{"id":5976,"date":"2024-02-09T10:55:14","date_gmt":"2024-02-09T10:55:14","guid":{"rendered":"https:\/\/www.pickl.ai\/blog\/?post_type=web-story&#038;p=5976"},"modified":"2024-02-09T10:55:14","modified_gmt":"2024-02-09T10:55:14","slug":"sql-interview-questions-for-data-analysts","status":"publish","type":"web-story","link":"https:\/\/www.pickl.ai\/blog\/web-stories\/sql-interview-questions-for-data-analysts\/","title":{"rendered":"SQL Interview Questions for Data Analysts"},"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=EB+Garamond%3Awght%40700&amp;family=Alegreya%3Awght%40700&amp;family=Roboto%3Awght%40700\" rel=\"stylesheet\"\/><link href=\"https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/02\/Blue-Economic-statistic-Abstract-Shape-Business-Book-Cover-2.png\" rel=\"preload\" as=\"image\"\/>\n<style amp-boilerplate=\"\">body{-webkit-animation:-amp-start 8s steps(1,end) 0s 1 normal both;-moz-animation:-amp-start 8s steps(1,end) 0s 1 normal both;-ms-animation:-amp-start 8s steps(1,end) 0s 1 normal both;animation:-amp-start 8s steps(1,end) 0s 1 normal both}@-webkit-keyframes -amp-start{from{visibility:hidden}to{visibility:visible}}@-moz-keyframes -amp-start{from{visibility:hidden}to{visibility:visible}}@-ms-keyframes -amp-start{from{visibility:hidden}to{visibility:visible}}@-o-keyframes -amp-start{from{visibility:hidden}to{visibility:visible}}@keyframes -amp-start{from{visibility:hidden}to{visibility:visible}}<\/style>\n<p><noscript><\/p>\n<style amp-boilerplate=\"\">body{-webkit-animation:none;-moz-animation:none;-ms-animation:none;animation:none}<\/style>\n<p><\/noscript><\/p>\n<style amp-custom=\"\">\n              h1, h2, h3 { font-weight: normal; }<\/p>\n<p>              amp-story-page {\n                background-color: #131516;\n              }<\/p>\n<p>              amp-story-grid-layer {\n                overflow: visible;\n              }<\/p>\n<p>              @media (max-aspect-ratio: 9 \/ 16)  {\n                @media (min-aspect-ratio: 320 \/ 678) {\n                  amp-story-grid-layer.grid-layer {\n                    margin-top: calc((100% \/ 0.5625 - 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(2 * 74px));\n              }<\/p>\n<p>              .captions-area {\n                padding: 0 32px 0;\n              }<\/p>\n<p>              amp-story-captions {\n                margin-bottom: 16px;\n                text-align: center;\n              }\n              <\/style>\n<p><meta name=\"web-stories-replace-head-start\"\/><title> SQL Interview Questions for Data Analysts<br \/>\n<\/title><link rel=\"canonical\" href=\"https:\/\/pickl.ai\/blog\/?post_type=web-story&amp;p=5976\"\/><meta name=\"web-stories-replace-head-end\"\/><\/head><body><amp-story standalone=\"\" publisher=\"Pickl.AI\" publisher-logo-src=\"https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2022\/01\/cropped-cropped-favicon.png\" title=\" SQL Interview Questions for Data Analysts\n\" poster-portrait-src=\"https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/02\/cropped-Blue-Economic-statistic-Abstract-Shape-Business-Book-Cover-2.png\"><amp-story-page id=\"4c46f32a-3eec-4ecb-b2bd-7047f1683966\" auto-advance-after=\"7s\"><amp-story-grid-layer template=\"vertical\" aspect-ratio=\"412:618\" class=\"grid-layer\"><\/p>\n<div class=\"page-fullbleed-area\" style=\"background-color:#2b2b6c\">\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-77cdba79-cf41-4a49-89c4-c59d36887eba\">\n<div style=\"position:absolute;width:111.40741%;height:100%;left:-5.7037%;top:0%\" data-leaf-element=\"true\"><amp-img layout=\"fill\" src=\"https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/02\/Blue-Economic-statistic-Abstract-Shape-Business-Book-Cover-2.png\" alt=\"Blue Economic statistic Abstract Shape Business Book Cover (2)\" srcSet=\"https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/02\/Blue-Economic-statistic-Abstract-Shape-Business-Book-Cover-2.png 1410w,https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/02\/Blue-Economic-statistic-Abstract-Shape-Business-Book-Cover-2-1283x2048.png 