May 2020
Beginner
564 pages
14h 9m
English
Content preview from Learn SQL Database Programming
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Understanding data integrity
Data integrity refers to the consistency and accuracy of the data. It is typically enforced by the procedures and guidelines in the database design phase. In RDMS, keys enforce data integrity. A key is user-defined and forces values in a table to conform to a specified standard. This standard will allow only certain kinds of values to be in the database.
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