嗨,我有查询返回我的数据
SELECT
s.StandardID,
s.StandardName as Standard,
TableA.Score,
Dropdown1.Name as dq,
Standard.ParentStandardID,
Standard.Weight
FROM TableA
JOIN Standard ON Standard.StandardID = TableA.StandardID
结果
+------------+----------+-------+------------------+---------+
| StandardID | Standard | Score | parentstandardid | weight |
+------------+----------+-------+------------------+---------+
| 1 | A | | 3 | o |
+------------+----------+-------+------------------+---------+
| 107 | B | | NULL | 1 |
+------------+----------+-------+------------------+---------+
| 111 | C | | 1 | 107 |
+------------+----------+-------+------------------+---------+
| 112 | D | | 2 | 107 |
+------------+----------+-------+------------------+---------+
现在,分数为空,我想显示核心响应父母ID的分数总和。如果standardID为107,且比null得分高的分数应该是父母ID的总和107。如果不比得分高,则不使用任何分组依据。
任何帮助,将不胜感激
谢谢 !
最佳答案
选择
S.StandardID,
(当A.Score为NULL则C.Score ELSE A.Score结束的情况)AS New_Score
从表A
内联接标准S ON S.StandardID = TableA.StandardID
左外连接
(
SELECT S1.ParentStandardID,SUM(B.ScoreValue)得分
在表B中,标准S1,其中S1.StandardID = B.StandardID
GROUP BY ParentStandardID
) C
开启S.StandardID = C.ParentStandardID