相关考题
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单项选择题
下列那一条语句可以实现快速的复制一张数据库表()
A.select *into b from a where 1< >1;
B.creat table b as select *from a where 0=1;
C.insert into b as select *from a where 1< >1;
D.insert into b select *from a where 1< >1; -
单项选择题
int 类型占用()个字节?
A.2
B.4
C.8
D.16 -
单项选择题
String a =new String(“1”+”2”)最终创建了几个对象()
A.1
B.2
C.3
D.4
