【单选题】已知关系模式Student (S# char(8) Primary key, Sname char(10), Ssex char(2),Sage integer, D# char(2), Sclass char(6)),在此基础上定义了视图create view CStud(S#, Sname, Sclass) as ( select S#, Sname, Sclass from Student ...
A.
Insert into CStud Values (98030104, “张三丰”, “980301”);
B.
insert into CStud values (“98030104”, 张三丰, Null, Null, “03” , “980301”);
C.
Insert into CStud Values ( “98030104”, “张三丰”, “980301” );
D.
Insert into CStud values (Null, “张三丰”, “980301”);
【单选题】已知关系模式Student (S# char(8) Primary key, Sname char(10), Ssex char(2),Sage integer, D# char(2), Sclass char(6)),在此基础上定义了视图create view CStud(S#, Sname, Sclass) as ( select S#, Sname, Sclass from Student ...
A.
Insert into CStud Values ( “98030104”, “张三丰”, “980301” );
B.
Insert into CStud Values (98030104, “张三丰”, “980301”);
C.
insert into CStud values (“98030104”, 张三丰, Null, Null, “03” , “980301”);
D.
insert into CStud values (Null, “张三丰”, “980301”);
【判断题】一个类可以有多个构造函数,但只能有一个默认构造函数。
【单选题】编辑绘制完成的图形主要是用( )进行编辑。
【单选题】已知定义char **s;,下列语句正确的是( )。
【单选题】有关交叉反应的描述,正确的是
B.
由于不同抗原分子上存在相同或相似抗原表位所致
【单选题】孙中山先生所说的“做大事”的精神,体现在一名外科医生身上,指的是( )这一精神品质
【单选题】已知关系模式Student (S# char(8) Primary key, Sname char(10), Ssex char(2),Sage integer, D# char(2), Sclass char(6)),在此基础上定义了视图create view CStud(S#, Sname, Sclass) as ( select S#, Sname, Sclass from Student ...
A.
Insert into CStud Values (98030104, “张三丰”, “980301”);
B.
insert into CStud values (“98030104”, 张三丰, Null, Null, “03” , “980301”);
C.
Insert into CStud Values ( “98030104”, “张三丰”, “980301” );
D.
insert into CStud values (Null, “张三丰”, “980301”);
【单选题】已知关系模式 Student (S# char(8) Primary key, Sname char(10), Ssex char(2),Sage integer, D# char(2), Sclass char(6)) ,在此基础上定义了视图 create view CStud(S#, Sname, Sclass) as ( select S#, Sname, Sclass fro...
A.
Insert into CStud Values ( “ 98030104 ” , “张三丰” , “ 980301 ” );
B.
insert into CStud values (Null, “张三丰” , “ 980301 ” );
C.
Insert into CStud Values (98030104, “张三丰” , “ 980301 ” );
D.
insert into CStud values ( “ 98030104 ” , 张三丰 , Null, Null, “ 03 ” , “ 980301 ” );