SQL Agent Jobs – Schedule in seconds

1)   How can I execute a SQL Server Agent Job every few seconds? Administrators try to use SQL Server Agent as a real-time scheduler  - and will attempt to exploit the in- build scheduler functionality.

2)  I wouldn’t recommend SQL Server Agent for sub-minute frequency scheduling. There are  better suited tools for this task. But , if SQL Server Agent is the only available option, use the stored procedures:

              msdb.dbo.sp_add_jobschedule or
              msdb.dbo.sp_update_jobschedule.

 The @freq_subday_type  is associated with msdb..sysjobschedules .

 The msdb..sysjobschedules  table allows the extra value of 0x2  (seconds).This example script updates a schedule to run every 15 seconds

GO
EXEC msdb.dbo.sp_update_schedule @schedule_id=4, 
		@freq_subday_interval=15,
            @freq_subday_type=2
GO

See Also