Access :: Get Records Where Certain Fields Are Empty?

Jun 7, 2010

I am tryin to get records where certain fields are empty, but the following sql does not give me correct result.

SELECT [specimen Type], [Year], [Lab Number]
From [PET Fish] where
ltrim(rtrim([Diagnosis])) = '' or
ltrim(rtrim([Results])) = '' or
ltrim(rtrim([Sign out Date])) = ''


It should return all records, but it returns none.

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