SQL语句 (A Left Outer join B On) Where A.Fld *= B.Fld
来源:互联网 发布:鼠标手写板软件下载 编辑:程序博客网 时间:2024/06/11 07:47
1
insert into atest values( '00009','GPF',26,100,100,120,'')
insert into atest2
select * from atest where id = 00002
insert into atest2 ( id, age,name )
select id, age,name from atest where id = 00009
2
select cardno, avg(grade) as avg
from agrade where cardno = 0102
group by cardno
having avg(grade) > 0
select cardno, max(grade) as avg
from agrade where cardno = 0102
group by cardno
having max(grade) >70
select cardno, max(grade) as avg
from agrade
group by cardno
having avg(grade) >70
select top 1 cardno, avg(grade) as AVG
from agrade
group by cardno
having avg(grade) <70 order by avg(grade) desc
3
select *
from agrade a
where exists
(
select * from aclass b where b.class =009 and a.cardno = 0101
)
4
select *
from agrade a left outer join aclass b on
a.biko = b.teacher where a.cardno = 0101
5 左外Link(*=)
select a.*, b.name as Class, c.memo as Sex from
astudent a, aclass b, asex c
where a.sex *= c.sex and
a.class *= b.class
and a.age > 30
- SQL语句 (A Left Outer join B On) Where A.Fld *= B.Fld
- 左连接 A left join B on A.a = B.a and/where的区别
- 关于 FROM a,b 和 a LEFT JOIN b on 的区别 ...
- from a left join b on , from a right join on b,from a inner join b on 用的心得
- left outer join 的where语句写法
- In SQL, what is the difference between a left join and a left outer join?
- sql left join on / where
- [转载]SQL语句中LEFT JOIN ON WHERE和LEFT JOIN ON AND的区别
- 内连接查询 (select * from a join b on a.id = b.id) 与 关联查询 (select * from a , b where a.id = b.id)的区别
- left join 和 left outer join 的区别 通俗的讲: A left join B 的连接的记录数与A表的记录数同 A right jo
- 一个sql语句(left outer join)
- 关于A left join B,A是否一定是主表?
- sql的left(a,b)与right(a,b)函数
- LEFT OUTER JOIN with ON condition or WHERE condition?
- .net as a inner join ta_1 as b on a.id = b.id
- SQL Server: left join on 和 left join where区别
- sql语句中left join、inner join中的on与where的区别
- sql语句中left join、inner join中的on与where的区别
- JAVA基础知识(5)
- [转]C++字符串完全指引之一 win32字字符编码
- JAVA基础知识(6)
- [爆笑网文]10年假球白练了!----伤心球迷致中国足球队的一封信
- 用JavaScript解决ASP.NET服务器控件造成的刷新问题
- SQL语句 (A Left Outer join B On) Where A.Fld *= B.Fld
- [转]C++字符串完全指引之二 —— 字符串封装类
- [转]CString 操作指南
- perl embeded into c++ 完全攻略
- [转]CString实现原理简单介绍
- 一些不错的资源(收藏,出处:http://search.csdn.net/Expert/topic/2480/2480003.xml?temp=.2231562)
- [原创]关于AOP的思考
- 我们小组的H.264学习过程(供大家参考)
- [转]编写一个STL中的CString类