Due to an issue with the JTOpen JDBC driver it fails to show tables if the parent schema name contains an underscore (_).
Do as follows to workaround this problem:
- Open DBVIS-HOME\resources\dbvis-custom.prefs (DbVisualizer.app/Contents/java/app/resources/dbvis-custom.prefs on macOS) in a text editor.
Add the following row last in the file:
Do also make sure the Database Type for the DB2 iSeries connection in DbVisualizer is set to Auto Detect.