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What is 13.SQLServer Constraints about?

SQL Server constraints are rules that ensure data integrity by restricting the values that can be inserted, updated, or deleted in a table. Common types of constraints include Not Null, Check, Default, Unique, Primary Key, and Foreign Key, each serving specific purposes to maintain data consistency and enforce business rules. Constraints can be defined during table creation or added to existing tables using ALTER TABLE statements.

Author

ramvelampudi2002

Language

EN