A database composite index or multi-column index is an
index
Index (: indexes or indices) may refer to:
Arts, entertainment, and media Fictional entities
* Index (''A Certain Magical Index''), a character in the light novel series ''A Certain Magical Index''
* The Index, an item on the Halo Array in the ...
that is based on several columns.
References
Databases
Database index techniques
Database management systems
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