通过写视图解决的;设置一个类型字段,先按年、月写了个视图,在这个视图基础上再分的按季节,也是借鉴其他人sql语句(SELECT *,
CASE
WHEN 月 BETWEEN 1 AND 3 THEN '1季度'
WHEN 月 BETWEEN 4 AND 6 THEN '2季度'
WHEN 月 BETWEEN 7 AND 9 THEN '3季度'
WHEN 月 BETWEEN 10 AND 12 THEN '4季度'
END AS 季度
from [客户往来年视图])
涉及 select, union all,inner jion几个通用sql命令
谢谢!