题目内容

与Where G Between 60 And 100语句等价的子句是( )

A. Where G>60 And G<100
B. Where G>=60 And G<100
C. Where G>60 And G<=100
D. Where G>=60 And G<=100

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在stud表中返回年龄最小的8位同学的信息,使用( )

A. SELECT * FROM studORDER BY birthday DESCLIMIT 8;
B. SELECT * FROM studORDER BY birthday ASCLIMIT 8;
C. SELECT * FROM studORDER BY birthday ASCLIMIT 7;
D. SELECT * FROM studORDER BY birthday DESCLIMIT 7;

模式查找Like '_A%',下面哪个结果是可能的( )

Aili
Bai
C. Bba
D. Cca

SQL语言中,条件表示年龄不在40至50(不包括40和50)之间的表达式为 ( )

A. In (40,50)
B. not Between 40 And 50
C. not Between 39 Or 51
D. not Between 41 ,51

SQL语言中,不是逻辑运算符号的( )

And
B. Not
C. Or
D. Xor

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