[development] ANSI SQL <>

[Doug Green]

Yesterday I noticed that we use the SQL != syntax instead of the ANSI 
standard <> syntax.  This seems like a cross-database compatability 
problem to me, and I've written a coder rule in the SQL review to check 
for it.  It found about 20 uses of this in core.  But I haven't 
committed it yet.  I'd like to get feedback if others think that this is 
a problem.

Thanks!

-- 
Doug Green
douggreen at douggreenconsulting.com
904-583-3342

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