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I have a stored procedure in which I need to have a where clause that reads something like:
where XMLDataPoint <> NULL
However, XMLDataPoint is an XML column and I get an error
“The XML data type cannot be compared or sorted, except when using the
IS NULL operator.”
How should I structure my where clause?
NULLrequires usingISorIS NOTcomparisons:WHERE XMLDataPoint IS NOT NULLNULLis a state (of having an unknown or undetermined value), not a value itself, so equivalence operators don’t apply.