Question

which extensions a base database gets by default

Answer 1

The file extension is the part after the period in the filename. Many DBAs typically use the dbf file extension for Oracle datafiles to signify that this datafile is a database file or dbf. But you can use anything you want. The Oracle database does not dictate the file extension.

Answer 2

The file extension is the part after the period in the filename. Many DBAs typically use the dbf file extension for Oracle datafiles to signify that this datafile is a database file or dbf. But you can use anything you want. The Oracle database does not dictate the file extension.

I hope this will help you