Release 10.1A: OpenEdge Data Management:
DataServer for ORACLE

> ## Environment Variables

> This appendix lists the ORACLE, OpenEdge, and system environment variables that affect building and running the OpenEdge DataServer for ORACLE. See OpenEdge Getting Started: Installation and Configuration for more information on environment variables.

> Table B–1 lists the environment variables and describes how to set them.

> Table B–1: Environment variables
> Variable | How to set it
> --- | ---
> `DLC` (Required) | The pathname of the directory where you installed OpenEdge.
> `DSLOGDIR` (Optional) | The pathname of the log file that OpenEdge uses to keep track of DataServer processes and error messages.
> `ORACLE_HOME` (Required) | The pathname of the directory where you installed ORACLE.
> `ORACLE_SID` (Optional) | The identifier for the ORACLE instance you are accessing.
> `ORASOPATHNAME` (Optional) | The complete file specification of the ORACLE client shared library.
> `ORASRV` (Optional) | The pathname to the executable of the ORACLE DataServer. Set it to the DataServer executable you want to run: `%DLC%\bin\_orasrv.exe` (in Windows), `$DLC/bin/_orasrv` (on UNIX) or one you created with the OEBuild files provided in the `oebuild` directory.
> `ORAVERSION` (Optional) | The version of ORACLE you are accessing (8, 9, or 10. Version 8 is the default). Set this environment variable when you are upgrading a DataServer application to ORACLE 8.
> `PROBRKR` (Optional) | The pathname to the executable of the broker.
> `PROEXE` (Optional) | The pathname of the OpenEdge client executable. After setting this variable, you can run a customized executable (by default, `_progres` on UNIX) by entering pro at the system prompt.
> `TNS_ADMIN` (Optional) | The pathname of the directory where `listener.ora` and `tnsnames.ora` configuration files are found for the server. Or for the client, where the `tsnames.ora` file is found.

> Note: If you change the value of an environment variable during a session, you might have to shut down the DataServer processes and restart them before the new value takes effect.

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