Question

我有以下8条记录：

ID   | Common ID | Reject
-------------------------
BB-1 | BB        | YES
CB-1 | CB        | YES

我的预期结果是：

SELECT A.ds_cnref AS 'Stock Ref', A.ds_fact, A.ds_cost, IIF(A.ds_fact='ITM1',A.ds_cost,'B') AS 'Cost Price' FROM DSPROD A

我只想在具有相同公共ID的所有记录的拒绝列为是时获取不同的记录。

Answer 1

select min(ID), [Common ID], max(Reject)
from tablename
group by [Common ID]
having count(*) = count(case when Reject = 'YES' then 1 end)

如果[Common ID]的行数与YES相同，则返回！

HAVING子句count(*)会返回[Common ID]的总行数。如果Reject = Yes，则case表达式返回1，否则返回null。右侧count返回case返回非空值的行数（即当Reject为yes时！）当行数相同时，HAVING为真！

修改

在这种特定情况下，当拒绝列的值似乎为YES或NULL时，HAVING可以简化为：

having count(*) = count(Reject)

但是，如果在列中找到其他值（如NO），则不会起作用。所以我推荐原始的HAVING条款！

Answer 2

SELECT MIN(ID), CommonID, MIN(Reject) as Reject
FROM   yourtable
GROUP BY CommonID
HAVING  MIN(ISNULL(Reject, ''))  = MAX(ISNULL(Reject, ''))
AND     MIN(ISNULL(Reject, '')) = 'Yes'

编辑：因为你有NULL值，需要在列

上使用ISNULL（）

Answer 3

在GROUP BY子句中使用WHERE的子查询。

SELECT ID, [Common ID], Reject
FROM yourtable
WHERE (SELECT SUM(LEN(a.Reject)) 
       FROM yourtable a 
       WHERE ID = a.ID 
       GROUP BY a.ID) IS NULL

输出：

SQL小提琴：

Answer 4

使用row_number窗口函数和not exists。有点复杂，但应该做的工作：

with cte as(select *, row_number(partition by commonid order by id) rn from table)
select c.* 
from cte c
where c.rn = 1 and 
      not exists(select * from table t 
                 where t.commonid = c.commonid and 
                       (t.reject is null or t.reject <> 'yes'))

Answer 5

SELECT MIN(ID) as ID, [Common ID], MIN(Reject) as Reject
FROM   Table1
GROUP BY [Common ID]
HAVING  MIN(ISNULL(Reject, '')) = 'YES'

Answer 6

这会对您有所帮助

select
(select top 1 ID from YourTable where CommonID= t.CommonID and reject=t.reject)ID,
CommonID,
Reject
from YourTable T
group by
CommonID,reject
having (Reject is not null)

Answer 7

试试这个

SELECT MIN(ID) AS ID, ColumnID, MIN(Reject) AS Reject
       FROM tableName
       WHERE Reject='YES' AND ID LIKE '%1'
       GROUP BY ColumnID

Answer 8

这是实现预期结果的最简单方法。

 SELECT ID, [Common ID], Reject
 FROM YOURTABLE
 WHERE REJECT = 'YES'
 GROUP BY ID, COMMON ID

仅在所有记录时选择不同的记录组。某列具有一定的值

8 个答案: