connect to database postgres code example

Example 1: how to connect to remote postgres database from command line

psql -h <IP_Address> -p <port_no> -d <database_name> -U <DB_username> -W

-W option will prompt for password

psql -h 192.168.1.50 -p 5432 -d testdb -U testuser -W

Example 2: postgresql connect to database command line

user@user-pc:~$ sudo -i -u postgres
postgres@user-pc:~$ psql
psql (9.3.5, server 9.3.6)
Type "help" for help.

Example 3: psql connect to another database

\c DBNAME
\connect DBNAME

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Sql Example

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