A critical PostgreSQL client contains valuable data, and PostgreSQL databases should be backed up regularly. Its process is quite simple, and it is important to have a clear understanding of the techniques and assumptions.
The idea behind this dump method is to generate a text file from DataCenter1 with SQL commands that, when fed back to the DataCenter2 server, will recreate the database in the same state as it was at the time of the dump. In this case, if the Client cannot access the primary server, they can have access to the BCP server. PostgreSQL provides the utility program pg_dump for this purpose. The basic usage of this command is: pg_dump dbname >backupoutputfile.db.