The following is the ORA-01258 error message, you can learn the cause and solution of the Oralce error.
ORA-01258 unable to delete temporary file string
Cause: A DROP TABLESPACE INCLUDING CONTENTS AND DATAFILES or ALTER DATABASE TEMPFILE DROP INCLUDING DATAFILES operation was not able to delete a temporary file in the database.
Solution: Subsequent errors describe the operating system error that prevented the file deletion. Fix the problem, if possible, and manually purge the file.
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