sql server - SQL sum columns depend on the value of other column -



sql server - SQL sum columns depend on the value of other column -

i've got table fields:

doc_no , doc_type , item_no , added_qty ,deducted_qty

i need query returning result set based on

if doc_type= "2" select sum(added_qty) sum_added_qty if doc_type= "7" select sum(deducted_qty) sum_deducted_qty

and show sum_added_qty - sum_deducted_qty stock

the result must on same row

-------------------------------------------------------- | item_no | sum_added_qty | sum_deducted_qty | stock| --------------------------------------------------------

thanks help!

(system sql server)

select item_no, sum(case when doc_type = '2' added_qty else 0 end) sum_added_qty, sum(case when doc_type = '7' deducted_qty else 0 end) sum_deducted_qty, sum(case when doc_type = '2' added_qty when doc_type = '7' -deducted_qty else 0 end) stock yourtable grouping item_no

sql-server lookup

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