Solved

calculated field

Posted on 1998-12-26
7
243 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
Technology Partners: 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

Independent Software Vendors: 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!

Question has a verified solution.

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

Creating an auto free TStringList The TStringList is a basic and frequently used object in Delphi. On many occasions, you may want to create a temporary list, process some items in the list and be done with the list. In such cases, you have to…
Introduction I have seen many questions in this Delphi topic area where queries in threads are needed or suggested. I know bumped into a similar need. This article will address some of the concepts when dealing with a multithreaded delphi database…
In this video we outline the Physical Segments view of NetCrunch network monitor. By following this brief how-to video, you will be able to learn how NetCrunch visualizes your network, how granular is the information collected, as well as where to f…
If you’ve ever visited a web page and noticed a cool font that you really liked the look of, but couldn’t figure out which font it was so that you could use it for your own work, then this video is for you! In this Micro Tutorial, you'll learn yo…

728 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