初学存储过程

DELIMITER // 定义写存储过程中的结束符为 //

创建存储过程1：

create procedure proce_userinfo(in name varchar(10) ,int pwd varchar(10),out flag int)

begin

select power from user where Username=name and password=pwd into flag;

end //

创建存储过程2:

create procedure proc_reg(in name varchar(10),in pwd varchar(10),out flag int)
begin
set @count=0;
select count(*) from users where username=name into @count;
if @count>0 then

set flag=0;
else
set flag=1;
insert into users(username,passwords)values (name,pwd);
end if;
end

declare 只是声明，set既声明又赋值