psql dump and restore code example
Example 1: postgresql restore from dump
psql -U postgres -h localhost -p 5432 -f data_dump.sql
Example 2: postgresql dump and restore db
#To dump a database called mydb into a SQL-script file:
pg_dump mydb > db.sql
#To reload such a script into a (freshly created) database named newdb:
psql -d newdb -f db.sql