restore postgres database from sql file
snippet in sql

postgresql restore from dump

user869

psql -U postgres -h localhost -p 5432 -f data_dump.sql

restore postgres database from sql file

user6119

psql -d database_name -f backup.sql

postgresql dump and restore db

user5983

#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