sql - performing multiple separate sums with separate filters on a table -

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i have table amount column reference field , id column. need sum amount based on different combinations of id's each reference. there 9 different combinations in total need insert separate table.

the best way i've found use cursor , each sum separately, assign amount variable , update table each reference , each combination.

hope makes sense!

what hoping find out - there better way it?

thanks.

you like:

select sum(case when (id = 9) val else 0 end) conditionalsum   dbo.table

you can have many of sums different conditions in 1 query.


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