SQL考试，急

SQL考试，急

1.
CREATE TABLE [dbo].[Student](
[Sno] [char](10) NOT NULL,
[Sname] [varchar](20) NULL,
[SSex] [char](10) NULL,
[Sage] [int] NULL,
 CONSTRAINT [PK_Student] PRIMARY KEY CLUSTERED 
(
[Sno] ASC
)WITH (PAD_INDEX  = OFF, STATISTICS_NORECOMPUTE  = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS  = ON, ALLOW_PAGE_LOCKS  = ON) ON [PRIMARY]
) ON [PRIMARY]


GO


--==下面的是说明，你可以不写
EXEC sys.sp_addextendedproperty @name=N'MS_Description', @value=N'学号' , @level0type=N'SCHEMA',@level0name=N'dbo', @level1type=N'TABLE',@level1name=N'Student', @level2type=N'COLUMN',@level2name=N'Sno'
GO


EXEC sys.sp_addextendedproperty @name=N'MS_Description', @value=N'姓名' , @level0type=N'SCHEMA',@level0name=N'dbo', @level1type=N'TABLE',@level1name=N'Student', @level2type=N'COLUMN',@level2name=N'Sname'
GO


EXEC sys.sp_addextendedproperty @name=N'MS_Description', @value=N'性别' , @level0type=N'SCHEMA',@level0name=N'dbo', @level1type=N'TABLE',@level1name=N'Student', @level2type=N'COLUMN',@level2name=N'SSex'
GO


EXEC sys.sp_addextendedproperty @name=N'MS_Description', @value=N'年龄' , @level0type=N'SCHEMA',@level0name=N'dbo', @level1type=N'TABLE',@level1name=N'Student', @level2type=N'COLUMN',@level2name=N'Sage'
GO
--==
2.
INSERT INTO dbo.Student
VALUES('201213001','王晓红','女',20)

--==

3.
CREATE VIEW [dbo].[vGetStudentInfo]
AS
SELECt     Sno, Sname, SSex, Sage
FROM         dbo.Student
WHERe     (Sage > 20) AND (SSex = '女')


GO

因为只有一条数据并且她的年龄等于20，而题目要求是大于20，所以没有数据。

--==
4.题目是不是有点问题，还是我理解错了，应该是输出提示字符吧，输入提示字符的话，没看明白，如果错了，那你再追问，我是按照输出提示来做的
IF EXISTS(SELECt * FROM SYSOBJECTS WHERe XTYPE = 'TR' AND NAME = 'TR_InsertStudentInfo') 
DROP TRIGGER TR_InsertStudentInfo
GO --这个地方是判断是否有触发器如果有先删除了。
CREATE TRIGGER TR_InsertStudentInfo
ON dbo.Student
AFTER INSERT
AS
BEGIN
PRINT '输入一行新数据'
END
GO

--==
如果第四题不太对的话，那么再追问