Master Indexing in DBMS: Types, Benefits & Optimization

What is Indexing in DBMS?

Indexing is a technique that optimizes data retrieval by minimizing disk access during database queries.

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It enhances performance, allowing faster searches and efficient management of large datasets in databases.

Importance of Indexing

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Common types include Primary, Secondary, Clustered, and Non-Clustered indexes, each serving different purposes.

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Types of Indexes

A primary index is built on a unique key, ensuring fast access to records by maintaining sorted order.

Primary Index

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Dense vs. Sparse Indexing

Dense indexing stores an index record for every search key, while sparse indexing stores records for some keys, saving space.

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Clustering Index

A clustering index organizes data based on non-key fields, optimizing retrieval for range queries and related data.

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Clustering Index

- Benefits of Indexing - Reduces query time significantly - Improves database performance - Enhances user experience

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