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求 sql select怎么同时查询2个值
- WBOYOriginal
- 2016-06-23 14:23:201738browse
比如 在数据库中 一个键hide=y和hide=n 要同时实现出等于y和n的数据要怎么写
sql的语句不是很懂 我是这么写的 虽然没报错
SELECT * FROM blog WHERE type='$type' $author and hide='y' and hide='n' $condition $limit
但是却都不显示
SELECT * FROM blog WHERE type='$type' $author and hide='y' $condition $limit
这样就可以 但是这能显示等于Y的 不能实现出等于n的
回复讨论(解决方案)
你的 $author $condition 分别是什么？
类似的，修改看看
SELECT * FROM `blog` WHERE `type` = "$type" AND `author` = "$author" AND `hide` in ("y", "n")LIMIT 用or不就可以了嘛。干嘛要用and呀~怎么可能同时等于y又等于n
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