By using cascading referential integrity constraints, you can define the actions that SQL Server 2005 takes when a user tries to delete or update a key to which existing foreign keys point. Topic ...

By defining referential constraints, you can set up the database to control the ... data integrity for both planned application programs and for queries in ad hoc SQL statements and BI tools.

This is the default if no referential action is specified. NULL allows primary variables to be updated or deleted, but changes any affected foreign key values to a missing value. proc sql; create ...

Hi,<BR><BR>I'm in the process of building a SQL clean-up script that will be ... there is a difficulty regarding this FK constraint. As far as I'm aware the best option here is to temporarily ...

The next SQL*Plus snippet demonstrates this in ... related views is one that provides information on referential integrity constraints (CONSTRAINT_TYPE of R). In particular, this simple query ...

Data types and check constraints function by restricting values for a column, just like referential integrity, as in Foreign Keys, operates similarly. Some level of design confusion does exist because ...