SQL index overview and strategy - SQL Shack
https://www.sqlshack.com/sql-index-overview-and-strategy/
WebNov 27, 2018 · A SQL index is used to retrieve data from a database very fast. Indexing a table or view is, without a doubt, one of the best ways to improve the performance of queries and applications. A SQL index is a quick lookup table for finding records users need to search frequently. An index is small, fast, and optimized for quick lookups.
DA: 87 PA: 8 MOZ Rank: 25