c＃如何在连接字符串上设置Oracle Home？

Question

I have two Oracle Homes in my machine ( Oracle 9 and Oracle 11) . Oracle 9 Home is the default home. How can I set my connection string to use Oracle 11's Home?

Answer 1

In windows you could use the LOCAL environment variable to point to the tns_alias that connects to your requested services. On *nix platforms you can use the TWO_TASK variable to do the same.

In both cases you use whatever software the ORACLE_HOME points to and use sql*net to connect to your database. In your situation you use the client software from the Oracle 9 Home and you can connect to a database that is running Oracle 11 software. (not 100% sure about the ability to connect to v11 with a v9 client but if this is possible, this is the way to do that)

If you really want to use the v11 client software, you need to setup your environment where ORACLE_HOME points to the v11 software location and PATH points to your v11 ORACLE_HOME/bin. You could still use LOCAL or TWO_TASK to connect but if your database runs on the same host, you can also set ORACLE_SID (and unset TWO_TASK) to your default connection.