sql - SUM quantity based on 3 columns in the table -


i have table shown here:

table.

i need sum quantities same item , loc combinations dates in monthly buckets. instance between 1-june , 30 june, need sum quantities based on item , loc combinations. 

select item, loc, year(date), month(date), sum(qty) quantity table group item, loc, year(date), month(date)

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