postgresql username and password code example

Example 1: set username and password for postgresql database

sudo -u postgres psql -c "ALTER USER postgres PASSWORD 'postgres';"

Example 2: how to connect postgres user password using command line

sudo -u postgres psql postgres

Example 3: create postgres user

CREATE DATABASE yourdbname;
CREATE USER youruser WITH ENCRYPTED PASSWORD 'yourpass';
GRANT ALL PRIVILEGES ON DATABASE yourdbname TO youruser;

Example 4: how to connect postgres user password using command line

\password postgres

Example 5: create user and password postgres

dropuser username