例如图中B学管就是带着一对N的课,也带着一个班课,怎样能把业绩金额合到一块
SELECT 讲师 , sum(金额) as 金额 from (
SELECT 学管师 as 讲师,金额 from TABLE
union ALL
SELECT 班主任 as 讲师,金额 from TABLE
) a
GROUP BY 讲师