Excerpt from: http://blog.csdn.net/davidhsing/article/details/8271845
Oracle Database Instant Client 11g 11.2.0.3.0
The Instant client is a lightweight database client released by ORACLE (R) that allows you to run OCI, OCCI, Pro*c, ODBC, and JDBC programs without having to install a standard client.
For users who only need to connect to a remote Oracle database and do not need to install the server locally.
Note:
1. You can use Sql*plus to access the database, but it is recommended to use PL/SQL Developer and so on.
2, the software is only applicable to 32-bit systems, 64-bit please download the corresponding version.
3, currently the latest version of Plsql 9.0 can only use 32-bit Oracle client (Plsql officially has not supported 64-bit).
Installation package I have posted to the new century of Chinese.
32-bit: http://www.hanzify.org/software/13506.html
64-bit: http://www.hanzify.org/software/13722.html
Oracle 11g Client