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<DIV><FONT face=Arial size=2>Hello Damien</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>you may find this discussion useful</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2><A
href="http://allenbrowne.com/casu-14.html">http://allenbrowne.com/casu-14.html</A></FONT></DIV>
<DIV><FONT face=Arial size=2>The update at the end covers Access
2010</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Personally, the only situation I can see that might
justify a value that is calculated once and then stored in a field (as Access
2010 seems to do), is where you need to squeeze every bit of performance out of
the dbms that you can; for example, if you had a truck load of data that had to
be pulled frequently, calculating a new value each time (either by query or on
the fly like FileMaker) could slow retrieval down. But I can't see that
happening on modern equip unless you have a lot of data, and/or maybe an
overworked remote server?</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Regards</FONT></DIV>
<DIV><FONT face=Arial size=2>Robert T-A</FONT></DIV>
<DIV><FONT face=Arial size=2>Brighton SC</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
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<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=Damien.ATKINSON-BUCK@ivanhoe.com.au
href="mailto:Damien.ATKINSON-BUCK@ivanhoe.com.au">ATKINSON-BUCK, Damien</A>
</DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=itapps@edulists.com.au
href="mailto:itapps@edulists.com.au">Year 12 IT Applications Teachers' Mailing
List</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Thursday, February 13, 2014 1:38
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> [Year 12 IT Apps] MS Access -
Calculated fields</DIV>
<DIV><BR></DIV>
<DIV class=WordSection1>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Arial','sans-serif'">Hi
folks,<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Arial','sans-serif'">
Just looking into Outcome 2 and looking at the 2010 version of MS Access. I
hadn’t noticed before, but you can now create a calculated field in the
table definitions. This means that not only does it do the calculation (duh)
but stores that value too, so you no longer have to create a query to do that.
<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Arial','sans-serif'">Now, I always
stress to my cherubs that one of the primary reasons for making a database is
to reduce the amount of space the data is going to take up. This new ‘feature’
does the reverse. Given hard drives are so cheap and our down databases are
comparatively quite small, it doesn’t really affect SAC scenarios……… but
should we be teaching best practices or “The Way of the Access”? How do others
feel about this?<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Arial','sans-serif'">Cheers<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Arial','sans-serif'">Damien<o:p></o:p></SPAN></P>
<P class=MsoNormal
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style="FONT-SIZE: 12pt; COLOR: #82002c; FONT-FAMILY: 'Arial','sans-serif'; mso-fareast-language: EN-AU">Damien</SPAN></B><B><SPAN
style="FONT-SIZE: 9pt; COLOR: #880231; FONT-FAMILY: 'Times New Roman','serif'; mso-fareast-language: EN-AU">
</SPAN></B><B><SPAN
style="FONT-SIZE: 12pt; COLOR: #880231; FONT-FAMILY: 'Arial','sans-serif'; mso-fareast-language: EN-AU">Atkinson-Buck</SPAN></B><SPAN
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of Learning Area: Technology/Arts</SPAN><SPAN
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<o:p></o:p></SPAN></P>
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