누적형 코드 데이터를 계층으로 조회
대중소 코드가 누적되어서 들어가 있는 코드 분류체계라면 connect by 를 통해서 계층형으로 조회하는 SQL은 아래와 같이 만들 수 있다,WITH TBL_DATA AS (SELECT 'L' AS DEP, '1' AS CD, '동물' AS CD_NM FROM DUALUNION SELECT 'M' AS DEP, '10' AS CD, '포유류' AS CD_NM FROM DUALUNION SELECT 'M' AS DEP, '11' AS CD, ' 어류' AS CD_NM FROM DUALUNION SELECT 'S' AS DEP, '1001' AS CD, '곰' AS CD_NM FROM DUALUNION SELECT 'S' AS DEP, '1101' AS CD, '고등어' AS CD_NM FROM DUALUN..
2025. 4. 8.
