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DataDirect OpenAccess SDK Installation Guide

1. Setting the CLASSPATH

  • Last Updated: April 5, 2026
  • 1 minute read
    • OpenAccess SDK
    • Version 9.0
    • Documentation

The JDBC Client must be defined in your CLASSPATH variable. The CLASSPATH is the search string your Java Virtual Machine (JVM) uses to locate the JDBC driver on your computer. If it is not defined on your CLASSPATH, you will receive a "class not found" error when trying to load the JDBC Client. Set your system CLASSPATH to include the following entries, where oajc.jar is the driver jar file and install_dir is the path to your JDBC Client installation directory:

install_dir/driver/lib/oajc.jar

Windows Example

CLASSPATH=.;c:\oajdbc900\driver\lib\oajc.jar;

Linux/UNIX Example

CLASSPATH=.:/home/user1/oajdbc900/lib/oajc.jar

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