February 2018
Intermediate to advanced
510 pages
16h 10m
English
Content preview from MySQL 8 Administrator???s Guide
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Compound index
If a query is supposed to refer to multiple columns of a table, a composite index for such columns might be helpful. A compound index refers the columns from the results set by the first column, second column, and so on.
The order of columns plays a significant role in the performance of the query, so while designing the table structure and index, you need to use it effectively.
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