change access privileges postgres database to new user code example

Example 1: psql set access privileges

REVOKE ALL ON DATABASE example_database FROM example_user;
GRANT CONNECT ON DATABASE example_database TO example_user;
GRANT SELECT ON ALL TABLES IN SCHEMA public TO example_user;

Example 2: postgresql user permissions to database

sudo -u postgres psqlpostgres=# create database mydb;postgres=# create user myuser with encrypted password 'mypass';postgres=# grant all privileges on database mydb to myuser;