I have a column (PL.UNITS) that I need to Total at the bottom of the results of a query, is it possible to sum PL.UNITS that is already summed?
Please see query below.
SELECT ID.DUEDATE AS [DUE DATE], CD.RENEWALDATE, CD.RENEWALSTATUS, CD.CONTRACTNUMBER, L.LOCNAME, L.LOCADDRESS1, L.LOCADDRESS2, L.LOCADDRESS3, L.LOCADDRESS4, L.POSTCODE, SUM(PL.UNITS) AS UNITS from CLIENTDETAILS CD
INNER JOIN LOCATIONS L ON CD.CLIENTNUMBER = L.CLIENTNUMBER
INNER JOIN ITEMDETAILS ID ON L.LOCNUMBER = ID.LOCNUMBER
INNER JOIN PLANT PL ON ID.CODE = PL.CODE
WHERE L.OWNER = 210 and L.STATUSLIVE = 1 and ID.DUEDATE > '01/01/2017'
GROUP BY ID.DUEDATE, CD.RENEWALDATE, CD.RENEWALSTATUS, CD.CONTRACTNUMBER, L.LOCNAME, L.LOCADDRESS1, L.LOCADDRESS2, L.LOCADDRESS3, L.LOCADDRESS4, L.POSTCODE
It's probably best to do this sort of thing in front end development. Nevertheless, here is an example (quick and dirty, but shows the idea) for sql-server:
SELECT COALESCE(a.id, 'total') AS id
, SUM(a.thing) AS thing_summed
FROM (
SELECT '1' id
, 1 thing
UNION
SELECT '2'
, 2 thing
UNION
SELECT '1'
, 3 thing
) AS a
GROUP BY ROLLUP(a.id)
Result:
+-------+--------------+
| id | thing_summed |
+-------+--------------+
| 1 | 4 |
| 2 | 2 |
| total | 6 |
+-------+--------------+
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