Can I read Foreign Key Constraints in SQL on EtoBox?

Foreign Key Constraints in SQL by K Harish is a document available to read on EtoBox.

What is Foreign Key Constraints in SQL about?

The document discusses foreign key constraints and composite primary keys. It provides an example of creating tables with a composite primary key on two columns, and incorrectly trying to create a foreign key constraint on only one of those columns. It explains that a foreign key must reference the entire composite primary key, not just parts of it.

Author

K Harish

Language

EN