1283w,https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/02\/Blue-Economic-statistic-Abstract-Shape-Business-Book-Cover-2-963x1536.png 963w,https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/02\/Blue-Economic-statistic-Abstract-Shape-Business-Book-Cover-2-768x1226.png 768w,https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/02\/Blue-Economic-statistic-Abstract-Shape-Business-Book-Cover-2-642x1024.png 642w,https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/02\/Blue-Economic-statistic-Abstract-Shape-Business-Book-Cover-2-188x300.png 188w,https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/02\/Blue-Economic-statistic-Abstract-Shape-Business-Book-Cover-2-150x239.png 150w\" sizes=\"(min-width: 1024px) 47vh, 104vw\" 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\"><\/div>\n<\/div>\n<p><\/amp-story-grid-layer><\/amp-story-page><amp-story-page id=\"820c5743-640b-41b7-8ce5-139c9a6d2a72\" auto-advance-after=\"7s\"><amp-story-grid-layer template=\"vertical\" aspect-ratio=\"412:618\" class=\"grid-layer\"><\/p>\n<div class=\"page-fullbleed-area\" style=\"background-color:#fff\">\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-b4599a32-3dde-4ff8-aeeb-1a72782777c6\">\n<div class=\"fill\" style=\"will-change:transform\"><\/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:calc(0% - 2px);top:calc(1.45631% - 2px);width:calc(100% + 4px);height:calc(17.63754% + 4px);opacity:1\">\n<div style=\"top:0;left:0;right:0;bottom:0;width:100%;height:100%;position:absolute;border-width:2px 2px 2px 2px;border-color:rgba(255,71,126,1);border-style:solid;pointer-events:initial;display:block;z-index:0\" class=\"mask\" id=\"el-e5d62129-819e-4542-9e4e-1f12b6ec5904\">\n<div class=\"fill\" style=\"background-color:rgba(255,136,153,0.5);will-change:transform\"><\/div>\n<\/div>\n<\/div>\n<div style=\"position:absolute;pointer-events:none;left:11.8932%;top:22.65372%;width:76.45631%;height:32.8479%;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-987c64f0-c18f-446b-93c1-6a34a6d3bbdf\">\n<div style=\"position:absolute;width:116.01814%;height:100%;left:-8.00907%;top:0%\" data-leaf-element=\"true\"><amp-img layout=\"fill\" src=\"https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/02\/6554783-scaled.jpg\" alt=\"\" srcSet=\"https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/02\/6554783-scaled.jpg 2560w,https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/02\/6554783-2048x1138.jpg 2048w,https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/02\/6554783-1536x853.jpg 1536w,https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/02\/6554783-1024x569.jpg 1024w,https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/02\/6554783-768x427.jpg 768w,https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/02\/6554783-300x167.jpg 300w,https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/02\/6554783-150x83.jpg 150w\" sizes=\"(min-width: 1024px) 34vh, 76vw\" disable-inline-width=\"true\"><\/amp-img><\/div>\n<\/div>\n<\/div>\n<div style=\"position:absolute;pointer-events:none;left:16.50485%;top:5.17799%;width:70.87379%;height:10.19417%;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:0.684931506849315% 0.684931506849315% 0.684931506849315% 0.684931506849315% \/ 3.1746031746031744% 3.1746031746031744% 3.1746031746031744% 3.1746031746031744%\" id=\"el-d593edc8-345a-43e6-a2fa-d75dce623ba9\">\n<h1 id=\"what-is-sql\" class=\"fill text-wrapper\" style=\"white-space:pre-line;overflow-wrap:break-word;word-break:break-word;margin:0.9452054794520554% 0;font-family:&quot;EB Garamond&quot;,serif;font-size:0.776699em;line-height:1.19;text-align:left;padding:0;color:#000000\"><span><span style=\"font-weight: 700; color: #3341b0\">What is SQL?