不知道這么解決、、、create?database?[hdu]?on??
(?name?=?hdu,?
??filename?=?N'C:\Program?Files\Microsoft?SQL?Server\MSSQL10_50.MSSQLSERVER\MSSQL\DATA\hdu.mdf'?,?
??size?=?4?,?
??maxsize?=?100,?
??filegrowth?=?10%?)--表—
use??hdu
?
create?table?Class
?(
??Clno?Char(5)not?null?primary?key?,
??Speciality?VarChar(20)?not?null,
??Iyear?Char(4)?not?null,
??Number?Integer?check(Number>1?and?Number<300),?
??Monitor?Char(7)
)
--1.Student?表--
create?table?Student
?(
??Sno?Char(7)??primary?key,
??Sname?VarChar(20)?not?null?,
??Ssex??Char(2)?not?null?check(Ssex='男'?or?Ssex='女'?)?default?'男',
??Sage??Smallint?check(Sage>14?and?Sage<65),???
??Clno?Char(5)?not?null?foreign?key?references?Class(Clno)
?
?)insert?into?Class?values?('00311','計算機(jī)軟件','2000','120','2000101')
insert?into?Class?values?('00312','計算機(jī)應(yīng)用','2000','140','2000103')
insert?into?Class?values?('01311','計算機(jī)軟件','2001','220','2001103')
go
select?*?from?Class
明明輸入了數(shù)據(jù)，為什么數(shù)據(jù)只能顯示一行？
qq_安安_17
2017-12-06 10:45:24
