Oracle constraints | Unique Primary Foreign keys | CHECK REF Constraints | Database | DBA | PLSQL
We have explained all constraints and shown how we can implemet the constraints in oracle. We explained unique key, primary key, foreign key ,check constraints, ref constraints. this video is very much important if you want to understand constraints from bergining.
What to learn:
What is Oracle Constraints?
What are NULL and NOT NULL constraint?
What are UNIQUE key, PRIMARY key and FOREIGN key constraint?
What is CHECK constraint?
What is REF constraint?
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Ref - https://docs.oracle.com/cd/B19306_01/...
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