Sql Programming Tutorials, Guides & Best Practices
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Understanding and Using MySQL Indexes
Indexes are data structures that improve the speed of data retrieval operations on a database table. They are similar to the index in a book, which allows you to quickly find specific topics without scanning every page. In MySQL, indexes can be applied to columns to speed up queries involving those columns.
Indexes can be created when a table is first created or added later using the CREATE INDEX statement.