Solved

Delphi Capture table changes

Posted on 2012-03-27
5
321 Views
Last Modified: 2012-05-18
I have application written in Delphi 6. The application works with Local Access table. I need to know Immediately when this table has a new record (the record is being added from different application). Right now I am working with 3 seconds timer that count the records. Is there any other way to do it without this timer ?

Thanks & regards.
0
Comment
Question by:oferlll
[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
  • 3
5 Comments
 
LVL 38

Accepted Solution

by:
Geert Gruwez earned 500 total points
ID: 37771123
no, you are using the best approach
0
 
LVL 38

Expert Comment

by:Geert Gruwez
ID: 37771139
for short, you are limited by the database you are using

>> with oracle, you can register to get events immediately upon change
DBMS_ALERT sample:
http://docs.oracle.com/cd/B19306_01/appdev.102/b14258/d_alert.htm#CHDHACEG

access does not have this capability
0
 
LVL 38

Assisted Solution

by:Geert Gruwez
Geert Gruwez earned 500 total points
ID: 37771147
but,
i would add a DATE/TIME Modified column

counting records will not show you the latest record modified

SELECT MAX(DT_MODIFIED) FROM TABLE

gives you the latest change time > store this and run again to check any changes
0

Featured Post

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!

Question has a verified solution.

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

A lot of questions regard threads in Delphi.   One of the more specific questions is how to show progress of the thread.   Updating a progressbar from inside a thread is a mistake. A solution to this would be to send a synchronized message to the…
This article explains how to create forms/units independent of other forms/units object names in a delphi project. Have you ever created a form for user input in a Delphi project and then had the need to have that same form in a other Delphi proj…
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…
In this video you will find out how to export Office 365 mailboxes using the built in eDiscovery tool. Bear in mind that although this method might be useful in some cases, using PST files as Office 365 backup is troublesome in a long run (more on t…
Suggested Courses
Course of the Month3 days, 21 hours left to enroll

630 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