WITH i AS
(
SELECT inkcode, SUM(quantity) AS qin
FROM tblInkReceiving
GROUP BY
inkcode
),
o AS
(
SELECT inkcode, SUM(quantity) AS qout
FROM tblInkDelivery
GROUP BY
inkcode
)
SELECT COALESCE(i.inkcode, o.inkcode) AS inkcode,
COALESCE(qin, 0) AS stock_in,
COALESCE(qout, 0) AS stock_out,
COALESCE(qin, 0) - COALESCE(qout, 0) AS stock_balance
FROM i
FULL JOIN
o
ON o.inkcode = i.inkcode
