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Home Backend Development PHP Tutorial 怎么分组查询出4条信息。。。

怎么分组查询出4条信息。。。

Jun 23, 2016 pm 02:40 PM

ID    UID   TUID  MSG
1      120   125    sadasf
2      125   120   adaf
3      120   125   asfafaff
4      125   120   afasfa

要如下图效果:


回复讨论(解决方案)

详细描述下需求,根据什么分组。最后结果是什么?

详细描述下需求,根据什么分组。最后结果是什么?

结果跟上面的图片一样

A用户跟B用户的最后通话记录显示在列表 ,然后计算出他们总共有几条信息来玩

sql语句:select * from 表名 where (UID=120 or UID=125) and (TUID=120 or TUID=125),执行这个sql语句,把结果集循环显示就行了,记录集条数就是信息个数

sql语句:select * from 表名 where (UID=120 or UID=125) and (TUID=120 or TUID=125),执行这个sql语句,把结果集循环显示就行了,记录集条数就是信息个数

看清需求不要瞎回答~!!
你这样我一条
select * from 表 where uid = 125 or tuid = 125 就全部查询出来

select * from 表名 where (UID=120 and UID=125) or (TUID=120 and TUID=125)


sql语句:select * from 表名 where (UID=120 or UID=125) and (TUID=120 or TUID=125),执行这个sql语句,把结果集循环显示就行了,记录集条数就是信息个数

看清需求不要瞎回答~!!
你这样我一条
select * from 表 where uid = 125 or tuid = 125 就全部查询出来

你自己的说法让人误解,什么叫瞎回答。尼玛,这年头问问题都这么拽了阿 !你写的这个2b语句是确实能读出这4条,但这只下你表里只有120和125对话两个用户对话的情况!算了。。。跑错地方了

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