SQL 非唯一条目

SQL Non unique entries

我正在尝试编写一个查询,returns 我从两个连接的表中获取 DateCode 和 ContainerName,但只给我 DateCode 不唯一的记录(有多个条目) 我觉得我写的 SQL 查询应该做到这一点,但我一直收到这个错误:

Each GROUP BY expression must contain at least one column that is not an outer reference.

也许我太菜鸟了,无法理解为什么这不起作用,但这是我的查询:

SELECT LA.DateCode, C.ContainerName 
FROM CamstarSch.A_LotAttributes LA INNER JOIN 
     CamstarSch.Container C 
     ON C.ContainerId = LA.ContainerId
WHERE LA.DateCode IN (SELECT LA.DateCode 
                      FROM CamstarSch.A_LotAttributes 
                      GROUP BY LA.DateCode, C.ContainerName 
                      HAVING COUNT(*) > 1
                    );

这很简单,你太接近了!

SELECT LA.DateCode, C.ContainerName, COUNT(*)
FROM CamstarSch.A_LotAttributes LA
INNER JOIN CamstarSch.Container C ON C.ContainerId = LA.ContainerId
GROUP BY LA.DateCode, C.ContainerName 
HAVING COUNT(*)>1

subquery 的问题,DateCode 应该来自子查询查询:

WHERE LA.DateCode IN (SELECT AL.DateCode 
                      FROM CamstarSch.A_LotAttributes AS AL
                      GROUP BY AL.DateCode 
                      HAVING COUNT(*) > 1
                    );

但是,简单聚合也可以:

SELECT LA.DateCode, C.ContainerName 
FROM CamstarSch.A_LotAttributes LA INNER JOIN 
     CamstarSch.Container C 
     ON C.ContainerId = LA.ContainerId
GROUP BY LA.DateCode, C.ContainerName 
HAVING COUNT(*) > 1;