My Windows hard drive died and I transferred the secondary hard drive (on which my PostgreSQL 9.4 database was installed) to my new PC.
Since all programs needed to be reinstalled, I then downloaded and installed PostgreSQL 12 into the folder adjacent to my earlier 9.4 install.
When I run pgAdmin 4, I can only see the default PostgreSQL 12 database. How can I connect to, use and hopefully migrate my old 9.4 database?