MySql小结

生成32位随机字符串

select replace(uuid(), '-', '');

生成0-100的随机数值

select CEIL((RAND() * 100));

函数声明语法

delimiter //
create procedure myProc() 
begin
declare id INT;
set id=1;
while id < 10 do
insert into students values(id, REPLACE(uuid(), "-", ""),FLOOR(RAND() * 100));
set id=id+1;
end while;
end //

函数调用语法

call myProc();

删除函数

drop procedure myProc;

初始化表

TRUNCATE students;

添加用户

insert into user(host,user,password) values('127.0.0.1','wbl',PASSWORD('123456'));

添加用户并赋予权限

GRANT SELECT,INSERT,UPDATE,DELETE,CREATE,DROP
ON 数据库.数据表
TO '用户名'@'IP地址'
IDENTIFIED BY '密码';

刷新权限

FLUSH PRIVILEGES;