# ij properties reference

When starting up `ij`, you can specify properties on the command line or in a properties file, as described in Starting ij using properties.

- ij.connection.connectionName property
- ij.database property
- ij.dataSource property
- ij.driver property
- ij.exceptionTrace property
- ij.maximumDisplayWidth property
- ij.outfile property
- ij.password property
- ij.protocol property
- ij.protocol.protocolName property
- ij.showErrorCode property
- ij.showNoConnectionsAtStart property
- ij.showNoCountForSelect property
- ij.URLCheck property
- ij.user property
- derby.ui.codeset property
- derby.ui.locale property