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I have a quite simple syntax question.

I want to select ALL my null values in an attribute table of a feature class, not just the values in a single field.

So the question would be: what is the valid sql statement that could get me all the null values?

Thank you!

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1 Answer

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Without knowing what your data looks like, the general syntax you need to insert into the select by attributes window is:

[FIELD_1] IS NULL OR [FIELD_2] IS NULL OR [FIELD_3] IS NULL

and so on for as many fields as you have to work with. For reference the full query would be:

SELECT * FROM [TABLE_NAME] WHERE [FIELD_1] IS NULL OR [FIELD_2] IS NULL OR [FIELD_3] IS NULL
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thank you very much! – Ligia Sep 4 '12 at 10:44
1  
Likewise you can insert the NOT keyword to select ones that aren't null --- [FIELD_1] IS NOT NULL – Rayner Sep 10 '12 at 9:14

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