SQL for bulk updating default sales start date

Hey Y'all,

I need to bulk update our default sales start date on this season's performances.  I know I had this bit of code but I seem to have lost where I saved it.  Is anyone here willing to share there's before I attempt to recreate it?

Thanks,

Kanani Reichlin

kananir@sct.org

p.s. can't wait for this to be added to season maintenance!