phpmyadmin创建mysql的存储过程

DELIMITER $$
CREATE  PROCEDURE `sp_insert_test_users`(IN `para_count` INT)
BEGIN
    DECLARE p_username varchar(50);
    DECLARE p_countryCallingCode varchar(10) default '86';
    DECLARE p_phone varchar(20);
    DECLARE p_all_phone varchar(20);
    DECLARE p_create_time datetime;    
    DECLARE p_index int default 0;
    DECLARE p_userid int default 0;  
IF para_count > 0 THEN
    SET p_create_time = NOW();
   
    while p_index < para_count do    
        
        select concat(
              substring('ABCDEFGHIJKLMNOPQRSTUVWXYZ', rand()*26 , 1),
              substring('abcdefghijklmnopqrstuvwxyz', rand()*26 , 1),
              substring('abcdefghijklmnopqrstuvwxyz', rand()*26 , 1),
              substring('abcdefghijklmnopqrstuvwxyz', rand()*26 , 1),
              substring('abcdefghijklmnopqrstuvwxyz', rand()*26 , 1),
              substring('abcdefghijklmnopqrstuvwxyz', rand()*26 , 1),
              substring('abcdefghijklmnopqrstuvwxyz', rand()*26 , 1),
              substring('abcdefghijklmnopqrstuvwxyz', rand()*26 , 1)
             ) into p_username;
             
        select concat(
              '139',
              substring('1234567890', rand()* 10 , 1),
              substring('1234567890', rand()* 10 , 1),
              substring('1234567890', rand()* 10 , 1),
              substring('1234567890', rand()* 10 , 1),
              substring('1234567890', rand()* 10 , 1),
              substring('1234567890', rand()* 10 , 1),
              substring('1234567890', rand()* 10 , 1),
              substring('1234567890', rand()* 10 , 1)
             ) into p_phone;
        
        if not exists ( select 1 from users where username = p_username or phone = p_phone ) 
        and length(p_username) = 8 and length(p_phone) = 11
        then 
        
            set p_all_phone = concat(p_countryCallingCode,';',p_phone);
            
            INSERT INTO `users`
            (`username`, `countryCallingCode`, `phone`, `_phone`, 
            `group`,  `created_at`, `updated_at`) 
            VALUES 
            (p_username,p_countryCallingCode,p_phone,p_all_phone,
            'user', p_create_time, p_create_time);
            
             select @@IDENTITY into p_userid;
            
            INSERT INTO `users_test_mock`
            (`userid`,`username`, `countryCallingCode`, `phone`) 
            VALUES 
            (p_userid,p_username,p_countryCallingCode,p_phone);
            
            SET p_index = p_index + 1;
            
        end if;
    
    
    end while;
   
        
END IF;

END$$
DELIMITER ;