Use
Before you can use SQL Studio to access the data in a database instance, you must establish a connection with the database server and log on to the database. You can enter
options for connecting to the database.Prerequisites
You have started SQL Studio and entered the required options for connecting to the database.
Procedure

When you enter the user name and password, the system automatically uses upper case. If you want the system to differentiate between upper and lower case, you must put quotation marks around your user name and password. The quotation marks are also necessary if the user name or password includes special characters. Quotation marks must not be used as part of the user name or password itself.
Result
The system establishes a connection with the database. The current session is entered in the
recent sessions list.
You can also open a new database session directly from the recent sessions list.