The Catalog Doctor can be used to diagnose connections in the following aspects:
For a JDBC-ODBC bridge, you should give the ODBC data source name, and the user ID and password (if necessary).
For a JDBC driver, uncheck Use ODBC Data Source, and check JDBC Driver. Fill in the class name of the driver, the URL, user ID and password (if necessary).
You can also change the properties values in the Properties panel directly. Select a property value, and then choose or type in the value.