前提：
表一、 ddm_demand
| system_id | demand_id | quotate_end_team |
| 1 | 1 | team1，team5，team2 |
| 1 | 2 | tea3，team1，team，4 |
pk：quotate_end_team、demand_id；
表二、 mc_team
| team_nam | view_order |
| team1 | 1 |
| team2 | 2 |
解決問題：
將表一中的quotate_end_team字段按照表二的view_order重新排序。
方法：
DELIMITER $$
DROP PROCEDURE IF EXISTS order_team_name $$
CREATE PROCEDURE order_team_name()
BEGIN
declare order_before_teams text ;
declare temp_team_nam text;
declare systemId decimal(10,0) unsigned;
declare demandId char(6);
declare done int;
-- 定義遊標1
DECLARE rs_cursor CURSOR FOR SELECT system_id,demand_id,quotate_end_team FROM ddm_demand;
DECLARE CONTINUE HANDLER FOR NOT FOUND SET done=1;
open rs_cursor;
cursor_loop:loop
FETCH rs_cursor into systemId,demandId,order_before_teams;
if done=1 then
leave cursor_loop;
end if;
if order_before_teams is not null and order_before_teams <> '' then
SET @sqlstr = concat("where team_nam in ('",replace(order_before_teams,"，","','"),"');");
SET @sqlstr = concat("CREATE VIEW temporary_team_view as SELECT team_nam,view_order FROM mc_team ",@sqlstr);
-- DROP VIEW IF EXISTS temporary_team_view;
PREPARE stmt FROM @sqlstr;
EXECUTE stmt;
-- 調用遊標2
CALL update_ddm_demand(systemId,demandId);
drop view temporary_team_view;
end if;
end loop cursor_loop;
close rs_cursor;
END$$
DROP PROCEDURE IF EXISTS update_ddm_demand $$
CREATE PROCEDURE update_ddm_demand(systemId decimal(10,0) unsigned,demandId char(6))
BEGIN
declare temp_team_nam text;
declare order_after_teams text;
declare done int;
-- 定義遊標2
DECLARE rs_cursor CURSOR FOR SELECT team_nam FROM temporary_team_view order by view_order;
DECLARE CONTINUE HANDLER FOR NOT FOUND SET done=1;
SET order_after_teams = "";
open rs_cursor;
cursor_loop:loop
FETCH rs_cursor into temp_team_nam;
if done=1 then
leave cursor_loop;
end if;
-- 更新表
SET order_after_teams = concat(order_after_teams,"，",temp_team_nam);
end loop cursor_loop;
update ddm_demand set quotate_end_team = subString(order_after_teams,2) where system_id = systemId and demand_id = demandId;
close rs_cursor;
END$$
DELIMITER ;
call order_team_name;