Online Documentation for SQL Manager for SQL server
Connecting to databases
When the database registration is complete, you can establish connection to your database.
The simplest way to connect to a database is to double-click its alias in the Database Explorer tree. The same operation can be performed by selecting the Connect to Database item of the database alias context menu, or by using the Database | Connect to Database main menu item.
Before working with server-scoped objects and services, a host connection must be established by selecting the Connect to Host item of the Server Objects node context menu, or by using the Database | Connect to Host main menu item.