# 6.21. ODPI-C Enumeration dpiStartupMode

This enumeration identifies the mode to use when starting up a database using `dpiConn_startupDatabase()`.

Value | Description
--- | ---
DPI_MODE_STARTUP_DEFAULT | Default mode for startup which permits database access to all users.
DPI_MODE_STARTUP_FORCE | Shuts down a running instance (using ABORT) before starting a new one. This mode should only be used in unusual circumstances.
DPI_MODE_STARTUP_RESTRICT | Only allows database access to users with both the CREATE SESSION and RESTRICTED SESSION privileges (normally the DBA).