Interacting with Postgres
* Type "psql [database name]" at the user prompt to enter psql,
which is an interactive SQL client for PostgreSQL.
* Inside psql, you can type SQL queries to be executed. Terminate
those queries with "\g" or ";". For example:
test=> CREATE TABLE "employees" (
test-> "employee_id" int4 PRIMARY KEY,
test-> "first_name" varchar(20),
test-> "last_name" varchar(30),
test-> "id_number" char(9),
test-> "hired_at" date,
test-> "job_desc" varchar(30),
test-> "birth_date" date,
test-> "education" varchar(20),
test-> "supervisor" int4,
test-> "login" time) \g
* Type "\h" or "\?" to get help.