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dhlee3994
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Mar 24, 2024
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| ## Q) | ||
| * 실행계획의 id컬럼에서 select문이 하나인데 여러 테이블이 조인되는 경우 왜 같은 id값이 부여될까요? No newline at end of file | ||
| * 실행계획의 id컬럼에서 select문이 하나인데 여러 테이블이 조인되는 경우 왜 같은 id값이 부여될까요?? No newline at end of file |
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하나의 SELECT 문장 안에 여러개의 테이블을 조인하면 테이블 개수 만큼 실행 계획 레코드가 출력되지만 모두 같은 id를 부여 받습니다.
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(메인에 커밋하는 실수를 또 했네요..)
close ch10 #1