MySQL 关于存储过程的操作

-- 存储过程 --> 一组为了完成特定功能的SQL语句集

-- IN 传入参数
delimiter //
create procedure mysql (
    IN id int
)
begin
    select * from table_name where id = id;
end;
//
delimiter;

--其中in是传进去的变量;
drop procedure mysql;//销毁这个存储过程
--调用存储过程
call mysql(1);

-- OUT 输出参数
delimiter //
create procedure demo
(in id1 int,OUT ids int)
begin
    select id into ids from users where id = id1;
    select ids;
end
//
delimiter ;

--调用
set @result;
call demo(1,@result);

--INOUT输入输出
delimiter //
create procedure demo (inout ids int)
begin
    select id into ids from users where id =ids;
    select ids;
end
//
delimiter ;

--调用
set @result1 =2;
call demo(@result1);

示例：

delimiter //
create procedure insertData()
begin
    declare i int default 1;
    while i <= 6388 do
        insert into healerjean1(name,email,message) values(i,(i+1),(i+2));
        set i = i + 1;
    end while;
end
//
delimiter ;