Constraints in SQL | SQL constraints | NOT NULL | Unique Key | Default | Check | in oracle database
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Constraints in SQL | SQL constaints | NOT NULL | Unique Key | Default | Check
in this playlist, I am going to start Structured Query Language (SQL). In this video, I have explained SQL Constraints. SQL constraints are basically set of rules that applies to a table. In this video I have explained the various constraints like unique key, NOT NULL, check constraints, default constraint.
