This function is called if the DB_Open() returns a DB_MAYBEINUSE error. The user should be prompted to continue, as using an already open database is a recipe for trouble. DB_Reset resets the internal lock on the file so the next DB_Open will not fail. DB_Reset should only be called for database files that have not been opened. See DB_Open for more information.
Syntax: int DB_Reset(char *filename);
DB_OPEN File cannot be opened.
DB_SIGNATURE File is not a database file.
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