8 January 2012

WAITFOR in Sql Server 2008


WAITFOR in Sql Server 2008

Blocks the execution of a batch, stored procedure, or transaction until a specified time or time interval is reached, or a specified statement modifies or returns at least one row.


A. Using WAITFOR TIME

The following example executes the stored procedure sp_update_job at 10:20 P.M. (22:20).

USE msdb;
EXECUTE sp_add_job @job_name = 'TestJob';
BEGIN
    WAITFOR TIME '22:20';
    EXECUTE sp_update_job @job_name = 'TestJob',
        @new_name = 'UpdatedJob';
END;
GO
B. Using WAITFOR DELAY

The following example executes the stored procedure after a two-hour delay.

BEGIN
    WAITFOR DELAY '02:00';
    EXECUTE sp_helpdb;
END;
GO

http://msdn.microsoft.com/en-us/library/ms187331(v=SQL.100).aspx

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