t avatar of entropy, that embodiment of confusion,
that mythical end-user, upon the site of David's office:

¤~~~~~~~~~¤~~~~~~~~~¤~~~~~~~~~¤~~~~~~~~~¤~~~~~~~~~¤

JS:  Your observation is falsified by every SQL database in the world.
     The facts are in the DB, which any authorized user is allowed to
     update.  The definitions and constraints are stored separately,
     and only the DB administrator is allowed to modify them.  There
     is a major difference in the ease of modifying the two kinds