A fifth best practice for naming primary keys and foreign keys is to avoid using reserved words or symbols that have special meanings or functions in SQL or your database system.

Foreign key is used to establish a link between two tables . it always define in reference of primary key ( another table ) . it act as a primary key in its own table and foreign key for another table ...

-- The ON DELETE CASCADE option in SQL is used to maintain referential integrity between tables. When you define a -- foreign key with ON DELETE CASCADE, it ensures that if a row in the parent table ...

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Cascading referential integrity constraints are foreign key constraints that tell SQL Server to perform certain actions when a primary key field in a primary key-foreign key relationship is ...

The difference between a composite key, a foreign key and a primary key is a good illustration of the complex and byzantine nature of relational database standards that make database administration an ...