我选择记录并按日期和uid(这不是主键)对它们进行分组,并且我需要按日期对这些记录进行分页,我该怎么办?
例如:mysql:如何限制查询?
uid date 1 2012-01-10 2 2012-01-10 3 2012-01-09 3 2012-01-09 3 2012-01-11
SQL:
SELECT date, uid
FROM users
GROUP by date,`uid`
结果:
uid date 1 2012-01-10 2 2012-01-10 3 2012-01-09 3 2012-01-11
因为我需要页面按日期的记录,如果我使用SQL这样的:
SELECT date, uid
FROM users
GROUP by date,`uid`
LIMIT 0,2
然后我只是得到这样的记录:
uid date 1 2012-01-10 2 2012-01-10
。我怎样才能按日期分页记录。 结果我想在页面大小为2:
uid date 1 2012-01-10 2 2012-01-10 3 2012-01-09
'LIMIT 0,3' ...... –