the problem with SQL isn't that it doesn't hew to this or that mathematical framework. the problem with sql is that its irregular, doesn't compose well, and has a very baroque semantics due to the inclusion of NULLs among other things.
using a well-thought out model eases or eliminates some of these very real human problems.
using a well-thought out model eases or eliminates some of these very real human problems.
you've got it backwards