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What is indexing in database with example 2024?

Harper Gray | 2023-05-07 11:23:36 | page views：1534
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Scarlett Lee

Studied at the University of Vienna, Lives in Vienna, Austria.
An index is a copy of selected columns of data from a table that can be searched very efficiently that also includes a low-level disk block address or direct link to the complete row of data it was copied from. Some databases extend the power of indexing by letting developers create indexes on functions or expressions.
2023-05-07 11:23:36
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Gabriel Hughes

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An index is a copy of selected columns of data from a table that can be searched very efficiently that also includes a low-level disk block address or direct link to the complete row of data it was copied from. Some databases extend the power of indexing by letting developers create indexes on functions or expressions.
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