Is it possible to open a SQLite database from within Microsoft SQL Server Management Studio?

The OP is asking for a way to query between DBs and so I understand the linked server responses. However, if you're here because you simply want to open an SQLite db with MSSMS, it's a lot easier than that.

Call me lazy, but all of these answers are kind of laborious and/or require things you may not want to do, have access to do in every case, or are just the wrong thing to do if all you are looking for is something better than DB Browser For SQLite such as MSSMS.

Just use this: SQLServerCompactSQLiteToolboxforSSMS

https://marketplace.visualstudio.com/items?itemName=ErikEJ.SQLServerCompactSQLiteToolboxforSSMS#overview

Open the Compact Toolbox

Add a connection

Browse to the file

Hi Yes it is possible to open any sql server from within management studio when you have the correct odbc driver to do so. Create an ODBC connection to the *.db3 file and call it something like SQLite then try this is a query window

-- needs to be a system odbc connection not user

EXEC sp_addlinkedserver 
   @server = 'SQLite', -- the name you give the server in studio 
   @srvproduct = '',
   @provider = 'MSDASQL', 
   @datasrc = 'SQLite' -- the name of the system odbc connection you created
GO

This is how you get the data, you can create views using this sql as well if you like

SELECT * FROM OPENQUERY(SQLite, 'SELECT * FROM tbl_Postcode')

You may want to create a linked server, if you have a provider for SQLite that SQL Server will accept.

Connect to your database and then navigate through "Server Objects", "Linked Servers" and add a new linked server. You can then use SQL Server to query the SQLite database, and compare the results directly.

Here is a tutorial for MySQL, so if you can create an ODBC connection for SQLite then you will be good to go.