December 2013
Intermediate to advanced
1872 pages
153h 31m
English
book
Microsoft® SQL Server 2012 Unleashed
by Ray Rankins, Paul T. Bertucci, Chris Gallelli, Alex T. Silverstein
Content preview from Microsoft® SQL Server 2012 Unleashed
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Implementing Declarative Data Integrity
Declarative integrity is enforced within the database, using constraints, rules, and defaults. This is the preferred method of enforcing integrity because it has low overhead and requires little or no custom programming. It can be centrally managed in the database, and it provides a consistent approach for ensuring the integrity of data.