Error with having clause

Question

select SUM (Bill) from ProductSaleReport group by PCI 
having MONTH(Date) between 1 and 3

Could any one please help me finding the issue.?

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Answer 1

Use WHERE to filter before group by

HAVING is used to filter data after the group by occurs

select SUM (Bill) -- comment: you need to add the PCI column since you use it in the group by right?
from ProductSaleReport 
WHERE MONTH(Date) between 1 and 3
group by PCI