Need a small cheat sheet? Here is the list of common Postgresql console (psql) commands to help you query data from the PostgreSQL database server more quickly and effectively.
Connect to a local database:
psql -d database -U user -W
If you want to connect to a specified host:
psql -h host -d database -U user -W
Get help on psql commands:
?
Switch connection to a new database:
c dbname username
List available databases:
l
List available tables:
dt
Describe a table:
d table_name
List available schemas:
dn
List available functions:
df
List available views:
dv
List users and their roles:
du
Show the current version of PostgreSQL server:
SELECT version();
Execute the previous command:
g
Command history:
s
If you want to save the command history to a file:
s filename
Execute psql commands from a file (import from file):
i filename
Turn on query execution time:
timing
Edit command in your default editor:
e
Quit psql:
q
Create a database:
CREATE DATABASE __foo__;
Replace variables in “__var__” -> “myvar”
Create a user and assign it to a database
create user __dev__ with encrypted password '__my-encrypted-pass__'; grant all privileges on database foo to dev;
Another way:
Switch user to Postgres
sudo -u postgres psql
Create a user:
sudo -u postgres createuser __username__;
Create a database:
sudo -u postgres createdb __dbname__
Give user a password:
$ sudo -u postgres psql; psql=# alter user __username__ with encrypted password '__my-encrypted-pass__';
Grant all privileges on a database:
psql=# grant all privileges on database __dbname__ to __username__;
Import dump to a database:
psql -h __hostname__ -d __dbname__ -U __username__ -f {/path/to/dump.sql}
Hope it will be helpful for you 🙂
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