摘要:
其实还有更简单的方法Title还可以把个别的select命令用圆括号,这样,可以对每次查询以及最终结果做出limit和order by 设置。(select * from tbl1 order by colA limit 10) union (select * from tbl2 order by colA limit 10) order by coltimestamp limit 5//查询有效... 阅读全文
posted @ 2009-06-25 16:27
黄小二
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