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What is SQL Constraints Explained with Examples about?

This document discusses different types of constraints in SQL including NOT NULL, UNIQUE, PRIMARY KEY, FOREIGN KEY, CHECK, and DEFAULT. It provides examples of how each constraint is defined and used to limit the type of data that can be inserted into tables and enforce referential integrity between tables. Specific examples demonstrate defining primary keys, foreign keys linking two tables, and using the CHECK and DEFAULT constraints.

Author

monic_pitic

Language

EN