sql查询按锚定字段搜索

Question

帮帮我PLZ，这个sql无法正常工作

 SELECT * 
 FROM p_pl 
 WHERE (`sid` = '25' AND `value` = 'zxc') 
   AND (`sшd` = '22' AND `value` = 'cxz')

这个sql workin：

 SELECT * FROM p_pl WHERE (`sid` = '25' AND `value` = 'zxc')

如何进行查询？感谢

Answer 1

也许你想要OR？

SELECT * 
FROM p_pl 
WHERE (`sid` = '25' AND `value` = 'zxc') 
   OR (`sid` = '22' AND `value` = 'cxz')

Answer 2

我认为你想使用OR：

select *
from p_pl
where  (`sid` = '25' and `value` = 'zxc')
    or (`sid` = '22' and `value` = 'cxz')

或者简单地说：

select *
from p_pl
where (sid, value) in(('25','zxc'),('22','cxz'));

Answer 3

你应该使用'OR'代替'AND'吗？

 SELECT * 
 FROM p_pl 
 WHERE (`sid` = '25' AND `value` = 'zxc') 
   OR(`sшd` = '22' AND `value` = 'cxz')