sql数据库查询语句 sql2008查询语句

1、Alter table LOANS add [备注说明] varchar(20) 2、Select 出版社,KCSL as 库存量,总价/KCSL as 平均单价 From (Select 出版社,count(索书号) as KCSL,sum(价格.

:select * from table1 where 范围 :insert into table1(field1,field2) values(value1,value2)delete from table1 where 范围 :update table1 set field1=value1 where 范围 :select .

create table Dept(deptno number primary key ,deptname varchar(50),peonum number)我刚试了一个表,然后就发现不对,╮(╯▽╰)╭

其实用不到那么多`` 像下面的: 把查询条件装到一个User对象里 //得到要查询的sql语句 private String getSql(User user) { // TODO Auto-generated method stub StringBuffer .

select distinct(e.sid),e.snamefrom sc d, student ewhere d.cid in ( select b.cid from student a, course b, sc c where a.sname='李明' and a.sid=c.sid and c.cid = b.cid)and d.sid=e.sid分给我吧,子查询里是李明选的课程ID,然后外查询,通关中间的关联表,找到跟student的关系,最终得出结果

1) select (select top 1 名字 from 表 where 表.科目=x.科目 order by 成绩) as 名字, . order by 总成绩 5)没看懂下句为查询各科平均成绩,不及格的人数select 科目, avg.

得到表中除Col1、Col2的所有列 例如:userno_fm、userno_to create table test( . userno_to varchar(10), username varchar(10)) select * from test declare @sql varchar(.

select * from table1 where 平均成绩>60 select 姓名 from table1 where 性别='0' and . SQL是结构化查询设计语言的缩写,:SQL server 2000则是微软的关系数据库产品,.

..为点分真不容易1 select * from StuInfo2 select 考号,姓名,语文,数学,英语 from StuMarks3 select s1.考号,s1.姓名,s1.性别,s2.计算机基础,s2.SQL数据库 from .

1.SELECT E.YGBANE,E.YGBH,A.YGYX FROM E LEFT JOIN A ON E.YGBH=A.YGBH WHERE E.YGBM='后勤部' 2.SELECT E.YGNAME,E.YGBH,E.YGBM FROM E LEFT JOIN A ON E.YGBH=A.YGBH WHERE A.NIAN=2007 AND A.YUE=7 AND YGYX BETWEEN 10000 AND 50000这样就可以了.