>How can I use msdb.dbo.sp_update_jobschedule to change a job that is running daily at 9am to run hourly?
>
>Thanks,
>
>Jerry

Can you do this through SSMS interface and then script the actions? That's the quick idea that comes to mind before checking BOL.

BTW, what is your SQL Server version? BOL suggests that this command is deprecated. sp_update_schedule should be used instead.

See this reference BOL Reference