SQL. Contribute to ham1dul-islam/SQL development by creating an account on GitHub. Skip to content. Navigation Menu Toggle navigation. Sign in Product GitHub Copilot. Write better code with AI GitHub ...

Contribute to buxiaomo/gitlab-doc development by creating an account on GitHub.

Register; Join the social network of Tech Nerds, increase skill rank, get work, manage projects ...

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 ...

column-definition See column-definition. constraint-name is the name for the constraint being specified. order-by-item See ORDER BY Clause. query-expression See query-expression. referential-action ...

While a primary key may exist on its own, a foreign key must always reference to a primary key somewhere. The original table containing the primary key is the parent table (also known as referenced ...