一个SQL 语句的问题
select top 30 id,chanp,quy,kind,time from daili where time <(select min (time) from (select top 30 time from daili where yesno='1' And quy LIKE '%山西%' order by time DESC) as tblTmp) And yesno='1' And quy LIKE '%山西%' order by time DESC
谁能给我解释一下这个语句是什么意思 ,并且给重点讲解一下
问题点数:20、回复次数:3Top
1 楼liangjianshi(两件事)回复于 2006-07-03 17:05:34 得分 8
select top 30 time from daili where yesno='1' And quy LIKE '%山西%' order by time DESC) as tblTmp 把查询结果做为表tblTmp,
然后select min (time) from.....就是从tblTmp中查询出一个最小的timeTop
2 楼goga21cn()外城◣◥◣◥奔III的预备团员︻$▅▆▇◤()︻︼─一()回复于 2006-07-03 17:49:53 得分 2
学习Top
3 楼atubo1234()回复于 2006-07-03 18:01:44 得分 10
按时间降序找出符合条件[yesno='1' And quy LIKE '%山西%']的30到60条记录Top




