Configure the nested triggers Server Configuration Option
This topic describes how to configure the nested triggers server configuration option in SQL Server 2012 by using SQL Server Management Studio or Transact-SQL. The nested triggers option controls whether an AFTER trigger can cascade. That is, perform an action that initiates another trigger, which initiates another trigger, and so on. When nested triggers is set to 0, AFTER triggers cannot cascade. When nested triggers is set to 1 (the default), AFTER triggers can cascade to as many as 32 levels. INSTEAD OF triggers can be nested regardless of the setting of this option.
In This Topic
Before you begin:
Security
To configure the nested triggers option, using:
SQL Server Management Studio
Transact-SQL
Follow Up: After you configure the nested triggers option
Before You Begin
Security
Permissions
Execute permissions on sp_configure with no parameters or with only the first parameter are granted to all users by default. To execute sp_configure with both parameters to change a configuration option or to run the RECONFIGURE statement, a user must be granted the ALTER SETTINGS server-level permission. The ALTER SETTINGS permission is implicitly held by the sysadmin and serveradmin fixed server roles.
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Using SQL Server Management Studio
To configure the nested triggers option
In Object Explorer, right-click a server, and then select Properties.
On the Advanced page, set the Allow Triggers to Fire Others option to True (the default) or False.
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Using Transact-SQL
To configure the nested triggers option
Connect to the Database Engine.
From the Standard bar, click New Query.
Copy and paste the following example into the query window and click Execute. This example shows how to use sp_configure to set the value of the nested triggers option to 0.
USE AdventureWorks2012 ;
GO
EXEC sp_configure 'show advanced options', 1;
GO
RECONFIGURE ;
GO
EXEC sp_configure 'nested triggers', 0 ;
GO
RECONFIGURE;
GO
For more information, see Server Configuration Options.
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Follow Up: After you configure the nested triggers option
The setting takes effect immediately without restarting the server.
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