I have an API which opens an access database for read and write. The API opens the connection when it's constructed and closes the connection when it's destructed. When the db is opened an .ldb file is created and when it closes it's removed (or disappears). There are multiple applications using the API to read and write to the access db. I want to know: Is ldb file used to track multiple connections Does calling an db.close() closes all connections or just one instance. Will there be any sync issues with the above approach.