> Sorry, let me clearify.. unless UserId is an integer, quote it !!

And quoting integers is not a problem, I even prefer it.  IMHO we should
tell people to quote all values so if someone "forgets" to do any sort of
input validation (i.e. make sure it's actually an integer) there won't be
a major problem otherwise problems (including SQL injection) may arise.

Regards,
Philip

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