<\/span><\/span><\/h1>\n<\/div>\n<\/div>\n<div style=\"position:absolute;pointer-events:none;left:20.87379%;top:60.5178%;width:67.47573%;height:30.09709%;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:0.7194244604316548% 0.7194244604316548% 0.7194244604316548% 0.7194244604316548% \/ 1.0752688172043012% 1.0752688172043012% 1.0752688172043012% 1.0752688172043012%\" id=\"el-6bb3c1eb-a30e-4fe0-84f9-06626580cfc8\">\n<h3 id=\"this-foundational-question-aims-to-gauge-your-understanding-of-sql-be-prepared-to-explain-sqls-purpose-its-role-in-querying-databases-and-its-importance-in-data-analysis\" class=\"fill text-wrapper\" style=\"white-space:pre-line;overflow-wrap:break-word;word-break:break-word;margin:0.6080935251798562% 0;font-family:&quot;Alegreya&quot;,serif;font-size:0.339806em;line-height:1.2;text-align:left;padding:0;color:#000000\"><span><span style=\"font-weight: 700\">This foundational question aims to gauge your understanding of SQL. Be prepared to explain SQL&#8217;s purpose, its role in querying databases, and its importance in data analysis.<\/span><\/span><\/h3>\n<\/div>\n<\/div>\n<div style=\"position:absolute;pointer-events:none;left:32.28155%;top:94.82201%;width:39.56311%;height:5.01618%;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:1.2269938650306749% 1.2269938650306749% 1.2269938650306749% 1.2269938650306749% \/ 6.451612903225806% 6.451612903225806% 6.451612903225806% 6.451612903225806%\" id=\"el-bffbe276-706d-4e18-8fc1-9d29bc115fac\"><a href=\"https:\/\/pickl.ai\/blog\/sql-interview-questions-for-data-analyst\/ \" data-tooltip-icon=\"https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2023\/02\/blog50.jpg\" data-tooltip-text=\"SQL Interview Questions for Data Analyst 2023 - Pickl.AI\" target=\"_blank\" rel=\"noreferrer noopener\" style=\"width:100%;height:100%;display:block;position:absolute;top:0;left:0\"><\/p>\n<h2 id=\"learn-more\" class=\"fill text-wrapper\" style=\"white-space:pre-line;overflow-wrap:break-word;word-break:break-word;margin:-0.23293711656441674% 0;font-family:&quot;Roboto&quot;,&quot;Helvetica Neue&quot;,&quot;Helvetica&quot;,sans-serif;font-size:0.436893em;line-height:1.2;text-align:left;padding:0;color:#000000\"><span><span style=\"font-weight: 700\">Learn More&nbsp;<\/span><\/span><\/h2>\n<p><\/a><\/div>\n<\/div>\n<div style=\"position:absolute;pointer-events:none;left:75.48544%;top:100.48544%;width:14.56311%;height:5.01618%;opacity:1\">\n<div style=\"pointer-events:initial;width:100%;height:100%;display:block;position:absolute;top:0;left:0;z-index:0\" id=\"el-da29ee9b-e260-4237-b473-938576a679bd\"><svg style=\"display:block;position:absolute;top:0;height:100%;width:auto\" viewBox=\"0 0 16 9\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><title>Arrow<\/title><path d=\"M15.8206 4.43678c.2145-.21453.2145-.56235 0-.77688L12.3246.163967c-.2145-.2145284-.5623-.2145284-.7769 0-.2145.214528-.2145.562346 0 .776874l3.1075 3.107499-3.1075 3.1075c-.2145.21453-.2145.56235 0 .77687.2146.21453.5624.21453.7769 0l3.496-3.49593zM.0507812 4.59767H15.4321V3.49901H.0507812v1.09866z\" fill=\"#212121\"><\/path><\/svg><\/div>\n<\/div>\n<\/div>\n<\/div>\n<p><\/amp-story-grid-layer><\/amp-story-page><amp-story-page id=\"1223f71c-03cc-40a5-8ede-b42c2484b9b4\" auto-advance-after=\"7s\"><amp-story-grid-layer template=\"vertical\" aspect-ratio=\"412:618\" class=\"grid-layer\"><\/p>\n<div class=\"page-fullbleed-area\" style=\"background-color:#fff\">\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-ede1d3d1-58f0-4604-ac7c-dc42f24874b4\">\n<div class=\"fill\" style=\"will-change:transform\"><\/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:calc(0% - 2px);top:calc(-0.48544% - 2px);width:calc(100% + 4px);height:calc(25.40453% + 4px);opacity:1\">\n<div style=\"top:0;left:0;right:0;bottom:0;width:100%;height:100%;position:absolute;border-width:2px 2px 2px 2px;border-color:rgba(219,202,9,1);border-style:solid;pointer-events:initial;display:block;z-index:0\" class=\"mask\" id=\"el-82515109-5b69-47c8-aa88-c722db0973bb\">\n<div class=\"fill\" style=\"background-color:#fdee85;will-change:transform\"><\/div>\n<\/div>\n<\/div>\n<div style=\"position:absolute;pointer-events:none;left:17.71845%;top:2.91262%;width:72.3301%;height:20.87379%;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:0.6711409395973155% 0.6711409395973155% 0.6711409395973155% 0.6711409395973155% \/ 