May 2020
Beginner
564 pages
14h 9m
English
Content preview from Learn SQL Database Programming
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Understanding how indexing relates to data integrity
Whenever you create a primary key, unique constraint, or foreign key, MySQL stores them as indexes. These indexes will be directly related to data integrity since they are related to keys and constraints that ensure data integrity. Not all indexes relate to data integrity, but the indexes created as part of primary keys, foreign keys, and unique constraints do.
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