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PostgreSQL |
change to postgres user and open psql prompt
sudo -u postgres psql postgres
list databases
postgres=# \l
list roles
postgres=# \du
create role
postgres=# CREATE ROLE demorole1 WITH LOGIN ENCRYPTED PASSWORD 'password1' CREATEDB;
alter role
postgres=# ALTER ROLE demorole1 CREATEROLE CREATEDB REPLICATION SUPERUSER;
drop role
postgres=# DROP ROLE demorole1;
create database
postgres=# CREATE DATABASE demodb1 WITH OWNER demorole1 ENCODING 'UTF8';
grant privileges to new user
GRANT ALL PRIVILEGES ON DATABASE demodb1 TO demorole1;
drop database
postgres=# DROP DATABASE demodb1;
connect to database
postgres=# \c <databasename>
list tables in connected database
postgres=# \dt
list columns on table
postgres=# \d <tablename>
backup database
pg_dump <databasename> > <outfile>
import binary sql dump
pg_restore --create -h localhost -U postgres <infile>
import txt sql dump
cat <infile> | psql -U postgres