int DB->remove(DB *db, const char *file, const char *database, u_int32_t flags);
The DB->remove method removes the database specified by the file and database parameters. If no database is specified, the underlying file represented by file is removed, incidentally removing all of the databases it contained.
Applications should never remove databases with open DB handles, or in the case of removing a file, when any database in the file has an open handle. For example, some architectures do not permit the removal of files with open system handles. On these architectures, attempts to remove databases currently in use by any thread of control in the system may fail.
The DB->remove method should not be called if the remove is intended to be transactionally safe; the DB_ENV->dbremove method should be used instead.
The DB->remove method may not be called after calling the DB->open method on any DB handle. If the DB->open method has already been called on a DB handle, close the existing handle and create a new one before calling DB->remove.
The DB handle may not be accessed again after DB->remove is called, regardless of its return.
The DB->remove method returns a non-zero error value on failure and 0 on success.
On Windows, the file argument will be interpreted as a UTF-8 string, which is equivalent to ASCII for Latin characters.
If the database was opened within a database environment, the environment variable DB_HOME may be used as the path of the database environment home.
DB->remove is affected by any database directory specified using the DB_ENV->set_data_dir method, or by setting the "set_data_dir" string in the environment's DB_CONFIG file.
The DB->remove method may fail and return one of the following non-zero errors:
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