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셈플테이블은 아래와 같다.
------------------------------------------------------------
SELECT 'AAAA' AS COD, '1111' AS NAM
FROM DUAL
UNION ALL
SELECT 'AAAA' AS COD, 'aaaa' AS NAM
FROM DUAL
UNION ALL
SELECT 'AAAA' AS COD, 'xxxx' AS NAM
FROM DUAL
UNION ALL
SELECT 'AAAA' AS COD, '에이이에' AS NAM
FROM DUAL
UNION ALL
SELECT 'BBBB' AS COD, '일일일' AS NAM
FROM DUAL
UNION ALL
SELECT 'BBBB' AS COD, 'twotwo' AS NAM
FROM DUAL
UNION ALL
SELECT 'BBBB' AS COD, '3333' AS NAM
FROM DUAL
----------------------------------------
다음 결과를 쿼리하시오
COD NAM
AAAA 1111,aaaa,xxxx,에이
BBBB 일일이,twotwo,3333
--111111111
SELECT COD
, WM_CONCAT(DISTINCT NAM)
FROM (SELECT 'AAAA' AS COD, '1111' AS NAM FROM DUAL UNION ALL
SELECT 'AAAA' AS COD, 'aaaa' AS NAM FROM DUAL UNION ALL
SELECT 'AAAA' AS COD, 'xxxx' AS NAM FROM DUAL UNION ALL
SELECT 'AAAA' AS COD, '에이이에' AS NAM FROM DUAL UNION ALL
SELECT 'BBBB' AS COD, '일일일' AS NAM FROM DUAL UNION ALL
SELECT 'BBBB' AS COD, 'twotwo' AS NAM FROM DUAL UNION ALL
SELECT 'BBBB' AS COD, '3333' AS NAM FROM DUAL )
GROUP BY COD
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