# 6.3. ODPI-C Enumeration dpiCreateMode

This enumeration identifies the mode to use when creating connections to the database. Note that the OCI objects mode is always enabled.

Value | Description
--- | ---
DPI_MODE_CREATE_DEFAULT | Default value used when creating connections.
DPI_MODE_CREATE_EVENTS | Enables events mode which is required for the use of advanced queuing (AQ) and continuous query notification (CQN).
DPI_MODE_CREATE_THREADED | Enables threaded mode. Internal OCI structures not exposed to the user are protected from concurrent access by multiple threads. Error information is also managed in thread local storage.