A、 CREATE USER 'user2'@'localhost' IDENTIFIED BY '123';
B、 CREATE USER user2@localhost IDENTIFIED BY 123;
C、 CREATE USER 'user2'@'localhost' IDENTIFIED TO '123';
D、 CREATE USER user2@localhost IDENTIFIED TO '123';
答案:A
A、 CREATE USER 'user2'@'localhost' IDENTIFIED BY '123';
B、 CREATE USER user2@localhost IDENTIFIED BY 123;
C、 CREATE USER 'user2'@'localhost' IDENTIFIED TO '123';
D、 CREATE USER user2@localhost IDENTIFIED TO '123';
答案:A
A. ND关键字时,只要记录满足任意一个条件就会被查询出来
A. CREATE DATABASE
B. CREATE TABLE
C. CREATE DATABASES
D. CREATE DB
A. select pid from tbⱣⱤorder where count(pid)>3;
B. select pid from tbⱣⱤorder where max(pid)>3;
C. select pid from tbⱣⱤorder group by pid having count(pid)>3;
D. select pid from tbⱣⱤorder group by pid having count(pid)>=3;
A. SELECT * FROM view_stu2;
B. CALL view_stu2(math,chin,sum);
C. SELECT * FROM view_stu2(math,chin,sum);
D. SELECT view_stu2;
A. sno IS NULL
B. sno=NULL
C. sno NULL OR NOT
D. 以上方式皆可
A. SELECT @@EVENTⱣⱤSCHEDULER;
B. SET GLOBAL EVENTⱣⱤSCHEDULER=1;
C. SET GLOBAL EVENTⱣⱤSCHEDULER=TRUE;
D. SET GLOBAL EVENTⱣⱤSCHEDULER=ON;
A. "王%"
B. "王_"
C. "王_ _"
D. "%王%"