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Date in a Query

Posted on 2012-03-16
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Last Modified: 2012-03-16
Dear Experts,

I need to be able to create a field in a query which returns the first and last dates in a range ([DateAndTime]).  So something like "'First date' to 'Last date'"

This needs to be added into a query which then forms the dataset for a count query (the count is based on [DateAndTime]). I have tried playing around with the Expression Builder, but I’m not getting very far
The query I have is below ... Can anybody help?

SELECT FFUsers_Contact_Information.DateAndTime, FFUsers_ConsultantDefs.Description, FFUsers_ConsultantDefs.entry AS FFID
FROM FFUsers_UsersPreferences INNER JOIN (FFUsers_Contact_Information INNER JOIN FFUsers_ConsultantDefs ON FFUsers_Contact_Information.createby = FFUsers_ConsultantDefs.entry) ON FFUsers_UsersPreferences.user_log_in = FFUsers_ConsultantDefs.entry
GROUP BY FFUsers_Contact_Information.DateAndTime, FFUsers_ConsultantDefs.Description, FFUsers_ConsultantDefs.entry, FFUsers_UsersPreferences.is_current
HAVING (((FFUsers_UsersPreferences.is_current)=1)); 

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Many thanks
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Question by:correlate
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4 Comments
 
LVL 41

Expert Comment

by:als315
ID: 37728939
Add this field (DateAndTime) twice and select min and max in group functions
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LVL 77

Accepted Solution

by:
peter57r earned 2000 total points
ID: 37728950
I'm not sure I understand what you are asking for.

Are you saying you want to know the values of the oldest and newest datetimes in the field DateAndTime?  

If so then it seems that you need a separate query..

Select min(Dateandtime) as FirstDate, max(dateandtime) as LastDate
from FFUsers_Contact_Information
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LVL 77

Expert Comment

by:peter57r
ID: 37728954
als315
... the query is grouping by DateAndTime so the max and min values will just be the same as the grouping value.
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Author Closing Comment

by:correlate
ID: 37728997
Brilliant - thank you for that, does the trick perfectly
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