How to create a SQL Server foreign key

Avoiding Common Foreign Key Mistakes in SQL Databases

What is a foreign key? (with SQL examples)

Commonly used SQL Server Constraints: FOREIGN KEY, CHECK and DEFAULT

Create Table SQL Server with Foreign Key Constraints

Constraints in SQL Server: SQL NOT NULL, UNIQUE and SQL PRIMARY KEY

Script Constraints, Primary and Foreign Keys for SQL Server Database

SQL Server Referential Integrity without Foreign Keys

List Dependencies for SQL Server Foreign Keys