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我有以下查询从数据库中选择内容:
mysql_query("SELECT * FROM categories order by id desc EXCEPT WHERE id = $post_id") or die(mysql_error());
我想要做的是选择“类别”表中的所有列,按 id 降序排列,除非列“id”等于变量 $post_id。
但是,这不起作用。我对这类东西比较陌生,所以你们能给我一个正确方向的指针吗?我真的很感激。
谢谢!
试试这个:
SELECT * FROM categories WHERE id != $post_id order by id desc /* except = not equal */