Question

SELECT 
  ListProperty.*,PropertyType.ptype as PType,PropertyType.category as PCategoryi,locations.location as PLocation 
FROM 
  ListProperty,PropertyType,locations,ListPropertySortData 
WHERE 
  (ListProperty.ptid=PropertyType.ptid AND ListProperty.locid=locations.locid) 
  AND ListProperty.lpid IN (SELECT lpid FROM ListPropertyMore WHERE ListProperty.locid LIKE '%12,18%') 
  AND ListPropertySortData.lpid=ListProperty.lpid 
  AND expdate>=CURDATE() 
  AND status='T';

我需要输出12和18的locid

Answer 1

也许您可以像这样使用FIND_IN_SET：

SELECT 
  ListProperty.*,
  PropertyType.ptype as PType,
  PropertyType.category as PCategoryi,
  locations.location as PLocation 
FROM 
  ListProperty,PropertyType,
  locations,
  ListPropertySortData 
WHERE 
  (
    ListProperty.ptid=PropertyType.ptid 
    AND ListProperty.locid=locations.locid
  ) 
  AND ListProperty.lpid IN 
  (
      select 
        lpid 
      from 
        ListPropertyMore 
      WHERE FIND_IN_SET (ListProperty.locid, '12,18')
  ) 
  AND ListPropertySortData.lpid=ListProperty.lpid 
  AND expdate>=CURDATE() AND status='T'

参考：

FIND_IN_SET(str,strlist)

Answer 2

您可以使用OR运算符。

WHERE (ListProperty.locid like '%12%' OR ListProperty.locid like '%18%')

Answer 3

对于locid 12和18，请使用GROUP BY和HAVING条款：

试试这个：

SELECT PropertyType.ptype as PType,PropertyType.category as PCategoryi,locations.location as PLocation 
FROM ListProperty,PropertyType,locations,ListPropertySortData 
WHERE (ListProperty.ptid=PropertyType.ptid AND ListProperty.locid=locations.locid) 
  AND ListProperty.lpid IN (select lpid from ListPropertyMore WHERE ListProperty.locid IN (12,18) ) 
  AND ListPropertySortData.lpid=ListProperty.lpid 
  AND expdate>=CURDATE() AND status='T' 
GROUP BY PropertyType.ptype,PropertyType.category,locations.location
HAVING COUNT(DISTINCT ListProperty.lpid)=2

Answer 4

您可以更好地使用IN操作数;

AND ListProperty.lpid IN (select lpid from ListPropertyMore WHERE ListProperty.locid IN (12,18) )

但是对于你的方法，你已经倒退了，我会在开头和结尾添加逗号，因为你会得到部分匹配，其中添加的逗号使它更加明显： AND ListProperty.lpid IN (select lpid from ListPropertyMore WHERE ',12,18,' LIKE CONCAT('%,',ListProperty.locid,',%' )

使用相同的CSV方案，Arion的答案比上面“手动”处理更容易。

如何使用逗号分隔值为字段设置'where'子句？

4 个答案: