PIVOT
を使用する およびROW_NUMBER
分析関数:
Oracle11gR2スキーマのセットアップ :
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;
クエリ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 )
)
結果 :
| 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) |
同じ行の最初の行と2番目の行が必要な場合は、CAT
を変更するだけです。 ROW_NUMBER
を生成する前に列を小文字にする およびPIVOT
ing。