In the absence of any FDBA card, the officially released ALEPH database (with name adbscons.daf) is used by default in ALPHA.
The FDBA card directs ALPHA to use a database which is not the default one. This may be useful to use the database under test and not yet officially released, or to use an old version.
If name = adbstest, the current test database under developement will be selected.
To get an old version: give explicitely its name , e.g. adbs217.
Important remark:
In order to analyze 1989/1990 data, it is mandatory to ask for a special database with name = adbs8990.