363636363637% 36.36363636363637% 36.36363636363637%\" class=\"mask\" id=\"el-01e0c417-c92c-4850-94dc-4991011ac6b5\">\n<div class=\"fill\" style=\"background-image:linear-gradient(0turn, rgba(249,25,25,0.77) 0%, rgba(249,110,110,0.77) 100%);will-change:transform\"><\/div>\n<\/div>\n<\/div>\n<div style=\"position:absolute;pointer-events:none;left:63.71359%;top:97.08738%;width:22.08738%;height:5.33981%;opacity:1\">\n<div id=\"anim-695b85dd-185f-4bfc-b7f7-4c8eed673779\" class=\"animation-wrapper\" style=\"width:100%;height:100%;display:block;position:absolute;top:0;left:0;--initial-opacity:0;--initial-transform:none\">\n<div id=\"anim-4f29ef5a-c029-4efd-add5-7d48322015a3\" class=\"animation-wrapper\" style=\"width:100%;height:100%;display:block;position:absolute;top:0;left:0;--initial-opacity:1;--initial-transform:translate3d(0px, 227.94594%, 0)\">\n<div style=\"pointer-events:initial;width:100%;height:100%;display:block;position:absolute;top:0;left:0;z-index:0;border-radius:2.197802197802198% 2.197802197802198% 2.197802197802198% 2.197802197802198% \/ 6.0606060606060606% 6.0606060606060606% 6.0606060606060606% 6.0606060606060606%\" id=\"el-22ad4292-9a8d-4528-96aa-895a37daceaf\"><a href=\"https:\/\/pickl.ai\/blog\/discovering-different-types-of-keys-in-database-management-systems\/\" data-tooltip-icon=\"https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/07\/image1-4.jpg\" data-tooltip-text=\"Discovering Different Types of Keys in Dbms\" target=\"_blank\" rel=\"noreferrer noopener\" style=\"width:100%;height:100%;display:block;position:absolute;top:0;left:0\"><\/p>\n<p class=\"fill text-wrapper\" style=\"white-space:pre-line;overflow-wrap:break-word;word-break:break-word;margin:-0.21634615384615424% 0;font-family:&quot;Roboto&quot;,sans-serif;font-size:0.226537em;line-height:1.2;text-align:center;padding:0;color:#000000\"><span><span style=\"color: #fff\">Read More<\/span><\/p>\n<p><\/span><\/p>\n<p><\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n<div style=\"position:absolute;pointer-events:none;left:29.61165%;top:8.57605%;width:40.04854%;height:12.45955%;opacity:1\">\n<div id=\"anim-6b85f77d-bac6-4b6c-8e47-63a9605e21eb\" class=\"animation-wrapper\" style=\"width:100%;height:100%;display:block;position:absolute;top:0;left:0;--initial-opacity:0;--initial-transform:none\">\n<div id=\"anim-51f28bcc-ff5b-4cb4-8954-92ee2d57338f\" class=\"animation-wrapper\" style=\"width:100%;height:100%;display:block;position:absolute;top:0;left:0;--initial-opacity:1;--initial-transform:translate3d(0px, -243.1457%, 0)\">\n<div style=\"pointer-events:initial;width:100%;height:100%;display:block;position:absolute;top:0;left:0;z-index:0;border-radius:1.2121212121212122% 1.2121212121212122% 1.2121212121212122% 1.2121212121212122% \/ 2.5974025974025974% 2.5974025974025974% 2.5974025974025974% 2.5974025974025974%;background-clip:content-box;background-color:rgba(69,69,69,0.5)\" id=\"el-67951138-dc68-434a-8def-aa85c840e0b2\">\n<h2 id=\"composite-key\" class=\"fill text-wrapper\" style=\"white-space:pre-line;overflow-wrap:break-word;word-break:break-word;margin:-0.16477272727272596% 0;font-family:&quot;Roboto&quot;,sans-serif;font-size:0.485437em;line-height:1.19;text-align:center;padding:2.4242424242424243% 4.848484848484849%;color:#000000\"><span><span style=\"font-weight: 700; color: #fff\">Composite Key<\/span><\/span><\/h2>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p><\/amp-story-grid-layer><\/amp-story-page><amp-story-page id=\"9d2f6e69-1e08-42cd-a872-afc1f63af8ba\" 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0.6, 0.0, 1)\",\"fill\":\"both\"}]<\/script><\/amp-story-animation><amp-story-animation layout=\"nodisplay\" trigger=\"visibility\"><script type=\"application\/json\">[{\"selector\":\"#anim-b918f563-e0bc-4f2e-9cab-89101311ed92\",\"keyframes\":{\"transform\":[\"translate3d(0px, 227.94594%, 0)\",\"translate3d(0px, 0px, 0)\"]},\"delay\":500,\"duration\":900,\"easing\":\"cubic-bezier(0.2, 0.6, 0.0, 1)\",\"fill\":\"both\"}]<\/script><\/amp-story-animation><amp-story-animation layout=\"nodisplay\" trigger=\"visibility\"><script type=\"application\/json\">[{\"selector\":\"#anim-c4a03ed9-63c2-49b6-b56f-4b98c00768f6\",\"keyframes\":{\"opacity\":[0,1]},\"delay\":0,\"duration\":600,\"easing\":\"cubic-bezier(0.2, 0.6, 0.0, 1)\",\"fill\":\"both\"}]<\/script><\/amp-story-animation><amp-story-animation layout=\"nodisplay\" trigger=\"visibility\"><script type=\"application\/json\">[{\"selector\":\"#anim-672286fc-7597-4b3d-9304-29f28c6699f1\",\"keyframes\":{\"transform\":[\"translate3d(0px, -243.1457%, 0)\",\"translate3d(0px, 0px, 0)\"]},\"delay\":0,\"duration\":600,\"easing\":\"cubic-bezier(0.2, 0.6, 0.0, 1)\",\"fill\":\"both\"}]<\/script><\/amp-story-animation><amp-story-grid-layer template=\"vertical\" aspect-ratio=\"412:618\" class=\"grid-layer\"><\/p>\n<div class=\"page-fullbleed-area\" style=\"background-color:#16252f\">\n<div class=\"page-safe-area\">\n<div style=\"position:absolute;pointer-events:none;left:0;top:-9.25926%;width:100%;height:118.51852%;opacity:1\">\n<div style=\"pointer-events:initial;width:100%;height:100%;display:block;position:absolute;top:0;left:0;z-index:0\" class=\"mask\" id=\"el-4306e8f5-fb7a-48f4-83dd-ead900e78d12\">\n<div style=\"position:absolute;width:141.31945%;height:100%;left:-20.65972%;top:0%\" data-leaf-element=\"true\"><amp-img layout=\"fill\" src=\"https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/08\/analytics-report-laptop-computer-data-science-scaled.jpg\" alt=\"analytics-report-laptop-computer-data-science\" srcSet=\"https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/08\/analytics-report-laptop-computer-data-science-scaled.jpg 2035w,https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/08\/analytics-report-laptop-computer-data-science-1628x2048.jpg 1628w,https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/08\/analytics-report-laptop-computer-data-science-1221x1536.jpg 1221w,https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/08\/analytics-report-laptop-computer-data-science-1160x1459.jpg 1160w,https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/08\/analytics-report-laptop-computer-data-science-814x1024.jpg 814w,https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/08\/analytics-report-laptop-computer-data-science-800x1006.jpg 800w,https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/08\/analytics-report-laptop-computer-data-science-768x966.jpg 768w,https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/08\/analytics-report-laptop-computer-data-science-550x692.jpg 550w,https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/08\/analytics-report-laptop-computer-data-science-380x478.jpg 380w,https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/08\/analytics-report-laptop-computer-data-science-300x377.jpg 300w,https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/08\/analytics-report-laptop-computer-data-science-255x321.jpg 255w,https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/08\/analytics-report-laptop-computer-data-science-238x300.jpg 