oracle不同版本客户端与服务器端连接的问题

昨天用9.2.0的oracle客户端 连接9.0.1的服务器导数据结果出错，导10g的也是出错，后来在网上找到这篇文章

提到不同版本的客户端与服务器的兼容性问题，很老了哈哈

Server Version　

Client Version 9.2.0 9.0.1 8.1.7 8.1.6 8.1.5 8.0.6 8.0.5 7.3.4　
9.2.0 Yes Yes Yes No No EMS No No #1　
9.0.1 Yes Yes Yes Was No EMS No Was

8.1.7 Yes Yes Yes Was Was EMS Was Was　
8.1.6 No Was Was Was Was Was Was Was　

8.1.5 No No Was Was Was Was Was Was　
8.0.6 EMS EMS EMS Was Was EMS Was Was　
8.0.5 No No Was Was Was Was Was Was　
7.3.4 Was Was Was Was Was Was Was Was