Skip to Main Content
Microsoft® SQL Server 2008 R2 Unleashed
book

Microsoft® SQL Server 2008 R2 Unleashed

by Ray Rankins, Paul Bertucci, Chris Gallelli, Alex T. Silverstein
September 2010
Intermediate to advanced content levelIntermediate to advanced
1704 pages
111h 8m
English
Sams
Content preview from Microsoft® SQL Server 2008 R2 Unleashed

Cascading Deletes

A cascading delete is relatively simple to create. Listing 30.6 shows a cascading delete trigger for the customers table.

Tip

SQL Server 2000 added a feature that allows you to define cascading actions on a FOREIGN KEY constraint. When defining the constraints on a table, you can use the ON UPDATE CASCADE or ON DELETE CASCADE clause, which causes changes to the primary key of a table to cascade to the related foreign key tables. Refer to Chapter 26, “Implementing Data Integrity,” for further information on this option.

Listing 30.6 A Cascading Delete for the customers Table

image

The following DELETE statement deletes the row for ...

Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Start your free trial

You might also like

Microsoft® SQL Server 2005 Unleashed

Microsoft® SQL Server 2005 Unleashed

Ray Rankins, Paul Bertucci, Chris Gallelli, Alex T. Silverstein, Tudor Trufinescu, John Kane
Microsoft® SQL Server™ 2005 Administrator's Companion

Microsoft® SQL Server™ 2005 Administrator's Companion

Edward Whalen, Marcilina Garcia, Burzin Patel, Stacia Misner, Victor Isakov
Microsoft® SQL Server® 2008 Internals

Microsoft® SQL Server® 2008 Internals

Paul Randal Kalen Delaney Kimberly Tripp, and Conor Cunningham

Publisher Resources

ISBN: 9780768696585Purchase book