Rabu, 16 November 2016

Re: [MS_AccessPros] Will Like '*' return records if the value is null?

 

I agree with John. As zou start building your WHERE condition, you should ignore the columns/fields that aren't relevant.


However, you could use this type of syntax:


WHERE qS.MSDSID & '' Like '*'...


Regards,

Duane




From: MS_Access_Professionals@yahoogroups.com <MS_Access_Professionals@yahoogroups.com> on behalf of winberry.doyce@con-way.com [MS_Access_Professionals] <MS_Access_Professionals@yahoogroups.com>
Sent: Wednesday, November 16, 2016 11:37 AM
To: MS_Access_Professionals@yahoogroups.com
Subject: [MS_AccessPros] Will Like '*' return records if the value is null?
 


Hello Pros,

I'm building a query on the fly through VBA and if appears that if the values for a field are null, the query won't return the record using criteria Like '*' for the field. Is that a correct? Here is the SQL of the query:

SELECT qS.*
FROM qS
WHERE (((qS.MSDSID) Like '*') AND ((qS.ProductName) Like '*') AND ((qS.Category) Like '*') AND ((qS.MName) Like '*') AND ((qS.ChemTrekNo) Like '*') AND ((qS.PartNO) Like '*'));

In my table there are only 6 records and ChemTrekNo is null for all 6. Using Like '*' as criteria for ChemTrekNo no records are returned. What do I do if I want the records that contain nulls? Wrap it in Nz? What would the SQL look like?

Doyce



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Posted by: Duane Hookom <duanehookom@hotmail.com>
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