sqlserver 数据简单查询

 use StudentManageDB
 go
 select StudentName as 姓名,Gender as 性别,出生日期=birthday
 from Students where Gender='男'

 select 姓名=StudentName,地址和电话=StudentAddress+'【'+PhoneNumber+'】'
 from Students where Gender='男'

 select 总成绩=CSharp+SQLServerDB from ScoreList

 select * from ScoreList
 insert into ScoreList(StudentId,CSharp) values(100009,78)

 select * from ScoreList where SQLServerDB is null

 select StudentName as 姓名,Gender as 性别,出生日期=birthday,所在学校='北京大学'
 from Students where Gender='男'

 select top 5 StudentName,Gender,Birthday from Students

 select top 20 percent StudentName,Gender,Birthday from Students

 select StudentId,(CSharp+5) as C#,DB=SQLServerDB
 from ScoreList where (CSharp+5)>90
 order by CSharp ASC

 select StudentId,(CSharp+5) as C#,DB=SQLServerDB
 from ScoreList where (CSharp+5)>90
 order by CSharp DESC

 select top 3 StudentId,CSharp as C#,DB=SQLServerDB
 from ScoreList
 where StudentId not in(select top 6 StudentId from ScoreList order by SQLServerDB DESC,CSharp DESC )
 order by SQLServerDB DESC,CSharp DESC

 select StudentId,CSharp as C#,DB=SQLServerDB
 from ScoreList
 order by SQLServerDB DESC,CSharp DESC