Question

我有一个这种结构的表格：

   ID   TaskID  ResourceID  IsActive  
  ---   -----   ----------  --------
   1      51        101         1
   2      52        101         1
   3      53        101         1
   4      51        102         0
   5      52        102         0
   6      53        102         0     
   7      51        103         1
   8      52        103         0
   9      53        103         1

我想获取所有记录中IsActive列为0的资源。在这个例子中，我想得到ResourceID-102作为结果，因为它的IsActive列都是0。

我尝试过：

select ResourceID
from TableName
where ResourceID <> (SELECT ResourceID
                     from TableName 
                     group by ResourceID, IsActive
                     having IsActive = 1)

在子查询中，我正在尝试获取所有具有IsActive = 1的资源。但是当没有任何记录具有IsActive = 1时，它不返回任何结果。因此我的主查询也失败了。关于如何实现我的结果的任何建议？

编辑：

解决方案：

select distinct ResourceID
from TableName t1
where not exists (select 1 from TableName t2
                  where t1.ResourceID = t2.ResourceID
                   and t2.IsActive = 1)

此外，我认为我的问题很简单，而不是“可能重复”。未来的读者可能会发现这个问题比建议的副本更容易联系起来。用户更有可能通过“SQL Server groupby two columns”而不是“SQL：选择没有任何具有特定值的行的ID”来搜索此问题。

Answer 1

SELECT ResourceID
FROM
    TableName T
WHERE
    NOT EXISTS
    (
        SELECT *
        FROM TableName
        WHERE
            ResourceID = T.ResourceID AND
            IsActive = 1
    )

或者...

SELECT ResourceID
FROM
    TableName
GROUP BY
    ResourceID
HAVING
    MAX(IsActive) = 0

Answer 2

只要具有相同ResourceID的其他行没有IsActive = 1：

，就返回一行

select ResourceID
from TableName t1
where not exists (select 1 from TableName t2
                  where t1.ResourceID = t2.ResourceID
                   and t2.IsActive = 1)

也许您希望select distinct ResourceID删除重复项。

Answer 3

Discovered UUID: 0000fff1-0000-1000-8000-00805f9b34fb
Discovered UUID: 0000fff2-0000-1000-8000-00805f9b34fb
Discovered UUID: 0000fff3-0000-1000-8000-00805f9b34fb
Discovered UUID: 0000fff4-0000-1000-8000-00805f9b34fb
Discovered UUID: 0000fff5-0000-1000-8000-00805f9b34fb

Answer 4

select ResourceID
from TableName 
group by ResourceID 
having max(IsActive) = 0

SQL Server组由两列组成

4 个答案: