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composite/oracle.join.sql

Created February 27, 2014 04:59
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Oracle ANSI Outer join to classic join example
Raw
oracle.join.sql
FROM a LEFT JOIN b ON a.key = b.key AND a.val = '460'
--위 Ansi Outer Join을 같은 결과를 내는 오라클 조인으로 바꾸어 보면 아래와 같습니다.
FROM a, b WHERE DECODE(a.val,'460',a.key) = b.key(+)
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