1.550387596899225% 1.550387596899225% 1.550387596899225% 1.550387596899225%\" id=\"el-455bd971-d549-408d-b9d2-594a19026c2d\">\n<h3 id=\"what-are-the-differences-between-sqls-select-insert-update-and-delete-statements\" class=\"fill text-wrapper\" style=\"white-space:pre-line;overflow-wrap:break-word;word-break:break-word;margin:0.5016778523489935% 0;font-family:&quot;EB Garamond&quot;,serif;font-size:0.420712em;line-height:1.19;text-align:left;padding:0;color:#000000\"><span><span style=\"font-weight: 700; color: #131516\">What are the differences between SQL&#8217;s SELECT, INSERT, UPDATE, and DELETE statements?<\/span><\/span><\/h3>\n<\/div>\n<\/div>\n<div style=\"position:absolute;pointer-events:none;left:21.1165%;top:28.9644%;width:57.52427%;height:24.59547%;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:0.8438818565400843% 0.8438818565400843% 0.8438818565400843% 0.8438818565400843% \/ 1.3157894736842104% 1.3157894736842104% 1.3157894736842104% 1.3157894736842104%\" id=\"el-624325cd-c76b-4ac9-a0d7-72e4b0c0556c\">\n<p class=\"fill text-wrapper\" style=\"white-space:pre-line;overflow-wrap:break-word;word-break:break-word;margin:0.5774261603375531% 0;font-family:&quot;Alegreya&quot;,serif;font-size:0.275081em;line-height:1.2;text-align:center;padding:0;color:#000000\"><span><span style=\"font-weight: 700\">Understanding the distinctions between these essential SQL commands is crucial. Be ready to discuss their purposes and syntax, as well as when to use each statement in data manipulation.<\/span><\/span><\/p>\n<\/div>\n<\/div>\n<div style=\"position:absolute;pointer-events:none;left:13.59223%;top:64.07767%;width:72.3301%;height:35.11327%;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-8622d999-1cdf-4588-bdc1-37d89746b8a4\">\n<div style=\"position:absolute;width:100%;height:137.32719%;left:0%;top:-18.66359%\" data-leaf-element=\"true\"><amp-img layout=\"fill\" src=\"https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/02\/cloud-server-illustration-cloud-computing-technology-concept-dark-background-data-concept-generative-ai.jpg\" alt=\"\"><\/amp-img><\/div>\n<\/div>\n<\/div>\n<div style=\"position:absolute;pointer-events:none;left:75.48544%;top:100.48544%;width:14.56311%;height:5.01618%;opacity:1\">\n<div style=\"pointer-events:initial;width:100%;height:100%;display:block;position:absolute;top:0;left:0;z-index:0\" id=\"el-03e0a0c7-54de-410c-9c8d-6de82d2a3111\"><svg style=\"display:block;position:absolute;top:0;height:100%;width:auto\" viewBox=\"0 0 16 9\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><title>Arrow<\/title><path d=\"M15.8206 4.43678c.2145-.21453.2145-.56235 0-.77688L12.3246.163967c-.2145-.2145284-.5623-.2145284-.7769 0-.2145.214528-.2145.562346 0 .776874l3.1075 3.107499-3.1075 3.1075c-.2145.21453-.2145.56235 0 .77687.2146.21453.5624.21453.7769 0l3.496-3.49593zM.0507812 4.59767H15.4321V3.49901H.0507812v1.09866z\" fill=\"#212121\"><\/path><\/svg><\/div>\n<\/div>\n<div style=\"position:absolute;pointer-events:none;left:34.95146%;top:56.31068%;width:38.1068%;height:5.01618%;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:1.2738853503184715% 1.2738853503184715% 1.2738853503184715% 1.2738853503184715% \/ 6.451612903225806% 6.451612903225806% 6.451612903225806% 6.451612903225806%\" id=\"el-5cbc3ec6-0d7c-4137-9967-8390bcb2befd\"><a href=\"https:\/\/pickl.ai\/blog\/overview-of-row_number-function-in-sql\/\" data-tooltip-icon=\"https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2023\/09\/row_number-function-in-sql.jpg\" data-tooltip-text=\"Overview of ROW_NUMBER Function in SQL - Pickl.AI\" target=\"_blank\" rel=\"noreferrer noopener\" style=\"width:100%;height:100%;display:block;position:absolute;top:0;left:0\"><\/p>\n<h2 id=\"learn-more-2\" class=\"fill text-wrapper\" style=\"white-space:pre-line;overflow-wrap:break-word;word-break:break-word;margin:-0.24183917197452184% 0;font-family:&quot;Roboto&quot;,&quot;Helvetica Neue&quot;,&quot;Helvetica&quot;,sans-serif;font-size:0.436893em;line-height:1.2;text-align:left;padding:0;color:#000000\"><span><span