Model, Component, and Package Management > Model management > Model Explorer > Working with databases > Starting a database (Model Explorer)
  
Starting a database (Model Explorer)
1. Start Model Explorer.
For more information refer to Starting Model Explorer.
2. Locate the Database that you want to start:
a. Expand the SQL icon.
b. Expand the Server that owns the database you want to start.
If the Server that owns the Database is not shown, add the Server to Model Explorer.
See Adding a server to model explorer.
c. If the Database you want to start is not shown, show the server's databases and optionally bookmark the Database you want to start.
For more information refer to Showing a server’s database
Note that when you select a stopped database, the following icon is shown: or
3. Right-click the database you want to start, and then click Start.