It takes two steps to export a PostgreSQL database, first export a sql-script and then restore the data from it. The following tutorial works both on a local database and an external one, as long as they allow outside requests.
To export an sql-script of your database we'll use pg_dump. If you downloaded Postgresql from the official site then it'll be located inside the downloaded folder: /bin/pg_dump.exe. Same goes for the next command
I recommend you open the shell/cmd/Terminal from outside the folder because it may have writing-restrictions and paste the following command line:
./path_to_bin/pg_dump.exe -h db_host -U your_username -Fc db_name > dump_file.pgsql
If you encountered Access is denied, then it is probably because the file you are trying to write to got writing restrictions.
Next, we'll use pg_restore to actually export the data and not just a script. It is simpler, that's the command line:
./path_to_bin/pg_restore.exe -f destination_file.sql dump_file.pgsql
This will create a sequence of SQL queries that'll create the database you just cloned. This file will contain all of the cloned database's data.
Thanks for reading, take care!
