Question

当我使用AND和OR对具有多个列的LIKE MySQL查询进行查询时，我的过滤器结果将导致查询，例如价格0和50000停止工作。如果我从LIKE语句中删除OR，则搜索工作正常。如何使用LIKE语句正确搜索多列？

这是一个无工作声明的示例，其中忽略了价格

SELECT * 
  FROM table 
 WHERE Price BETWEEN 0 AND 500000 
   AND class_id = 1 
   AND TotalSqFt BETWEEN 0 AND 999999999 
   AND Acres BETWEEN 0 AND 999999999 
   AND InclusionsFeatures LIKE '%horse%' 
    OR Remarks LIKE '%horse%' 
ORDER 
    BY Price DESC

此语句正常工作，但现在我只能在一个列上执行LIKE查询。

SELECT * FROM table WHERE Price BETWEEN 0 AND 500000 AND class_id = 1 AND TotalSqFt BETWEEN 0 AND 999999999 AND Acres BETWEEN 0 AND 999999999 AND InclusionsFeatures LIKE '%horse%' ORDER BY Price DESC

Answer 1

在第一条语句中，当您在最后一个AND之后添加OR时，Mysql会一直执行直到运行OR。如果通过OR条件，则AND之前的All将忽略。因此查询无法正确运行。

查看此查询：

SELECT
    * 
FROM
TABLE 
WHERE
    Price BETWEEN 0 
    AND 500000 
    AND class_id = 1 
    AND TotalSqFt BETWEEN 0 
    AND 999999999 
    AND Acres BETWEEN 0 
    AND 999999999 
    AND (InclusionsFeatures LIKE '%horse%' OR Remarks LIKE '%horse%' ) 
ORDER BY
    Price DESC

通过将您的LIKES按括号分组，它将使用AND将括号内的条件与所有其他条件进行检查。因此，查询返回的数据将匹配括号内的条件和所有其他条件。

Answer 2

您混用了AND和OR运算符。因此，您可以正确附上条件才能正常工作。对于您的OR条件，可以将其围起来如下：

SELECT * 
FROM table 
WHERE (Price BETWEEN 0 AND 500000) AND 
      (class_id = 1) AND 
      (TotalSqFt BETWEEN 0 AND 999999999) AND 
      (Acres BETWEEN 0 AND 999999999) AND 
      (
       (InclusionsFeatures LIKE '%horse%') OR (Remarks LIKE '%horse%')
      )
ORDER BY Price DESC

MySQL LIKE语句返回奇数结果

2 个答案: