Hope you guys can help me figure out the correct update statement syntax for the following integration.
I have a "Performance Table" which i insert weekly performance numbers into for each store. The table is constructed w/ columns such as Store, Weekenddate, Sales, Refunds, #ofPatients
In a "Averages Table" i have every weekenddate for each store populated. So 52 Weeks for 10 stores = 520 Rows of Store numbers & WeekendDates.
What i would like to do is run a loop or update statement which would update the store average for each weekendate based on the last 13 weeks.
This is my query
update performancestore_avgs set SalesAvg =
(select sum(SalesHit)/Count(Store) from performance_store where performance_store.weekenddate >= performancestore_avgs.weekenddate-84 and performancestore_Avgs.store = performance_store.store)
The update statement runs but the averages are completly wrong. Please help...
shelanp07, I do not know if I got it wrong, but I believe that Count(Store) will always equal 1. The correct would be divided by 13?
I also believe you're missing the date limit until performancestore_avgs.weekenddate.