create table `blog_article` (
`uid` varchar(64) not null,
`rangid` bigint(20) not null default '0',
`lon` varchar(32) not null,
`lat` varchar(32) not null,
`name` varchar(64) null default null
)collate='utf8_general_ci'
engine=innodb
; insert into blog_article values ('123', '111', '100','11','zzz');
insert into blog_article values ('123', '112', '100','11','zzz');
insert into blog_article values ('121', '222', '200','21','qq');
insert into blog_article values ('121', '221', '200','21','qq');
insert into blog_article values ('120', '333', '300','33','qa');
insert into blog_article values ('120', '332', '300','33','qa');
insert into blog_article values ('119', '444', '44','400','mm');
insert into blog_article values ('119', '441', '44','400','mm');
insert into blog_article values ('118', '555', '55','500','nnn');
insert into blog_article values ('118', '554', '55','500','nnn');
insert into blog_article values ('117', '666', '66','600','kkk');
insert into blog_article values ('117', '606', '66','600','kkk');
insert into blog_article values ('116', '777', '77','700','ddd');
insert into blog_article values ('116', '787', '77','700','ddd');
insert into blog_article values ('115', '888', '800','800','ff');
insert into blog_article values ('115', '888', '800','88','ff');
insert into blog_article values ('114', '999', '900','88','pp');
insert into blog_article values ('114', '999', '900','99','pp');
drop procedure if exists proc_cursor;
delimiter $$
create procedure proc_cursor()
begin
declare done int default false; -- 遍歷資料結束標誌定義
declare struid varchar(64);
declare rangidint bigint(20);
declare strlon varchar(32);
declare strlat varchar(32);
declare rs cursor for select uid, rangid,lon,lat from testdb.blog_article where uid in (select uid from (select uid,count(1) as num from blog_article group by uid) t where t.num>1); -- 定義游標
declare continue handler for sqlstate '02000' set done = true; -- 游標結束/異常處理
open rs; -- 結束游標
fetch next from rs into struid, rangidint,strlon,strlat; -- 遍歷游標取值
repeat
if not done then
-- fetch next from rs into strname, straddress; -- 遍歷游標取值放在此處則後面不需要再放
start transaction; -- 開始事務
if (convert(strlon, signed) + convert(strlat, signed)) != rangidint then
insert into testdb.blog_article_copy(uid, rangid,lon,lat) values( struid, rangidint, strlon, strlat);
delete from testdb.blog_article where uid = struid and rangid = rangidint;
end if;
commit; -- 提交事務
end if;
fetch next from rs into struid, rangidint,strlon,strlat; -- 迴圈遍歷處理
until done end repeat; -- 結束遍歷
close rs; -- 關閉游標
end$$
delimiter ;
call proc_cursor();
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