Babelfish and MangoDB are two solutions that move your application workloads from SQL Server and MonoDB respectively to PostgreSQL.
We have repeatedly outlined why PostgreSQL rules the DBMS world. Some examples are PostgreSQL 14 Is Here - A Look At Its Past And Future and PostgreSQL Is DB-Engines DBMS of the Year For 2020.
While there are existing methods for moving from DBMS "A" to Postgres, as The Complete Oracle to PostgreSQL Migration Guide by EDB demonstrates, migrating application code is a whole different concept.To meet this need Babelfish and MangoDB let PostgreSQL understand queries from applications written for Microsoft SQL Server and MongoDB respectively.
full article on i-programmer: