For managing an MS SQL database, you need SQL Server Management Studio provided by Microsoft.
SQL Server Management Studio can be downloaded from the following page: https://learn.microsoft.com/en-us/sql/ssms/download-sql-server-management-studio-ssms?view=sql-server-ver16
You will find the username, password and MSSQL server in our account creation e‑mail, or via the control panel under Administration → Login details
No web‑administration of MS SQL databases is offered.
It is possible to export and import an MS SQL database (as a .bak file) through our Control Panel.
Article from the support category: Microsoft SQL Server