mysql - 不像 MySQL select 语句不返回正确的结果

Question

$query = "
    SELECT distinct count(*) as num 
    FROM table1 ge 
    INNER JOIN table 2 ad 
    ON ge.ID = ad.ID 
    WHERE ge.ID = ad.ID AND ge.field LIKE '".mysql_real_escape_string($_REQUEST['search'])."%' 
    AND ge.field not like '%word%' 
    order by ge.field ASC"

或者

$query = "
    SELECT * 
    FROM table1 ge 
    INNER JOIN table 2 ad 
    ON ge.ID = ad.ID 
    WHERE ge.ID = ad.ID AND ge.field LIKE '".mysql_real_escape_string($_REQUEST['search'])."%' 
    AND ge.field not like '%word%' 
    order by ge.field ASC"

似乎无法从此查询中获得正确的结果，任何带有 $word 的记录都不应显示？非常感谢任何帮助...

谢谢

Answer 1

最好的方法是调试变量的值并尝试直接在数据库上执行。

看起来您尝试使用 'word' 作为字符串，而不是将其用作变量。

$query = "
    SELECT * 
    FROM table1 ge 
    INNER JOIN table 2 ad 
    ON ge.ID = ad.ID 
    WHERE ge.ID = ad.ID AND ge.field LIKE '".mysql_real_escape_string($_REQUEST['search'])."%' 
    AND ge.field not like '%".$word."%' 
    order by ge.field ASC"