How can I store the MSS .bak database in Postgres?

Question

PostgreSQL

There is a site written in C#, its base is Microsoft Sql Server 2008, there is a backup of this database in bak format . You need to backup the database from MSS in Postgres.
As I understand it, this is not possible, due to the fact that MSS has nothing to do with SQL. Perhaps I can be wrong.

Answer 1

Yes, it's impossible. But that's not why. MSS is related to SQL, it is the same RDBMS as PostgreSQL. It's just that MSS and PostgreSQL speak different dialects of SQL and use a different backup format.
Usually, in such cases, another program is written - a data exchange mechanism that unloads data in an intermediate form from one database and loads it into another.