INTERSECT附近的语法错误

Question

select SOURCE_SYS_CD,COUNT(*) as [COUNT BY APP] from STAGING_TRANSACTIONS
GROUP BY SOURCE_SYS_CD
ORDER BY SOURCE_SYS_CD
INTERSECT 
select SOURCE_SYS_CD,COUNT(*) as [COUNT BY APP] from TMS..TB_TRANSACTIONS
GROUP BY SOURCE_SYS_CD
ORDER BY SOURCE_SYS_CD

有谁可以告诉我上面的查询有什么问题？它们独立执行但在使用交叉时抛出错误。如何在两个表之间找到公共行？

Answer 1

ORDER BY是你的罪魁祸首。

它在子查询/派生表（http://msdn.microsoft.com/en-us/library/ms188385(v=sql.105).aspx）上无效。这意味着在查询结尾只应该有1个ORDER BY子句。

删除除最后一个ORDER BY之外的所有ORDER BY，你应该很好。

select SOURCE_SYS_CD,COUNT(*) as [COUNT BY APP] from STAGING_TRANSACTIONS
GROUP BY SOURCE_SYS_CD
INTERSECT 
select SOURCE_SYS_CD,COUNT(*) as [COUNT BY APP] from TMS..TB_TRANSACTIONS
GROUP BY SOURCE_SYS_CD
ORDER BY SOURCE_SYS_CD