Lists
[1, 2, 3, 4, 5]
Power operator (2^5)
2 ** 5
Square root (power operator trick)
9 ** 0.5
Magic words:
psql -U postgres
Some interesting flags (to see all, use -h
or --help
depending on your psql version):
-E
: will describe the underlaying queries of the \
commands (cool for learning!)-l
: psql will list all databases and then exit (useful if the user you connect with doesn't has a default database, like at AWS RDS)