Solved

Frequently queried table

Posted on 2004-04-21
9
192 Views
Last Modified: 2010-04-05
Hi all. I have several SQL tables queried frequently. Can I do anything to store them in memory, not on my hard disk? This slows me down greatly.
0
Comment
Question by:hls1
[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
9 Comments
 

Expert Comment

by:ben_afferson
ID: 10883039
Yeap, I’m interested too. I use tables to store preferences in most of my projects. RAM forever! :)
0
 

Accepted Solution

by:
eagle20001 earned 25 total points
ID: 10883053
The answer is simple – www.componentAce.com with their great product aka Absolute Database. The guys have developed something cool, I tell you. You’ll never regret that you work with it!
0
 

Expert Comment

by:mrnov1
ID: 10883067
AFAIK many DMS optimize most popular queries.
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!

 
LVL 11

Assisted Solution

by:shaneholmes
shaneholmes earned 25 total points
ID: 10883084
Borland has an example of implementing in-memory tables:

http://info.borland.com/devsupport/bde/delphifiles.html

In-Memory table example with source (Updated 02/17/98, Size 230,760 bytes)

In-Memory table example with source (Package Version) (Size 15,422 bytes)

In-Memory table example with source (Packaged EXE) (Size 22,528 bytes)
This examples takes a table, places all the information into an in-memory table, and then displays all the information in a string grid.

Hope this helps!

Shane
0
 

Expert Comment

by:eagle20001
ID: 10883085
AbsDB does it better, I’ve checked. More than +150% in performance.
0
 
LVL 11

Expert Comment

by:shaneholmes
ID: 10883182
How do I implement In-memory table?

http://www.experts-exchange.com/Programming/Programming_Languages/Delphi/Q_20068246.html?query=memory+tables&searchType=topic

Search on the Delphi Super Page (http://delphi.icm.edu.pl/ or the mirror http://sunsite.informatik.rwth-aachen.de/delphi/) for the Memory table component. I believe there's a MemoryTable component there. I just can't find it now... (But I'll keep on looking...)

There's a way to implement your own version, btw, but it requires the BDE and knowledge of the BDE API. Or you start at the lowest point: TDataset and create your own TDataset-compatible component. Both are harder than just finding this existing component... ^_^
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

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…
In this tutorial I will show you how to use the Windows Speech API in Delphi. I will only cover basic functions such as text to speech and controlling the speed of the speech. SAPI Installation First you need to install the SAPI type library, th…
If you're a developer or IT admin, you’re probably tasked with managing multiple websites, servers, applications, and levels of security on a daily basis. While this can be extremely time consuming, it can also be frustrating when systems aren't wor…
NetCrunch network monitor is a highly extensive platform for network monitoring and alert generation. In this video you'll see a live demo of NetCrunch with most notable features explained in a walk-through manner. You'll also get to know the philos…

726 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