Question

我有一个名为user_var的下表

User_ID     VAR_ID  VALUE   START_DATE      END_DATE
1           25      2.0     01-JAN-2009     31-DEC-2011
1           56      4.56    01-JAN-2009     31-DEC-2011
1           89      7.8     01-JAN-2009     31-DEC-2011
2           25      5.64    01-OCT-2009     30-SEPT-2012
2           56      4.86    01-OCT-2009     30-SEPT-2012
2           89      9.87    01-OCT-2009     30-SEPT-2012
1           25      6.33    01-JUL-2009     30-JUN-2012
1           56      4.78    01-JUL-2009     30-JUN-2012
1           89      1.2     01-JUL-2009     30-JUN-2012
2           25      7.21    01-JAN-2009     31-DEC-2011
2           56      2.33    01-JAN-2009     31-DEC-2011
2           89      1.65    01-JAN-2009     31-DEC-2011
1           25      7.89    01-APR-2009     31-MAR-2012
1           56      0.00    01-APR-2009     31-MAR-2012
1           89      1.78    01-APR-2009     31-MAR-2012
2           25      7.6     01-JUL-2009     30-JUN-2012
2           56      7.15    01-JUL-2009     30-JUN-2012
2           89      8.54    01-JUL-2009     30-JUN-2012

我想在时间间隔内基于VAR_ID透视表假设VAR_ID 25代表Credit VAR_ID 56代表借记卡和VAR_ID 89代表余额

输出应该是

USER_ID     CREDIT      DEBIT   BALANCE     START_DATE      END_DATE
1           2.0         4.56    7.8         01-JAN-2009     31-DEC-2011
2           5.64        4.86    9.87        01-OCT-2009     30-SEPT-2012
1           6.33        4.78    1.2         01-JUL-2009     30-JUN-2012
2           7.21        2.33    1.65        01-JAN-2009     31-DEC-2011
1           7.89        0.00    1.78        01-APR-2009     31-MAR-2012
2           7.6         7.15    8.54        01-JUL-2009     30-JUN-2012

Answer 1

条件聚合

SELECT
   u.user_id
   ,SUM(CASE WHEN var_id = 25 THEN u.Value END) AS Credit
   ,SUM(CASE WHEN var_id = 56 THEN u.Value END) AS Debit
   ,SUM(CASE WHEN var_id = 89 THEN u.Value END) AS Balance
   ,Start_Date
   ,End_Date
FROM
  user_var u
GROUP BY
   u.user_id
   ,start_date
   ,end_date

需要我的表的数据透视查询

1 个答案: