Question

我的表是

   ID       ATTRID    VALSTR   
1771373       1         1234  
1771373       3         510 
1771373       7         2016
1771373       8         05
1777623       3         5003 
1777623       7         2016 
1777623       8         05
1778103       3         520
1778103       7         2016
1778103       8         06

我想选择条件

                       AttrId = 3 AND ValStr = 510 
                       AttrId = 7 AND ValStr = 2016
                       AttrId = 8 AND ValStr = 05

我写了这个，但是没有正确运行

SELECT *
FROM Table
WHERE ((AttrID = 3 AND ValStr ='510') OR
       (AttrID = 7 AND ValStr ='2016')  OR
       (AttrID = 8 AND ValStr ='05')
      ) AND
      DefID = 1375552

如何撰写此查询？能帮帮我吗？

Answer 1

我想看到AttrID = 3 AND ValStr ='510'AttrID = 7 AND ValStr ='2016' AttrID = 8 AND ValStr ='05'同时3条件为真所以想要仅参见ID 1771373

我认为这就是你所追求的。是吗？

SELECT  *
FROM
(
    select  *, cnt = count(*) over (partition by ID)
    from    [Table]
    WHERE   (AttrID = 3 AND ValStr ='510') 
    OR      (AttrID = 7 AND ValStr ='2016')  
    OR      (AttrID = 8 AND ValStr ='05')
) AS D
WHERE   cnt = 3

Answer 2

另一种方式

    select a.* from yourTable a  join
    (values (3,'510'),(7,'2016'),(8,'05')) x(a,b) 
on a.attrid=x.a and a.valstr=x.b 
where  ID = 1771373

Answer 3

SELECT *
FROM Table
WHERE ((AttrID = 3 AND ValStr ='510') OR
       (AttrID = 7 AND ValStr ='2016')  OR
       (AttrID = 8 AND ValStr ='05')
      ) AND
      ID = 1771373

您的查询没问题。

Answer 4

如果表只有ID，ATTRID和VALSTR作为列，则条件DefID=1375552应该抛出错误。看起来您也可能在ID条件上输入错字：

SELECT *
FROM Table
WHERE ((AttrID = 3 AND ValStr ='510') OR
      (AttrID = 7 AND ValStr ='2016')  OR
      (AttrID = 8 AND ValStr ='05'))
      AND ID = 1771373

应该可以正常工作。

如何选择sql complex查询条件和或

4 个答案: