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Dateadd error when querying between two dates.

running32
running32 asked
on
Medium Priority
188 Views
Last Modified: 2012-05-07
SELECT     lngPatientid
FROM         tblHPNRT
HAVING      (MAX(dtmcreated) > DATEADD([month], - 6, dtmcreated))


I am getting an error when I try to query to see if an id show up 6 months prior to the last date added.   Please can you tell me what is wrong with my query.  Thanks
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Database Consultant
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Top Expert 2009
Commented:
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Top Expert 2009

Commented:
You could also write as:

SELECT DISTINCT lngPatientid
FROM         tblHPNRT
WHERE dtmcreated > DATEADD([month], - 6, dtmcreated)
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