style=\"font-weight: 700\">Learn More&nbsp;<\/span><\/span><\/h2>\n<p><\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n<p><\/amp-story-grid-layer><\/amp-story-page><amp-story-page id=\"7a28c994-e67f-4729-8e06-1a6481579156\" auto-advance-after=\"7s\"><amp-story-grid-layer template=\"vertical\" aspect-ratio=\"412:618\" class=\"grid-layer\"><\/p>\n<div class=\"page-fullbleed-area\" style=\"background-color:#fff\">\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-7432420c-0998-45fd-b07c-4e90f0a541b9\">\n<div class=\"fill\" style=\"will-change:transform\"><\/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:calc(0% - 3px);top:calc(44.01294% - 3px);width:calc(100% + 6px);height:calc(25.08091% + 6px);opacity:1\">\n<div style=\"top:0;left:0;right:0;bottom:0;width:100%;height:100%;position:absolute;border-width:3px 3px 3px 3px;border-color:rgba(7,121,189,1);border-style:solid;pointer-events:initial;display:block;z-index:0\" class=\"mask\" id=\"el-051ad956-66a0-4c73-bfdf-e14b7f990fb8\">\n<div class=\"fill\" style=\"background-color:rgba(3,7,39,0.2);will-change:transform\"><\/div>\n<\/div>\n<\/div>\n<div style=\"position:absolute;pointer-events:none;left:18.20388%;top:46.60194%;width:70.14563%;height:19.41748%;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:0.6920415224913495% 0.6920415224913495% 0.6920415224913495% 0.6920415224913495% \/ 1.6666666666666667% 1.6666666666666667% 1.6666666666666667% 1.6666666666666667%\" id=\"el-7ca94929-12c4-4c96-9244-4aaa35560652\">\n<h3 id=\"explain-the-difference-between-inner-join-left-join-right-join-and-full-join\" class=\"fill text-wrapper\" style=\"white-space:pre-line;overflow-wrap:break-word;word-break:break-word;margin:0.47750865051903146% 0;font-family:&quot;EB Garamond&quot;,serif;font-size:0.388350em;line-height:1.19;text-align:left;padding:0;color:#000000\"><span><span style=\"font-weight: 700\">Explain the difference between INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN.<\/span><\/span><\/h3>\n<\/div>\n<\/div>\n<div style=\"position:absolute;pointer-events:none;left:17.96117%;top:75.88997%;width:65.29126%;height:18.93204%;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:0.7434944237918215% 0.7434944237918215% 0.7434944237918215% 0.7434944237918215% \/ 1.7094017094017095% 1.7094017094017095% 1.7094017094017095% 1.7094017094017095%\" id=\"el-3cd9d07c-bdb9-4db1-a2b0-6e681f5435dc\">\n<p class=\"fill text-wrapper\" style=\"white-space:pre-line;overflow-wrap:break-word;word-break:break-word;margin:0.5685873605947951% 0;font-family:&quot;Alegreya&quot;,serif;font-size:0.307443em;line-height:1.2;text-align:left;padding:0;color:#000000\"><span><span style=\"font-weight: 700\">Join operations are fundamental in combining data from multiple tables. Familiarize yourself with the various types of joins and their implications for result sets.<\/span><\/span><\/p>\n<\/div>\n<\/div>\n<div style=\"position:absolute;pointer-events:none;left:16.01942%;top:-3.8835%;width:67.47573%;height:45.79288%;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-3210d058-4d46-4ad2-a33b-e78434d66bcb\">\n<div style=\"position:absolute;width:101.79856%;height:100%;left:-0.89928%;top:0%\" data-leaf-element=\"true\"><amp-img layout=\"fill\" src=\"https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/02\/5700e162-0da3-46da-bda5-8e520643a40b.jpg\" alt=\"\"><\/amp-img><\/div>\n<\/div>\n<\/div>\n<div style=\"position:absolute;pointer-events:none;left:75.48544%;top:100.48544%;width:14.56311%;height:5.01618%;opacity:1\">\n<div style=\"pointer-events:initial;width:100%;height:100%;display:block;position:absolute;top:0;left:0;z-index:0\" id=\"el-b9ae4ed6-b2c9-47bb-b242-7f5fe46d911b\"><svg style=\"display:block;position:absolute;top:0;height:100%;width:auto\" viewBox=\"0 0 16 9\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><title>Arrow<\/title><path d=\"M15.8206 4.43678c.2145-.21453.2145-.56235 0-.77688L12.3246.163967c-.2145-.2145284-.5623-.2145284-.7769 0-.2145.214528-.2145.562346 0 .776874l3.1075 3.107499-3.1075 3.1075c-.2145.21453-.2145.56235 0 .77687.2146.21453.5624.21453.7769 0l3.496-3.49593zM.0507812 4.59767H15.4321V3.49901H.0507812v1.09866z\" fill=\"#212121\"><\/path><\/svg><\/div>\n<\/div>\n<div style=\"position:absolute;pointer-events:none;left:29.36893%;top:97.411%;width:42.47573%;height:5.01618%;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:1.1428571428571428% 1.1428571428571428% 1.1428571428571428% 1.1428571428571428% \/ 6.451612903225806% 6.451612903225806% 6.451612903225806% 6.451612903225806%\" id=\"el-9aab19d3-6e77-48f8-8b17-783dae53d9da\"><a href=\"https:\/\/ https:\/\/pickl.ai\/blog\/sql-tips-and-tricks-for-data-analysts\/\" target=\"_blank\" rel=\"noreferrer noopener\" style=\"width:100%;height:100%;display:block;position:absolute;top:0;left:0\"><\/p>\n<h2 id=\"learn-more-3\" class=\"fill text-wrapper\" style=\"white-space:pre-line;overflow-wrap:break-word;word-break:break-word;margin:-0.2169642857142853% 0;font-family:&quot;Roboto&quot;,&quot;Helvetica Neue&quot;,&quot;Helvetica&quot;,sans-serif;font-size:0.436893em;line-height:1.2;text-align:left;padding:0;color:#000000\"><span><span style=\"font-weight: 700\">Learn More&nbsp;<\/span><\/span><\/h2>\n<p><\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n<p><\/amp-story-grid-layer><\/amp-story-page><amp-story-page id=\"bfb328cd-ca0e-4494-bc0d-2f8411d69619\" auto-advance-after=\"7s\"><amp-story-grid-layer template=\"vertical\" aspect-ratio=\"412:618\" class=\"grid-layer\"><\/p>\n<div class=\"page-fullbleed-area\" style=\"background-color:#fff\">\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-f7e48603-e21c-4cb9-b354-edb703ec506f\">\n<div class=\"fill\" style=\"will-change:transform\"><\/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:calc(2.18447% - 3px);top:calc(5.50162% - 3px);width:calc(95.87379% + 6px);height:calc(22.65372% + 6px);opacity:1\">\n<div style=\"top:0;left:0;right:0;bottom:0;width:100%;height:100%;position:absolute;border-width:3px 3px 3px 3px;border-color:rgba(224,110,4,1);border-style:solid;pointer-events:initial;display:block;z-index:0\" class=\"mask\" id=\"el-393ab3f0-9963-409d-a89c-a0bb3739bcc0\">\n<div class=\"fill\" style=\"background-color:rgba(234,125,0,0.5);will-change:transform\"><\/div>\n<\/div>\n<\/div>\n<div style=\"position:absolute;pointer-events:none;left:16.50485%;top:8.41424%;width:72.81553%;height:16.66667%;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:0.6666666666666667% 0.6666666666666667% 0.6666666666666667% 0.6666666666666667% \/ 1.9417475728155338% 1.9417475728155338% 1.9417475728155338% 1.9417475728155338%\" id=\"el-46823780-4c8d-462b-a6a4-20f521523f82\">\n<h2 id=\"what-is-the-difference-between-group-by-and-order-by-clauses\" class=\"fill text-wrapper\" style=\"white-space:pre-line;overflow-wrap:break-word;word-break:break-word;margin:0.5366666666666664% 0;font-family:&quot;EB Garamond&quot;,serif;font-size:0.453074em;line-height:1.19;text-align:left;padding:0;color:#000000\"><span><span style=\"font-weight: 700\">What is the difference between GROUP BY and ORDER BY clauses?<\/span><\/span><\/h2>\n<\/div>\n<\/div>\n<div style=\"position:absolute;pointer-events:none;left:17.47573%;top:68.28479%;width:65.29126%;height:22.65372%;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:0.7434944237918215% 0.7434944237918215% 0.7434944237918215% 0.7434944237918215% \/ 1.4285714285714286% 1.4285714285714286% 1.4285714285714286% 1.4285714285714286%\" id=\"el-90504535-6f5b-4209-b900-b201563ab4b5\">\n<p class=\"fill text-wrapper\" style=\"white-space:pre-line;overflow-wrap:break-word;word-break:break-word;margin:0.5685873605947951% 0;font-family:&quot;Alegreya&quot;,serif;font-size:0.307443em;line-height:1.2;text-align:left;padding:0;color:#000000\"><span><span style=\"font-weight: 700\">Both GROUP BY and ORDER BY are used to organize data, but they serve distinct purposes. Understand how these clauses function and when to apply them in SQL queries.