It is needed to connect to the database which is located on MSSQL server via browser.
How can it be done?
It's possible to login to MSSQL database using myLittleAdmin.
For a domain:
Plesk > Subscriptions > example.com > Databases > myLittleAdmin
For a server:
Plesk > Tools & Settings > Database Servers > Access this server via DB Webadmin