If the dbf file is deleted directly, the oracle service will be abnormal and the database will not be used normally.

If the dbf file becomes too large, the database file should grow automatically.

You can add a dbf file under your own tablespace, and then turn off the self-growth option of users0 1.dbf, so that users0 1.dbf will not continue to grow, and new data will be written into the newly created dbf file.