求教一个mysql语句 select a.column1,tmp.column1 from a ,(select * from b where ...) where ...求教一个mysql语句select a.column1,tmp.column1 from a ,(select * from b where ...) as tmp where ...tmp相当于从另一个表查询出的结果建

求教一个mysql语句 select a.column1,tmp.column1 from a ,(select * from b where ...) where ...求教一个mysql语句select a.column1,tmp.column1 from a ,(select * from b where ...) as tmp where ...tmp相当于从另一个表查询出的结果建 mysql 如何根据 like 、not like 排序比如两个sql语句：select * from tbl where field like %T% ,select * from tbl where field not like %T%,要把第一个的查询结果放到第二个之前,如何合并成一个sql语句. mysql like语句问题SELECT * FROM books WHERE name like MySQL% 但是如果换用下面的查询,返回的结果一样 SELECT * FROM books WHERE name〉=MySQLand name〈MySQM WHERE name〉=MySQLand name〈MySQM 该怎么理解为什么与 MYSQL如何把两个结构相同的表组成一个表查询select * from (select uid,count(*) as sc from `bbs_topics` group by uid) as a,(select uid,count(*) as sc from `bbs_reply` group by uid) as b where a.uid=b.uid我向要取得两个表的数量 mysql like语句问题?用法? mysql中的select语句where条件group by ,having ,order by,limit的顺序及用法写一个把他们都用上的例子 mysql oracle查询一个表,select * from a 所有的字段都是浮点型,想保留3个小数,怎么写语句?类似select round(*,3) from a,还是怎么写? insert into a select * from b 和select * into a from b 这两个语句是不是一样的? vb select case 这个语句? oracle查询语句 select a||','||b||','||c from table where a in('m','n') oracle 中见到一个查询语句,select /*+ index(t1) */ from t1 .,其中/*+ sql语句 后面的(+) select * from t1,t2 where t1.a=t2.b(+) select case 语句里 可以再套select case Mysql中limit的用法mysql> SELECT * FROM table LIMIT 5,10; // 检索记录行 6-15 这样的话,那么mysql> SELECT * FROM table LIMIT 15,15; 就是检索15-15行?怎么理解?15-15行? SQL语句SELECT*FORM TABLE-A WHERE name LIKE‘-mation‘ 的功能?还有SELECT*FORM TABLE-A WHERE name LIKE‘%mation‘ 的功能. 求教大神,选出t1表a列和t2表a相同的数据的sql语句,我这样写对不对?select t1.a from t1,t2 where t1.a=t2.a,这样写好像不对.假如t1表a列有1个2,t2表a列有3个2,就会选出3个2来.我的本意是选出1个2. 求教一 SQL 语句 SELECT * FROM {{table}} WHERE `fleet_end_time`