To open the Start Database window:
From the Control Center, expand the object tree until you find the Database folder.
Start either all databases or selected databases:
To start all databases, right click on the Database folder and select Start from the pop-up menu. The Start Database window opens.
To start one database, click on the Database folder to expand the individual databases. Right-click on one of the databases in the expanded tree and select Start from the pop-up menu. The Start Database window opens.