238w,https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/08\/analytics-report-laptop-computer-data-science-200x252.jpg 200w,https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/08\/analytics-report-laptop-computer-data-science-150x189.jpg 150w,https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/08\/analytics-report-laptop-computer-data-science-110x138.jpg 110w\" sizes=\"(min-width: 1024px) 64vh, 141vw\" disable-inline-width=\"true\"><\/amp-img><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p><\/amp-story-grid-layer><amp-story-grid-layer template=\"vertical\" aspect-ratio=\"412:618\" class=\"grid-layer\"><\/p>\n<div class=\"page-fullbleed-area\">\n<div class=\"page-safe-area\">\n<div style=\"position:absolute;pointer-events:none;left:15.04854%;top:49.83819%;width:70.38835%;height:33.65696%;opacity:1\">\n<div id=\"anim-e656d16f-674e-4d98-8d34-39ed12ac6db5\" class=\"animation-wrapper\" style=\"width:100%;height:100%;display:block;position:absolute;top:0;left:0;--initial-opacity:0;--initial-transform:none\">\n<div id=\"anim-82628405-3312-496c-8318-d5386510ce02\" class=\"animation-wrapper\" style=\"width:100%;height:100%;display:block;position:absolute;top:0;left:0;--initial-opacity:1;--initial-transform:translate3d(0px, 176.54913%, 0)\">\n<div style=\"pointer-events:initial;width:100%;height:100%;display:block;position:absolute;top:0;left:0;z-index:0;border-radius:0.6896551724137931% 0.6896551724137931% 0.6896551724137931% 0.6896551724137931% \/ 0.9615384615384616% 0.9615384615384616% 0.9615384615384616% 0.9615384615384616%;background-clip:content-box;background-color:rgba(69,69,69,0.5)\" id=\"el-5f3f0692-0f1f-4cb7-9d3c-05d374ce9044\">\n<h2 id=\"it-ensures-that-all-values-in-a-column-are-different-this-key-is-similar-to-a-primary-key-but-allows-null-values\" class=\"fill text-wrapper\" style=\"white-space:pre-line;overflow-wrap:break-word;word-break:break-word;margin:-0.13577586206896575% 0;font-family:&quot;Roboto&quot;,sans-serif;font-size:0.453074em;line-height:1.2;text-align:center;padding:1.3793103448275863% 2.7586206896551726%;color:#000000\"><span><span style=\"color: #fff\">It ensures that all values in a column are different.<\/span><br \/>\n<span style=\"color: #fff\">This key is similar to a primary key but allows null values.<\/span><\/span><\/h2>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div style=\"position:absolute;pointer-events:none;left:11.77184%;top:96.1165%;width:27.91262%;height:3.8835%;opacity:1\">\n<div style=\"pointer-events:initial;width:100%;height:100%;display:block;position:absolute;top:0;left:0;z-index:0\" class=\"mask\" id=\"el-30d8e43b-4bb7-4176-a569-30164c153b95\">\n<div style=\"position:absolute;width:100%;height:100.31801%;left:0%;top:-0.15901%\" data-leaf-element=\"true\"><amp-img layout=\"fill\" src=\"https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/05\/pickl-transorg-LOGO.png\" alt=\"pickl-transorg-LOGO\" srcSet=\"https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/05\/pickl-transorg-LOGO.png 406w\" sizes=\"(min-width: 1024px) 13vh, 28vw\" disable-inline-width=\"true\"><\/amp-img><\/div>\n<\/div>\n<\/div>\n<div style=\"position:absolute;pointer-events:none;left:60.67961%;top:96.60194%;width:27.6699%;height:3.55987%;opacity:1\">\n<div style=\"pointer-events:initial;width:100%;height:100%;display:block;position:absolute;top:0;left:0;z-index:0;border-radius:7.017543859649122% 7.017543859649122% 7.017543859649122% 7.017543859649122% \/ 36.36363636363637% 36.36363636363637% 