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May 2, 2026 · 1 min read

Can you explain what a database index is and how it can improve performance in query execution?

A database index is a data structure that improves the speed of data retrieval operations on a database table. It works like a book index, allowing the database to find…

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📅 May 02, 2026 ⏱ 1 min read

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Can you explain what a database index is and how it can improve performance in query execution?

COVER // CAN YOU EXPLAIN WHAT A DATABASE INDEX IS AND HOW IT CAN IMPROVE PERFORMANCE IN QUERY EXECUTION?

A database index is a data structure that improves the speed of data retrieval operations on a database table. It works like a book index, allowing the database to find data without scanning the entire table, which significantly enhances query performance.

database indexing performance sql

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