6 Powerful Benefits of SQL Indexes: Supercharge Your Database Performance and Query Efficiency

An SQL index is a data structure, usually a data tree (or other hash indexes or bitmap indexes), that helps the database management system (DBMS) to identify rows with individual column values quickly

A unique index guarantees that all values in the indexed column(s) are unique

The clustered index is when the physical arrangement of data rows from the particular table

A non-clustered index is a separate data structure that contains references to the table rows

Contrary to the clustered indexes, while non-clustered indexes don’t affect the arrangement of the table data in the files

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