how to restore a database in postgresql code example

Example 1: postgresql restore from dump

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

Example 2: restore postgres database from sql file

psql -d database_name -f backup.sql

Example 3: restore pg_dumpall

$ psql -U postgres -W -d example_backups -f ~/Example_Dumps/all_tables.sql
Password for user postgres:
SET
SET
SET
SET
SET
set_config
------------
(1 row)
  
SET
SET
SET
SET
SET
CREATE TABLE
ALTER TABLE
CREATE TABLE
ALTER TABLE
COPY 3
COPY 4