User347430248 posted
Hi
steve mracek,
it's looks like in Visual Studio 2017. this functionality is removed.
I also find other threads in which they had faced the same issue like yours.
Visual Query Designer
to work around the issue , you can try to refer steps below may help you.
1. In the Server explorer create a new connection

- You see the following window:

- Then Change the data source – it is really important that you choose Microsoft SQL Server and as Data provider – .NET Framework Data Provider for OLE DB (yes, you need OLE DB, because with the native SQL Server provider, the query
designer just won’t work).

After you define your connection to the database in that manner, all new queries, that you start, will be using the Query Designer framework (the well-known MS Access-like area :) ).
Reference:
How to enable Query Designer for SQL Server in Visual Studio
Regards
Deepak