September 2010
Intermediate to advanced
1704 pages
111h 8m
English
book
Microsoft® SQL Server 2008 R2 Unleashed
by Ray Rankins, Paul Bertucci, Chris Gallelli, Alex T. Silverstein
Content preview from Microsoft® SQL Server 2008 R2 Unleashed
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Chapter 30. Creating and Managing Triggers
A trigger is a special type of stored procedure executed automatically based on the occurrence of a database event. Prior to SQL Server 2005, the database events that fired triggers were based only on data manipulations, such as insertions, updates, or deletions. Triggers in SQL Server 2005 and SQL Server 2008 can also fire on events related to the definition of database objects. The two types of triggering events are referred to as Data Manipulation Language (DML) and Data Definition Language (DDL) events.
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