问一个论坛短消息群发的sql语句。
上面是DISCUZ的短消息群发数据表，请问怎么查询用户没有阅读的短消息呢？
------解决方案--------------------
select * from 用户记录表 a inner join 消息表 b on a.gpmid=b.id where a.status=0
------解决方案--------------------
不知道你的数据是如何分步的，建议贴出测试数据和期望结果，并简单描述一下逻辑关系。
------解决方案--------------------
selece uid pre_common_member_grouppm where status=0
将得到所有为阅读的短消息的用户
至于以后要如何做，那要由你决定，我不能代庖
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