June 2015
Intermediate to advanced
1800 pages
70h 6m
English
book
Microsoft SQL Server 2014 Unleashed
by Ray Rankins, Paul Bertucci, Chris Gallelli, Alex T. Silverstein
Content preview from Microsoft SQL Server 2014 Unleashed
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Using Recursive Triggers
Nested triggers allow an update on another table modified within a trigger to fire a trigger on that other table. However, if a trigger modifies records in the same table for which the trigger was created, the trigger does not fire again unless the recursive triggers option is turned on. recursive triggers is a database option that is turned off by default.
The first command in the following example checks the setting of recursive triggers for the AdventureWorks2012 database, and the second sets recursive triggers to TRUE:
select DATABASEPROPERTYEX ('AdventureWorks2012', 'IsRecursiveTriggersEnabled')ALTER DATABASE AdventureWorks2012 SET RECURSIVE_TRIGGERS ON
If you turn off nested triggers, ...
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