36.36363636363637% 36.36363636363637%\" class=\"mask\" id=\"el-c925f72c-76d3-4585-a918-2f29142a0c2a\">\n<div class=\"fill\" style=\"background-image:linear-gradient(0turn, rgba(249,25,25,0.77) 0%, rgba(249,110,110,0.77) 100%);will-change:transform\"><\/div>\n<\/div>\n<\/div>\n<div style=\"position:absolute;pointer-events:none;left:63.71359%;top:97.08738%;width:22.08738%;height:5.33981%;opacity:1\">\n<div id=\"anim-a7050d60-a78f-4e43-95bd-62c9831521eb\" class=\"animation-wrapper\" style=\"width:100%;height:100%;display:block;position:absolute;top:0;left:0;--initial-opacity:0;--initial-transform:none\">\n<div id=\"anim-b918f563-e0bc-4f2e-9cab-89101311ed92\" class=\"animation-wrapper\" 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style=\"white-space:pre-line;overflow-wrap:break-word;word-break:break-word;margin:-0.21634615384615424% 0;font-family:&quot;Roboto&quot;,sans-serif;font-size:0.226537em;line-height:1.2;text-align:center;padding:0;color:#000000\"><span><span style=\"color: #fff\">Read More<\/span><\/p>\n<p><\/span><\/p>\n<p><\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n<div style=\"position:absolute;pointer-events:none;left:29.61165%;top:8.57605%;width:40.04854%;height:12.45955%;opacity:1\">\n<div id=\"anim-c4a03ed9-63c2-49b6-b56f-4b98c00768f6\" class=\"animation-wrapper\" style=\"width:100%;height:100%;display:block;position:absolute;top:0;left:0;--initial-opacity:0;--initial-transform:none\">\n<div id=\"anim-672286fc-7597-4b3d-9304-29f28c6699f1\" class=\"animation-wrapper\" style=\"width:100%;height:100%;display:block;position:absolute;top:0;left:0;--initial-opacity:1;--initial-transform:translate3d(0px, -243.1457%, 0)\">\n<div style=\"pointer-events:initial;width:100%;height:100%;display:block;position:absolute;top:0;left:0;z-index:0;border-radius:1.2121212121212122% 1.2121212121212122% 1.2121212121212122% 1.2121212121212122% \/ 2.5974025974025974% 2.5974025974025974% 2.5974025974025974% 2.5974025974025974%;background-clip:content-box;background-color:rgba(69,69,69,0.5)\" id=\"el-7aeb65d3-782a-4780-af1f-7c62d620c4dd\">\n<h2 id=\"unique-key\" class=\"fill text-wrapper\" style=\"white-space:pre-line;overflow-wrap:break-word;word-break:break-word;margin:-0.16477272727272596% 0;font-family:&quot;Roboto&quot;,sans-serif;font-size:0.485437em;line-height:1.19;text-align:center;padding:2.4242424242424243% 4.848484848484849%;color:#000000\"><span><span style=\"font-weight: 700; color: #fff\">Unique Key<\/span><\/span><\/h2>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p><\/amp-story-grid-layer><\/amp-story-page><\/amp-story><\/body><\/html><\/p>\n","protected":false},"excerpt":{"rendered":"Understand the different types of keys used in database management systems to efficiently organize and manage data.\n","protected":false},"author":27,"featured_media":13921,"template":"","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"web_stories_publisher_logo":935,"web_stories_poster":[],"web_stories_products":[],"footnotes":""},"web_story_category":[],"web_story_tag":[],"class_list":["post-13919","web-story","type-web-story","status-publish","has-post-thumbnail"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v20.3 (Yoast SEO v27.6) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Types of Keys in DBMS - Pickl.AI<\/title>\n<meta name=\"description\" content=\"Understand the different types of keys used in database management systems to efficiently organize and manage data.\" \/>\n<meta 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