Oracle® Database 8i | 9i | 10g | 11g | 12c | 18c | 19c Error Codes
Information for Database Error Code ORA-01120: cannot remove online database file [string]
ORA-01120: cannot remove online database file [string]
Cause: Attempting to drop a datafile when it is online
Action: Take file offline before dropping.
Error Type: ORA
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