Jumat, 15 Juli 2011

Re: [MS_AccessPros] Updating table with Age Group entry

 

OK, that make sense but I how would I do it in a query? I need to list the age groups and their appriopriate student counts.

With warm regards,

Arthur Lorenzini| SQL Server/Access Developer l alorenzin@live.com
Office: 605-338-0947| Mobile: 605-857-9137 | Fax: 605-338-0947
 
1316 E. 7th Street
Sioux Falls, SD  57103  
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From: John Viescas <john@viescas.com>
To: MS_Access_Professionals@yahoogroups.com
Sent: Friday, July 15, 2011 11:33 AM
Subject: RE: [MS_AccessPros] Updating table with Age Group entry

 
Art-

Because the age changes over time, you should NOT store age group in your table.
You should calculate it in a query:

Age: DateDiff("yyyy", [DOB], Date()) + Int(Format(Date(), "mmdd") <
Format([DOB], "mmdd"))

AgeGroupID: Switch([Age] <= 18, 1, [Age] <= 21, 2, [Age] <= 25, 3, [Age] <= 30,
4, [Age] <= 35, 5, [Age] <= 40, 6, [Age] <= 49, 7, True, 8)

John Viescas, author
Microsoft Office Access 2010 Inside Out
Microsoft Office Access 2007 Inside Out
Building Microsoft Access Applications
Microsoft Office Access 2003 Inside Out
SQL Queries for Mere Mortals
http://www.viescas.com/
(Paris, France)

-----Original Message-----
From: MS_Access_Professionals@yahoogroups.com
[mailto:MS_Access_Professionals@yahoogroups.com] On Behalf Of Art
Sent: Friday, July 15, 2011 6:12 PM
To: MS_Access_Professionals@yahoogroups.com
Subject: [MS_AccessPros] Updating table with Age Group entry

I have a table called tblStudent:

tblStudent
StudentID PK
LastName
FirstName
DOB
AgeGroupID - FK to tlkpAgeGroup

The tlkpAgeGroup table contains the following records:
AgeGroupID AgeGroupName
1 18 and Under
2 19 - 21
3 22 - 25
4 26 - 30
5 30 - 35
6 36 - 40
7 41 - 49
8 50 and over

What I am trying to do is update the AgeGroupID field in tblStudent with the
appropriate number based on the DOB. Any ideas?

Thanks,

Art Lorenzini,
Sioux Falls, SD

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