You are logged on to the database as a database user.
You are the owner of the view table or have DROPIN privilege for the schema to which the view table belongs.
More information: SQL Reference Manual, Privilege Specification for a Schema (schema_priv_spec)
The database is in the ONLINE operational state.
The system deletes the view table definition along with synonyms, view tables, and privileges that are dependent on this view table. Deleting a view table does not affect the table on which the view table is based.
SQL Reference Manual, DROP VIEW Statement (drop_view_statement)