Solved

calculated field

Posted on 1998-12-26
7
241 Views
Last Modified: 2010-04-04
How can I get the sum of a calculated field ?

Andrew
0
Comment
Question by:andrewyu
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
7 Comments
 
LVL 10

Expert Comment

by:viktornet
ID: 1353091
What calculated field?? you mean in a database??please give further explanatin...

-Viktor
0
 
LVL 1

Expert Comment

by:venks
ID: 1353092
As far as i know there is no function in delphi to get the sum automatically.
Yoy can use SQL with a query component or use quickreport expressions to get the sum of any numeric field
venks
0
 

Author Comment

by:andrewyu
ID: 1353093
That's ok !

Thank you very much !

Andrew
0
Industry Leaders: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

 

Author Comment

by:andrewyu
ID: 1353094
Adjusted points to 10
0
 
LVL 1

Expert Comment

by:skatan187
ID: 1353095
I have a component
TMathParser1 :


Expression Evaluator v1.0 for Delphi                                         http://www.bitsoft.com                                          info@bitsoft.com                                                 { This file is distributed as freeware and without warranties of any kind. }
{ You can use it in your own applications at your own risk.                }
{ See the License Agreement for more information.                          }


0
 
LVL 1

Accepted Solution

by:
skatan187 earned 10 total points
ID: 1353096
I am not sure if that's what you ment?
0
 

Author Comment

by:andrewyu
ID: 1353097
Let say, I do "select sum(area * population) from country" in TQuery !
But, if I have a calculated field, called AP, in TTable now and I want to get the sum of this calculated field ?
So, I hope to know how can I get this value !

Andrew
0

Featured Post

On Demand Webinar - Networking for the Cloud Era

This webinar discusses:
-Common barriers companies experience when moving to the cloud
-How SD-WAN changes the way we look at networks
-Best practices customers should employ moving forward with cloud migration
-What happens behind the scenes of SteelConnect’s one-click button

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Hello everybody This Article will show you how to validate number with TEdit control, What's the TEdit control? TEdit is a standard Windows edit control on a form, it allows to user to write, read and copy/paste single line of text. Usua…
In my programming career I have only very rarely run into situations where operator overloading would be of any use in my work.  Normally those situations involved math with either overly large numbers (hundreds of thousands of digits or accuracy re…
The Email Laundry PDF encryption service allows companies to send confidential encrypted  emails to anybody. The PDF document can also contain attachments that are embedded in the encrypted PDF. The password is randomly generated by The Email Laundr…
Are you ready to implement Active Directory best practices without reading 300+ pages? You're in luck. In this webinar hosted by Skyport Systems, you gain insight into Microsoft's latest comprehensive guide, with tips on the best and easiest way…

740 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question