doing math in a stored procedure
I have a table called PGRating. I want to be able to add the values in the Rating column all together and then take an average of that. in plain english, here is the formula:
select (Sum of all Rating values) / (count of rows)
from PGRating
where PGImageID = @PGImageID
select (Sum of all Rating values) / (count of rows)
from PGRating
where PGImageID = @PGImageID
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(Select Count(1) From PGRating)
From PRGRating
Where PGImageID = @PGImageID