I've been searching the documentation and I've tried ALTER ROLE,
REVOKE, etc etc etc & can't seem to find anything that shows me how to
remove membership roles from a particular user / role. I've granted a
user name 'david' a member of 'finance' role but how do I remove the
role membership from 'david'?
Sorry for sounding completely dumb but I just can't seem to find this
in the documentation.
