Combine values from two records in one query
Hello.
Is it possible to combine two record - only one column value?
With one query we get these results:
A____B____C____D____E_______F_______G______H
+++++++++++++++++++++++++++++++++++++++++
28___84___P___16____________1____02.06.09___1
28___84___p___8_____________1____02.06.09___1
28___84___S___16____________1____02.06.09___1
28___84___T___12____________1____02.06.09___1
28___84___1___137___________1____02.06.09___1
28___84___5___18___66,42____1____02.06.09____1
28___84___6___14____________1____02.06.09___1
28___84___8___17___214,2____1____02.06.09___1
If there is a record with column C value 'p', then column value 'D' should be added to record with C value 'P' and 'S': result should be like this:
No 'p' record and values (D column) for 'P' and 'S' should be a summed by 8 from record 'p'.
A____B____C____D____E_______F_______G______H
+++++++++++++++++++++++++++++++++++++++++
28___84___P___24____________1____02.06.09___1
28___84___S___24____________1____02.06.09___1
28___84___T___12____________1____02.06.09___1
28___84___1___137___________1____02.06.09___1
28___84___5___18___66,42____1____02.06.09____1
28___84___6___14____________1____02.06.09___1
28___84___8___17___214,2____1____02.06.09___1
And this should be restricted to column A value.
Any idea?
Thanks.
Edited by: DejanH on Jun 2, 2009 11:39 AM
OK, that's a messy requirement, here's one for 'p' but no 'P' (and 't' but no 'T'), and you can expand that for others yourself.
WITH test_data AS (
SELECT 28 A, 84 B, 'p' C, 8 D, NULL E, 1 F, TO_DATE('02.06.09','DD.MM.YY') G, 1 H FROM DUAL UNION ALL
SELECT 28 A, 84 B, 'S' C, 16 D, NULL E, 1 F, TO_DATE('02.06.09','DD.MM.YY') G, 1 H FROM DUAL UNION ALL
SELECT 28 A, 84 B, 'T' C, 12 D, NULL E, 1 F, TO_DATE('02.06.09','DD.MM.YY') G, 1 H FROM DUAL UNION ALL
SELECT 28 A, 84 B, '1' C, 137 D, NULL E, 1 F, TO_DATE('02.06.09','DD.MM.YY') G, 1 H FROM DUAL UNION ALL
SELECT 28 A, 84 B, '5' C, 18 D, 66.42 E, 1 F, TO_DATE('02.06.09','DD.MM.YY') G, 1 H FROM DUAL UNION ALL
SELECT 28 A, 84 B, '6' C, 14 D, NULL E, 1 F, TO_DATE('02.06.09','DD.MM.YY') G, 1 H FROM DUAL UNION ALL
SELECT 28 A, 84 B, '8' C, 17 D, 214.2 E, 1 F, TO_DATE('02.06.09','DD.MM.YY') G, 1 H FROM DUAL)
-- end test data
SELECT td1.A, td1.B, td1.C,
CASE WHEN td1.C IN ('P', 'S') THEN NVL(td1.D,0) + NVL(td2.D, 0) ELSE td1.D END D,
TO_CHAR(td1.E * 100, 'fm99990,09') E, td1.F, td1.G, td1.H
FROM test_data td1
LEFT JOIN (
SELECT A, SUM(D) D
FROM test_data
WHERE C= 'p'
GROUP BY A) td2
ON (td1.A = td2.A)
WHERE C != 'p'
GROUP BY td1.A, td1.B, td1.C, CASE WHEN td1.C IN ('P', 'S') THEN NVL(td1.D,0) + NVL(td2.D, 0) ELSE td1.D END, TO_CHAR(td1.E * 100, 'fm99990,09'), td1.F, td1.G, td1.H
UNION
SELECT td1.A, td1.B, UPPER(td1.C) C,
SUM(td1.D) D,
TO_CHAR(td1.E * 100, 'fm99990,09') E, td1.F, td1.G, td1.H
FROM test_data td1
WHERE td1.C in ('p', 't')
GROUP BY td1.A, td1.B, UPPER(td1.C),TO_CHAR(td1.E * 100, 'fm99990,09'), td1.F, td1.G, td1.H
ORDER BY 1
A B C D E F G H
28 84 1 137 1 02-JUN-09 1
28 84 5 18 66,42 1 02-JUN-09 1
28 84 6 14 1 02-JUN-09 1
28 84 8 17 214,20 1 02-JUN-09 1
28 84 P 8 1 02-JUN-09 1
28 84 S 24 1 02-JUN-09 1
28 84 T 12 1 02-JUN-09 1
7 rows selected.
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