我找到了解决方案.问题不在于Oracle 数据库的版本，而在于版本.Oracle 服务器的版本是 11.2.0.2.0，客户端的版本是 11.2.0.3.0，这个微小的差异导致了问题.

I found out the solution. Problem wasn't in edition of Oracle database, but in the version. Version of Oracle server was 11.2.0.2.0 and version of client was 11.2.0.3.0 and this little difference was causing the problem.

所以以后遇到类似问题时，请务必检查客户端和服务器的版本.

So for the future, alway check the versions of client and server, when encountering similar problem.