多做题，通过考试没问题！
Oracle认证考试
题库首页
>
其他计算机考试
>
Oracle认证考试
Which constraint can be defined only at the column level? （）
A、UNIQUE
B、NOT NULL
C、CHECK
D、PRIMARY KEY
E、FOREIGN KEY
查看答案
微信扫一扫手机做题
最新试题
·
Evaluate this SQL s
·
From SQL*Plus, you
·
Which two statements
·
Evaluate these two
·
Which clause should
·
Which two tasks can
·
Examine the structu
·
ClicktheExhibitbutto
·
The CUSTOMERS table
·
You need to change
热门试题
·
Evaluate the SQL sta
·
You define a multipl
·
You need to create
·
TheCUSTOMERStablehas
·
Which two statements
·
Which SQL statement
·
What is true regardi
·
Which is an iSQL*Plu
·
Which two tasks can
·
What is true about s
