ojdbc6.jar- Classes for use with JDK 1.6. It contains the JDBC driver classes except classes for NLS support in Oracle Object and Collection types. ojdbc6dms.jar - Same as ojdbc6.jar, except that it contains instrumentation to support DMS and limite
orai18n.jar 驱动包， NLS classes for use with JDK 1.2, 1.3, 1.4, and 1.5. This jar file replaces the old nls_charset jar/zip files.
JDBC_orai18n最新oracle架包
orai18n.jar解决连接oracle时中文乱码问题。解决字符集不支持错误时，也需要该jar。