<\/span><\/span><\/p>\n<\/div>\n<\/div>\n<div style=\"position:absolute;pointer-events:none;left:11.16505%;top:34.62783%;width:77.18447%;height:28.64078%;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-3ed2c90e-1c9e-4dfd-a5ed-652178a717f4\">\n<div style=\"position:absolute;width:100%;height:102.67346%;left:0%;top:-1.33673%\" data-leaf-element=\"true\"><amp-img layout=\"fill\" src=\"https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/02\/hand-holding-server-data-center-icon-web-hosting-servers-background-scaled.jpg\" alt=\"\" srcSet=\"https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/02\/hand-holding-server-data-center-icon-web-hosting-servers-background-scaled.jpg 2560w,https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/02\/hand-holding-server-data-center-icon-web-hosting-servers-background-1536x878.jpg 1536w,https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/02\/hand-holding-server-data-center-icon-web-hosting-servers-background-1024x585.jpg 1024w,https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/02\/hand-holding-server-data-center-icon-web-hosting-servers-background-768x439.jpg 768w,https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/02\/hand-holding-server-data-center-icon-web-hosting-servers-background-300x171.jpg 300w\" sizes=\"(min-width: 1024px) 35vh, 77vw\" disable-inline-width=\"true\"><\/amp-img><\/div>\n<\/div>\n<\/div>\n<div style=\"position:absolute;pointer-events:none;left:75.48544%;top:100.48544%;width:14.56311%;height:5.01618%;opacity:1\">\n<div style=\"pointer-events:initial;width:100%;height:100%;display:block;position:absolute;top:0;left:0;z-index:0\" id=\"el-47f71c84-4323-400f-914e-19a1ab3b9854\"><svg style=\"display:block;position:absolute;top:0;height:100%;width:auto\" viewBox=\"0 0 16 9\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><title>Arrow<\/title><path d=\"M15.8206 4.43678c.2145-.21453.2145-.56235 0-.77688L12.3246.163967c-.2145-.2145284-.5623-.2145284-.7769 0-.2145.214528-.2145.562346 0 .776874l3.1075 3.107499-3.1075 3.1075c-.2145.21453-.2145.56235 0 .77687.2146.21453.5624.21453.7769 0l3.496-3.49593zM.0507812 4.59767H15.4321V3.49901H.0507812v1.09866z\" fill=\"#212121\"><\/path><\/svg><\/div>\n<\/div>\n<div style=\"position:absolute;pointer-events:none;left:28.64078%;top:95.30744%;width:42.47573%;height:5.17799%;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:1.1428571428571428% 1.1428571428571428% 1.1428571428571428% 1.1428571428571428% \/ 6.25% 6.25% 6.25% 6.25%\" id=\"el-0f62ce26-dd23-4e39-acf0-0d06197f2ccd\"><a href=\"https:\/\/pickl.ai\/blog\/why-sql-is-important-for-data-analyst\/\" target=\"_blank\" rel=\"noreferrer noopener\" style=\"width:100%;height:100%;display:block;position:absolute;top:0;left:0\"><\/p>\n<h2 id=\"learn-more-4\" class=\"fill text-wrapper\" style=\"white-space:pre-line;overflow-wrap:break-word;word-break:break-word;margin:-0.2169642857142853% 0;font-family:&quot;Roboto&quot;,&quot;Helvetica Neue&quot;,&quot;Helvetica&quot;,sans-serif;font-size:0.436893em;line-height:1.2;text-align:left;padding:0;color:#000000\"><span><span style=\"font-weight: 700\">Learn More&nbsp;<\/span><\/span><\/h2>\n<p><\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n<p><\/amp-story-grid-layer><\/amp-story-page><amp-story-page id=\"ba6ed36d-9a3c-48e1-bd7e-70eabfc5a530\" auto-advance-after=\"7s\"><amp-story-grid-layer template=\"vertical\" aspect-ratio=\"412:618\" class=\"grid-layer\"><\/p>\n<div class=\"page-fullbleed-area\" style=\"background-color:#fff\">\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-12bd392c-5ade-40e5-b860-a113b7d70962\">\n<div class=\"fill\" style=\"will-change:transform\"><\/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:calc(2.18447% - 3px);top:calc(5.50162% - 3px);width:calc(95.87379% + 6px);height:calc(22.65372% + 6px);opacity:1\">\n<div style=\"top:0;left:0;right:0;bottom:0;width:100%;height:100%;position:absolute;border-width:3px 3px 3px 3px;border-color:rgba(96,56,9,1);border-style:solid;pointer-events:initial;display:block;z-index:0\" class=\"mask\" id=\"el-61fc9857-9ae6-4add-84f2-31b964cb8fe4\">\n<div class=\"fill\" style=\"background-color:#bc8a5f;will-change:transform\"><\/div>\n<\/div>\n<\/div>\n<div