Oracle 유용 구분 정리 해석내용 - PARTITION BY, START WITH...CONNECT BY PRIOR
이전에 유용 구분이라고 작성한 내용을 해석해 보겠다. 우선 기본이 되는 table이 있어야 하는데 없으니까 view를 생성하는 부분이 다음과 같다. WITH TVIEW AS ( SELECT 'a' AS ac , '1a' AS acv FROM dual UNION ALL SELECT 'a' AS ac , '3a' AS acv FROM dual UNION ALL SELECT 'e' AS ac , '2e' AS acv FROM dual UNION ALL SELECT 'a' AS ac , '4a' AS acv FROM dual UNION ALL SELECT 'b' AS ac , '1b' AS acv FROM dual UNION ALL SELECT 'c' AS ac , '1c' AS acv FROM dual UNI..
Programming/Database
2010. 5. 28. 10:39
