MYSQL教程MySql Split函数二例

MYSQL应用CREATE  FUNCTION `fun_split_total`(str varchar(200),delimiter varchar(4)) RETURNS int(11)
begin
return 1+(length(str) - length(replace(str,delimiter,'')));
end;

MYSQL应用/*str_index=fun_split_total('1,2,3',',');*/

CREATE  FUNCTION `fun_split_string`( str varchar(200),delimiter varchar(4),str_index int) RETURNS varchar(255) CHARSET utf8
BEGIN 
 declare result varchar(255) default '';  
 set result = reverse(substring_index(reverse(substring_index(str,delimiter,str_index)),delimiter,1)); 
 return result;
 END;