先設置：SET GLOBAL log_bin_trust_function_creators = 1;
1. 函數func_splitStringTotal：將字符串按指定方式分割，并計算單元總數
復制代碼 代碼如下:
DELIMITER $$ CREATE FUNCTION `func_get_splitStringTotal`( f_string varchar(10000),f_delimiter varchar(50) ) RETURNS int(11) BEGIN return 1+(length(f_string) - length(replace(f_string,f_delimiter,''))); END$$ DELIMITER ;
2.函數func_splitString：將字符串按指定方式分割，獲取指定位置的數
復制代碼 代碼如下:
DELIMITER $$ DROP function IF EXISTS `func_splitString` $$ CREATE FUNCTION `func_splitString` ( f_string varchar(1000),f_delimiter varchar(5),f_order int) RETURNS varchar(255) CHARSET utf8 BEGIN
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$$ SELECT func_splitString('1,2,3,4,5,6,7',',',1);
3.過程splitString 將字符串分割，并放到臨時表tmp_split 里面
復制代碼 代碼如下:
DELIMITER $$ DROP PROCEDURE IF EXISTS `splitString` $$ CREATE PROCEDURE `splitString` (IN f_string varchar(1000),IN f_delimiter varchar(5))
BEGIN declare cnt int default 0; declare i int default 0; set cnt = func_split_TotalLength(f_string,f_delimiter); DROP TABLE IF EXISTS `tmp_split`; create temporary table `tmp_split` (`val_` varchar(128) not null) DEFAULT CHARSET=utf8;
while i < cnt do set i = i + 1; insert into tmp_split(`val_`) values (func_split(f_string,f_delimiter,i)); end while; END$$ call splitString('a,s,d,f,g,h,j',','); SELECT * from tmp_split;
