Basics of SQL Server Job Scheduling


To create and attach a schedule to a job

1.    In Object Explorer, connect to an instance of the SQL Server Database Engine, and then expand that instance.
2.    Expand SQL Server Agent, expand Jobs, right-click the job you want to schedule, and click Properties.
3.    Select the Schedules page, and then click New.
4.    In the Name box, type a name for the new schedule.
5.    Clear the Enabled check box if you do not want the schedule to take effect immediately following its creation.
6.    For Schedule Type, select one of the following:
·         Click Start automatically when SQL Server Agent starts to start the job when the SQL Server Agent service is started.
·         Click Start whenever the CPUs become idle to start the job when the CPUs reach an idle condition.
·         Click Recurring if you want a schedule to run repeatedly. To set the recurring schedule, complete the Frequency, Daily Frequency, and Duration groups on the dialog.
·         Click one time if you want the schedule to run only once. To set the One time schedule, complete the One-time occurrence group on the dialog.

To attach a schedule to a job

1.    In Object Explorer, connect to an instance of the SQL Server Database Engine, and then expand that instance.
2.    Expand SQL Server Agent, expand Jobs, right-click the job that you want to schedule, and click Properties.
3.    Select the Schedules page, and then click Pick.
4.    Select the schedule that you want to attach, and then click OK.
5.    In the Job Properties dialog box, double-click the attached schedule.
6.    Verify that Start date is set correctly. If it is not, set the date when you want for the schedule to start, and then click OK.
7.    In the Job Properties dialog box, click OK.

To prevent a scheduled job from running, you must do one of the following:

·         Disable the schedule.
·         Disable the job.
·         Detach the schedule from the job.
·         Stop the SQL Server Agent service.
·         Delete the schedule.
If the schedule is not enabled, the job can still run in response to an alert or when a user runs the job manually. When a job schedule is not enabled, the schedule is not enabled for any job that uses the schedule.
You must explicitly re-enable a schedule that has been disabled. Editing the schedule does not automatically re-enable the schedule.

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