postgres add user password code example

Example 1: set username and password for postgresql database

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

Example 2: create password for user in postgres

ALTER USER davide WITH PASSWORD 'hu8jmn3';

Example 3: psql create user

# https://www.postgresql.org/docs/8.0/sql-createuser.html
CREATE USER <username> WITH PASSWORD '<password>' VALID UNTIL '<date here>';

Example 4: create user and password postgres

dropuser username