Cascading referential integrity constraints are foreign key constraints that tell SQL Server to perform certain ... The foreign key columns affected must allow NULL values. If a delete statement ...

which can be equated to foreign keys in SQL. A foreign key establishes a connection between two tables, linking a column in one table to a primary key in another. This relationship enables the ...

The combination of the primary and foreign key columns and the rules that dictate the data that ... integrity for both planned application programs and for queries in ad hoc SQL statements and BI ...

A PERSON has many PERSON ADDRESSes and an ADDRESS has many PERSON ADDRESSes. Across physical tables, shared columns are the evidence of a foreign key relationship. The columns comprising the primary ...