System requirements

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See the system requirements for details. In addition to these requirements, to install and run the Oracle adapter:

You must be currently running the appropriate version of Oracle on the machine upon which you are going to install this adapter. See also the release notes.
Verify that the Oracle environment variables, for example, ORACLE_HOME, are defined. For information about how to do the verification, see your Oracle documentation.
When running on UNIX, the Oracle client creates a process whenever a connection is made to Oracle. If any of these processes terminates, defunct processes remain in the process list. Although not required, because these do not cause problems nor do they consume resources, you can prevent this occurrence by adding the following line to the sqlnet.ora file in the $ORACLE_HOME/network/admin path:
```
bequeath_detach=YES
```
The effect of this line is to create these same connection processes as detached orphans, thus eliminating the possibility of them becoming defunct.
Set the shared library path environment variable for UNIX.
After installing the adapters on a UNIX system and running the environment variable setup program (setup), add the install_dir directory to your shared library path environment variable if it is not already there. The following instructions assume that your install_dir installation directory is defined in the DTX_HOME_DIR environment variable.

If you change your path or library path after you run the setup program, you must run the setup program again.

Note: These instructions assume that your UNIX environment is the Korn (ksh) shell.
- For IBM® RS/6000 AIX®:
```
LIBPATH=$DTX_HOME_DIR/libs:$ORACLE_HOME/lib:$LIBPATH
   export LIBPATH
```