日期:2014-05-16  浏览次数:20881 次

Mysql 存储过程中 游标使用遇到问题了
CREATE FUNCTION func_get_split_string(  
  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


CREATE PROCEDURE split_data()  
  BEGIN  
  DECLARE tid VARCHAR(32);  
  DECLARE address_name VARCHAR(200);  
  DECLARE province_name VARCHAR(200);  
  DECLARE city_name VARCHAR(200);  
  DECLARE zone_name VARCHAR(200);  
   
  DECLARE province_id VARCHAR(200);  
  DECLARE city_id VARCHAR(200);  
  DECLARE zone_id VARCHAR(200);  
   
  DECLARE done INT DEFAULT 0;  
  
   
  DECLARE cur CURSOR FOR SELECT id,address FROM tn_company;  
  DECLARE CONTINUE HANDLER FOR NOT FOUND SET done = 1;  
   
   
  OPEN cur;  
  address_lb:LOOP  
  FETCH cur INTO tid,address_name;  
  SELECT func_get_split_string(address_name,' ',2) INTO province_name;  
  SELECT func_get_split_string(address_name,' ',3) INTO city_name;  
  SELECT func_get_split_string(address_name,' ',4) INTO zone_name;  
   
  SELECT idcode INTO province_id FROM tl_district WHERE name = province_name and LENGTH(idcode)=2; 
SELECT idcode INTO city_id FROM tl_district WHERE name = city_name AND LENGTH(idcode)=4 and parentId=province_id; 
  SELECT idcode INTO zone_id FROM tl_district WHERE name like zone_name AND LENGTH(idcode)=6 and parentid=city_id LIMIT 1;
   
  UPDATE tn_company  
  SET address_province = province_name,  
  address_city = city_name,  
  address_zone = zone_name,  
  provinceId = province_id,  
  cityId = city_id,  
  zoneId = zone_id 
  WHERE id = tid;  
   
  IF done = 1 THEN  
  LEAVE address_lb;  
  END IF;  
  END LOOP address_lb;  
   
  CLOSE cur;  
  commit;  
END 

就是将tn_company 表中的字段address 根据空格 分出来 省市区 3个字段,再和tl_district(全国省市区及Id)表中做对
比,去其idcode,存入tn_company表中对应的字段里,不知道为什么,运行没有错误,就是一个字段也插不进去,而且我是70w条数据,几秒就运行完了, 不知道是不是哪写的不对? 高人上座,求指教!

------解决方案--------------------
MYSQL要转到MYSQL版块的,知道MSSQL的路过。
------解决方案--------------------
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引用:

MYSQL要转到MYSQL版块的,知道MSSQL的路过。
姐姐,俺不会转呀,第一次发帖,见谅! 有问题,求指导!

------解决方案--------------------
管理菜单,移动,找MYSQL版块。要不我给你移过去?
------解决方案--------------------
MY SQL 也有存储过程的啊?