You want to drop the TBSI tablespace from your database. You also want to delete corresponding data files automatically, and not have to do it manually. What should you do ?
User the DROP DATAFILE command.
Use the DROP TABLESPACE command.
Ensure that all database files are Oracle Managed Files(OMF) before using the DROP TABLESPACE command.
Ensure that the DB_FILE_CREATE_DEST initialization parameter is set before using the DROP TABLESPACE command.