MySQL存储过程实现split MySQL drop PROCEDURE if exists procedure_split;CREATE PROCEDURE `procedure_split`( inputstring varchar(1000), delim char(1))begin declare strlen int DEFAULT length(inputstring); declare last_index int DEFAULT 0; decla
MySQL存储过程实现split MySQL
drop PROCEDURE if exists procedure_split;
CREATE PROCEDURE `procedure_split`(
inputstring varchar(1000),
delim char(1)
)
begin
declare strlen int DEFAULT length(inputstring);
declare last_index int DEFAULT 0;
declare cur_index int DEFAULT 1;
declare cur_char VARCHAR(200);
declare len int;
drop temporary table if exists splittable;
create TEMPORARY table splittable(
value VARCHAR(20)
) ;
WHILE(cur_index<=strlen) DO
begin
if substring(inputstring from cur_index for 1)=delim or cur_index=strlen then
set len=cur_index-last_index-1;
if cur_index=strlen then
set len=len+1;
end if;
insert into splittable(`value`)values(substring(inputstring from (last_index+1) for len));
set last_index=cur_index;
end if;
set cur_index=cur_index+1;
END;
end while;
end ;
call PROCEDURE_split('中国,开源,社区',',');
select * from splittable;
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