I am trying to find records where the value of a filed is NULL. I
know that there are records that have null values but the result is
always an empty set.
eg:
select test_id from tests where test_id=NULL
always returns an empty set when there are in fact records that have
a null value for test_id. Is there some trick to finding null valued
records in MySQL? This same sql has always worked on any other dbms
I have used.
thanks
alan
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