I'm sure calculated<span></span> fields are in the software tools list though. <div><br></div><div><br><br>On Wednesday, March 26, 2014, John Schwartz <<a href="mailto:schwartz@melbpc.org.au">schwartz@melbpc.org.au</a>> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="auto"><div>I am in total agreement.<br><br>Sent from my iPad<div><br></div><div>John S. Schwartz</div></div><div>
<br>On 26 Mar 2014, at 4:44 pm, "Groves, Brett G" <<a href="javascript:_e(%7B%7D,'cvml','groves.brett.g@edumail.vic.gov.au');" target="_blank">groves.brett.g@edumail.vic.gov.au</a>> wrote:<br>
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<p class="MsoNormal"><span style="color:#1f497d">Hi all – my 2 centimes<u></u><u></u></span></p>
<p class="MsoNormal"><span style="color:#1f497d"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="color:#1f497d">Can’t really see the value of calculated fields in Access, maybe it is because I come at it from an SQL perspective but it represents fairly dodgy database practice methinks.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="color:#1f497d"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="color:#1f497d">Can’t really see how you can have true 3N with a calculated field stored in a table? Or have I got my head around it wrong?<u></u><u></u></span></p>
<p class="MsoNormal"><span style="color:#1f497d"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="color:#1f497d">I don’t think I’ll be including it at present; students should be using forms (and attendant query) in datasheet view for such operations IMHO<u></u><u></u></span></p>
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<p class="MsoNormal"><span style>Kind Regards,
<u></u><u></u></span></p>
<p class="MsoNormal"><span style><u></u> <u></u></span></p>
<p class="MsoNormal"><span style>Brett Groves<u></u><u></u></span></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> <a href="javascript:_e(%7B%7D,'cvml','itapps-bounces@edulists.com.au');" target="_blank">itapps-bounces@edulists.com.au</a>
[<a href="javascript:_e(%7B%7D,'cvml','itapps-bounces@edulists.com.au');" target="_blank">mailto:itapps-bounces@edulists.com.au</a>] <b>On Behalf Of </b>Robert Timmer-Arends<br>
<b>Sent:</b> Thursday, 13 February 2014 5:32 PM<br>
<b>To:</b> Year 12 IT Applications Teachers' Mailing List<br>
<b>Subject:</b> Re: [Year 12 IT Apps] MS Access - Calculated fields<u></u><u></u></span></p>
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<p class="MsoNormal"><u></u> <u></u></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">Hello Damien</span><span style="font-size:12.0pt;font-family:"Times New Roman","serif""><u></u><u></u></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman","serif""> <u></u><u></u></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">you may find this discussion useful</span><span style="font-size:12.0pt;font-family:"Times New Roman","serif""><u></u><u></u></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman","serif""> <u></u><u></u></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif""><a href="http://allenbrowne.com/casu-14.html" target="_blank">http://allenbrowne.com/casu-14.html</a></span><span style="font-size:12.0pt;font-family:"Times New Roman","serif""><u></u><u></u></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">The update at the end covers Access 2010</span><span style="font-size:12.0pt;font-family:"Times New Roman","serif""><u></u><u></u></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">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?</span><span style="font-size:12.0pt;font-family:"Times New Roman","serif""><u></u><u></u></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">Regards</span><span style="font-size:12.0pt;font-family:"Times New Roman","serif""><u></u><u></u></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">Robert T-A</span><span style="font-size:12.0pt;font-family:"Times New Roman","serif""><u></u><u></u></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">Brighton SC</span><span style="font-size:12.0pt;font-family:"Times New Roman","serif""><u></u><u></u></span></p>
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<p><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">----- Original Message -----
<u></u><u></u></span></p>
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<p style="background:#e4e4e4"><b><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">
<a title="Damien.ATKINSON-BUCK@ivanhoe.com.au">
ATKINSON-BUCK, Damien</a> <u></u><u></u></span></p>
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<p><b><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">To:</span></b><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">
<a title="itapps@edulists.com.au">Year 12 IT Applications Teachers' Mailing List</a>
<u></u><u></u></span></p>
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<p><b><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">Sent:</span></b><span style="font-size:10.0pt;font-family:"Arial","sans-serif""> Thursday, February 13, 2014 1:38 PM<u></u><u></u></span></p>
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<p><b><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">Subject:</span></b><span style="font-size:10.0pt;font-family:"Arial","sans-serif""> [Year 12 IT Apps] MS Access - Calculated
fields<u></u><u></u></span></p>
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<p><span style="font-size:12.0pt;font-family:"Times New Roman","serif""><u></u> <u></u></span></p>
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<p><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">Hi folks,<u></u><u></u></span></p>
<p><span style="font-size:10.0pt;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.
<u></u><u></u></span></p>
<p><span style="font-size:10.0pt;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?<u></u><u></u></span></p>
<p><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">Cheers<u></u><u></u></span></p>
<p><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">Damien<u></u><u></u></span></p>
<p><b><span style="font-size:9.0pt;font-family:"Times New Roman","serif";color:#880231"><br>
</span></b><b><span style="font-size:12.0pt;font-family:"Arial","sans-serif";color:#82002c">Damien</span></b><b><span style="font-size:9.0pt;font-family:"Times New Roman","serif";color:#880231">
</span></b><b><span style="font-size:12.0pt;font-family:"Arial","sans-serif";color:#880231">Atkinson-Buck</span></b><span style="font-size:12.0pt;font-family:"Times New Roman","serif""><br>
</span><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">Head of Learning Area: Technology/Arts</span><span style="font-size:8.0pt;font-family:"Times New Roman","serif"">
<u></u><u></u></span></p>
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