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我用下面的查询:MySQL的 - 选择未知科拉姆WHERE子句
$sql = $db->Query("SELECT a.id, a.t_name, a.cpc FROM twitter a LEFT JOIN users b ON b.id = a.user LEFT JOIN followed c ON c.user_id = '".$data['id']."' AND c.site_id = a.id WHERE a.active = '0' AND (b.coins >= a.cpc AND a.cpc >= '2') AND (c.site_id IS NULL AND a.user !='".$data['id']."')".$dbt_value." ORDER BY a.cpc DESC".($site['mysql_random'] == 1 ? ', RAND()' : '')." LIMIT 14");
但我想补充的:
AND (a.d_max > '0' OR a.d_max = u) AND (a.max > '0' OR a.max = u)
所以我补充说,在到:
$sql = $db->Query("SELECT a.id, a.t_name, a.cpc FROM twitter a LEFT JOIN users b ON b.id = a.user LEFT JOIN followed c ON c.user_id = '".$data['id']."' AND c.site_id = a.id WHERE a.active = '0' AND (a.d_max > '0' OR a.d_max = u) AND (a.max > '0' OR a.max = u) AND (b.coins >= a.cpc AND a.cpc >= '2') AND (c.site_id IS NULL AND a.user !='".$data['id']."')".$dbt_value." ORDER BY a.cpc DESC".($site['mysql_random'] == 1 ? ', RAND()' : '')." LIMIT 14");
但是,我收到以下错误:
SQL错误:'where子句'中的'u'列未知:
我知道这应该是如此简单,但我只是想念它,你们能够发现有什么问题吗?
没有现场'u',你的意思是文字上的''u''(注意引号)? – Wrikken 2013-03-13 18:25:53
我必须列d_max和max可以有任何数字或字母u。我想选出数字大于0的行或字母u – CustomNet 2013-03-13 18:26:58
因此,正如我所说的,使用''u'',而不是'u'。 – Wrikken 2013-03-13 18:29:30