Answers for "postgresql database dump and restore"

postgresql restore from dump

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

how to take database dump in postgresql

pg_dump dbname > outfile

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