不知道各位高手对这个有什么好的见解。
先说说我的逻辑：
1.我们网站有如下地区值 ，为了索引速度，所有的地区值都有自己的数值。
1-中国
1-北京
1-朝阳区
2-海淀区
3-...
2-上海
3-...
5-广东
1-广州
2-...
2-韩国
3-日本
4-...
用户编辑信息的时候从国家，省份，市级选择3级地区值。
问题：中国的地区信息会有变更。这个时候对现 有的数据进行更新很麻烦。
比如某个省的某3个市合并为一个新城市。或者删掉某个市。（增加比较简单）
有没有一个比较成熟的地区值管理方法？
回复讨论(解决方案)
你示例的数据是有限分类的
根据此类的特点，你可以这样组织数据
01 中国
0101 北京
010101 朝阳区
010102 海淀区
010103 ...
0102 上海
0103 ...
0105 广东
010501 广州
010502 ...
02 韩国
03 日本
规范一点的就是 国别代码 + 区划代码（这些都有相应国的国家标准）
嗯这个我同意
但我的难题是对已有数据的更新。
比如上次发现山东省的几个市合并为一个市，什么滨海新区？忘了
但我们的很多数据都有地区值，比如会员信息，企业信息，产品信息，订单信息，位置信息等等。。
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