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Postgres database export and import

Here's how to export an existing database and import it into another database in postgres.

1. Login to a database machine as postgres user
2. use following to export database
pg_dump database-name > filename-dump.out
3. Now create a new database in which the data will be imported, if it does not exist.
createdb new-database-name
4. Now import the data into new database
psql -f filename-dump.out new-database-name

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