[转]Mysql切割字符串

# 函数：func_split_TotalLength 
DELIMITER $$ 
DROP function IF EXISTS `func_split_TotalLength` $$ 
CREATE DEFINER=`root`@`%` FUNCTION `func_split_TotalLength` 
(f_string varchar(1000),f_delimiter varchar(5)) RETURNS int(11) 
BEGIN 
    # 计算传入字符串的总length 
    return 1+(length(f_string) - length(replace(f_string,f_delimiter,''))); 
END$$ 
DELIMITER; 

 

# 函数：func_split 
DELIMITER $$ 
DROP function IF EXISTS `func_split` $$ 
CREATE DEFINER=`root`@`%` FUNCTION `func_split` 
(f_string varchar(1000),f_delimiter varchar(5),f_order int) RETURNS varchar(255) CHARSET utf8 
BEGIN 
    # 拆分传入的字符串，返回拆分后的新字符串 
    declare result varchar(255) default ''; 
    set result = reverse(substring_index(reverse(substring_index(f_string,f_delimiter,f_order)),f_delimiter,1)); 
    return result; 
END$$ 
DELIMITER;

 

# 存储过程：splitString 
DELIMITER $$ 
DROP PROCEDURE IF EXISTS `splitString` $$ 
CREATE PROCEDURE `splitString` 
(IN f_string varchar(1000),IN f_delimiter varchar(5)) 
BEGIN 
    # 拆分结果 
    declare cnt int default 0; 
    declare i int default 0; 
    set cnt = func_split_TotalLength(f_string,f_delimiter); 
    DROP TABLE IF EXISTS `tmp_split`; 
    create temporary table `tmp_split` (`status` varchar(128) not null) DEFAULT CHARSET=utf8; 
    while i < cnt 
    do 
        set i = i + 1; 
        insert into tmp_split(`status`) values (func_split(f_string,f_delimiter,i)); 
    end while; 
END$$ 
DELIMITER; 

 转自：MySQL中利用存储过程分割字符串的方法