navicat创建过程一直出错，但检查不出来是什么错误，求解答

Question

检查觉得是没有问题的，不过一直保存不下来，一直报错，不知道是哪里出现了问题，求解答！！

CREATE PROCEDURE `早晚高峰查询`(IN param_table_list VARCHAR(255), OUT param_sql_query VARCHAR(255))    
BEGIN    
DECLARE done INT DEFAULT FALSE;    
DECLARE table_list VARCHAR(255);  -- 声明变量    
SET table_list = '';  -- 初始化变量    
DECLARE table_count INT(255);  -- 声明变量    
SET table_count = 1;  -- 赋值    
DECLARE table_name VARCHAR(255);  -- 声明变量    
DECLARE sql_query VARCHAR(255);  -- 声明变量    
      
WHILE NOT done      
BEGIN      
    SET table_name = 'all_data_' + CAST(table_count AS VARCHAR(2));      
          
    IF table_list = ''      
    BEGIN      
        SET table_list = table_name;      
    END      
    ELSE      
    BEGIN      
        SET table_list = table_list + ', ' + table_name;      
    END      
          
    SET table_count = table_count + 1;      
    IF table_count > 14 THEN  -- 修改条件判断    
        SET done = TRUE;    
    END IF;    
END      
      
SET sql_query = 'SELECT * FROM (' +       
    SUBSTRING(table_list, 1, LENGTH(table_list) - 1) + ') AS tables' +      
    ' WHERE HOUR(pass_time) >= 7 AND HOUR(pass_time) < 9';      
      
SET param_sql_query = sql_query;  -- 将输出参数设置为sql_query的值    
END

报错语句如下：
1064 - You have an error in your SOL syntax; check the manual that corresponds to your MysOl. server version for the right syntax touse nearDECLARE table count INT(255): -- 声明变量SET table count = 1: -- G' at line 6

Answer 1

声明变量int后不要写数字