데이터베이스 질문과 답변
| COLUMN1 | COLUMN2 |
| A | 1 |
| B | 2 |
| C | 3 |
| D | 4 |
| E | 5 |
이렇게 데이터가 들어있는데
결과를 A , 1 , 1
B , 2 , 3
C , 3 , 6
D , 4 , 10
E , 5 , 15
이런결과를 얻으려면 어떻게 해야 할까요?
SELECT COLUMN1 , COLUMN2 , 현재 ROW까지의 COLUMN2의 합 FROM TABLE
고수님들의 노하우를 좀 알려주세요. 감사합니다.
by 마농
[2012.04.20 15:56:36]
SELECT column1
, column2
, SUM(column2) OVER(ORDER BY column1) column3
FROM table
;
by 김용한
[2012.04.20 15:56:37]
WITH T AS
(
SELECT 'A' col1, 1 col2 FROM DUAL UNION ALL
SELECT 'B' col1, 2 col2 FROM DUAL UNION ALL
SELECT 'C' col1, 3 col2 FROM DUAL UNION ALL
SELECT 'D' col1, 4 col2 FROM DUAL UNION ALL
SELECT 'E' col1, 5 col2 FROM DUAL
)
SELECT COL1
, COL2
, SUM(COL2) OVER ( ORDER BY COL2 ) COL3
FROM T
ORDER BY COL2
(
SELECT 'A' col1, 1 col2 FROM DUAL UNION ALL
SELECT 'B' col1, 2 col2 FROM DUAL UNION ALL
SELECT 'C' col1, 3 col2 FROM DUAL UNION ALL
SELECT 'D' col1, 4 col2 FROM DUAL UNION ALL
SELECT 'E' col1, 5 col2 FROM DUAL
)
SELECT COL1
, COL2
, SUM(COL2) OVER ( ORDER BY COL2 ) COL3
FROM T
ORDER BY COL2
) 버튼을 클릭하여 작성 하시면 됩니다.