Użyj PIVOT
i ROW_NUMBER
funkcja analityczna:
Konfiguracja schematu Oracle 11g R2 :
CREATE TABLE your_query_result (sal, cat, id, shop ) AS
SELECT 1900, '34R5', 10, 'dense' FROM DUAL UNION ALL
SELECT 1900, '34r5', 10, 'SVM' FROM DUAL UNION ALL
SELECT 1900, '34r5', 10, 'bpo' FROM DUAL UNION ALL
SELECT 2345, '3ER4', 11, 'kpo' FROM DUAL UNION ALL
SELECT 2345, '3ER4', 11, 'infra' FROM DUAL UNION ALL
SELECT 12345, '34F4', 12, 'const' FROM DUAL;
Zapytanie 1 :
SELECT sal,
cat,
id,
"1_SHOP" AS shop_1,
"2_SHOP" AS shop_2,
"3_SHOP" AS shop_3
FROM (
SELECT r.*,
ROW_NUMBER() OVER (
PARTITION BY sal, cat, id
ORDER BY shop
) AS rn
FROM (
SELECT * FROM your_query_result
) r
)
PIVOT (
MAX( shop ) AS shop
FOR rn IN ( 1, 2, 3 )
)
Wyniki :
| SAL | CAT | ID | SHOP_1 | SHOP_2 | SHOP_3 |
|-------|------|----|--------|--------|--------|
| 1900 | 34R5 | 10 | dense | (null) | (null) |
| 1900 | 34r5 | 10 | SVM | bpo | (null) |
| 2345 | 3ER4 | 11 | infra | kpo | (null) |
| 12345 | 34F4 | 12 | const | (null) | (null) |
Jeśli chcesz, aby pierwszy i drugi wiersz znajdowały się w tym samym wierszu, po prostu zmień CAT
kolumna pisana małymi literami przed wygenerowaniem ROW_NUMBER
i PIVOT
inż.