style=\"position:absolute;pointer-events:none;left:16.01942%;top:10.19417%;width:72.3301%;height:19.41748%;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:0.6711409395973155% 0.6711409395973155% 0.6711409395973155% 0.6711409395973155% \/ 1.6666666666666667% 1.6666666666666667% 1.6666666666666667% 1.6666666666666667%\" id=\"el-80759b3b-7dbc-47cc-91ca-992346b50a44\">\n<h2 id=\"how-do-you-handle-null-values-in-sql\" class=\"fill text-wrapper\" style=\"white-space:pre-line;overflow-wrap:break-word;word-break:break-word;margin:0.6174496644295302% 0;font-family:&quot;EB Garamond&quot;,serif;font-size:0.517799em;line-height:1.19;text-align:left;padding:0;color:#000000\"><span><span style=\"font-weight: 700\">How do you handle NULL values in SQL?<\/span><\/span><\/h2>\n<\/div>\n<\/div>\n<div style=\"position:absolute;pointer-events:none;left:21.60194%;top:33.00971%;width:66.74757%;height:23.6246%;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:0.7272727272727273% 0.7272727272727273% 0.7272727272727273% 0.7272727272727273% \/ 1.36986301369863% 1.36986301369863% 1.36986301369863% 1.36986301369863%\" id=\"el-898b3cd8-4652-43cd-a0b3-fb32516d9a9f\">\n<p class=\"fill text-wrapper\" style=\"white-space:pre-line;overflow-wrap:break-word;word-break:break-word;margin:0.5561818181818178% 0;font-family:&quot;Alegreya&quot;,serif;font-size:0.307443em;line-height:1.2;text-align:left;padding:0;color:#000000\"><span><span style=\"font-weight: 700\">NULL values can present challenges in data analysis. Be prepared to discuss techniques for handling NULL values, including IS NULL, IS NOT NULL, and COALESCE.<\/span><\/span><\/p>\n<\/div>\n<\/div>\n<div style=\"position:absolute;pointer-events:none;left:15.53398%;top:68.28479%;width:68.68932%;height:34.78964%;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-9fe96c86-712c-48d9-b114-c0b0984dccf3\">\n<div style=\"position:absolute;width:100%;height:131.62792%;left:0%;top:-15.81396%\" data-leaf-element=\"true\"><amp-img layout=\"fill\" src=\"https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2024\/02\/computer-screen-with-cloud-it.jpg\" alt=\"\"><\/amp-img><\/div>\n<\/div>\n<\/div>\n<div style=\"position:absolute;pointer-events:none;left:33.73786%;top:58.25243%;width:42.47573%;height:5.17799%;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:1.1428571428571428% 1.1428571428571428% 1.1428571428571428% 1.1428571428571428% \/ 6.25% 6.25% 6.25% 6.25%\" id=\"el-5795e0f9-e541-4a8e-bc46-26015afe0cdc\"><a href=\"https:\/\/pickl.ai\/blog\/best-books-for-sql\/\" data-tooltip-icon=\"https:\/\/pickl.ai\/blog\/wp-content\/uploads\/2023\/02\/8-Best-Books-for-SQL.jpg\" data-tooltip-text=\"8 Best Books for SQL [Beginners and Advanced Learners] - Pickl.AI\" target=\"_blank\" rel=\"noreferrer noopener\" style=\"width:100%;height:100%;display:block;position:absolute;top:0;left:0\"><\/p>\n<h2 id=\"learn-more-5\" class=\"fill text-wrapper\" style=\"white-space:pre-line;overflow-wrap:break-word;word-break:break-word;margin:-0.2169642857142853% 0;font-family:&quot;Roboto&quot;,&quot;Helvetica Neue&quot;,&quot;Helvetica&quot;,sans-serif;font-size:0.436893em;line-height:1.2;text-align:left;padding:0;color:#000000\"><span><span style=\"font-weight: 700\">Learn More&nbsp;<\/span><\/span><\/h2>\n<p><\/a><\/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":"Preparing for SQL interview questions to improve your data science skills, including example questions and a methodology for addressing them. SQL is a very important tool in the armoury of data scient\n","protected":false},"author":1,"featured_media":5985,"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-5976","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 v27.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>SQL Interview Questions for Data Analysts - Pickl.AI<\/title>\n<meta name=\"description\" content=\"Preparing for SQL interview questions to improve your data science skills, including example questions and a methodology for addressing them. 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