Solved

Help Needed with TQuery SQL Error

Posted on 2007-11-16
3
190 Views
Last Modified: 2010-04-21
Hi all,

I am having a problem with an SQL Query.

This is the code:

 ADOQuery1.SQL.Add('select * from TheTable where (Make) = "' + (Edit1.Text) + '"');

Now...this wrks fine IF results are found but I get an error if there are no matches found.

How could I modify this so that IF there are no matches found I can do a Showmessage('No Matches Found') or something link this.

Hope you can help!

Thanks

ST3VO
0
Comment
Question by:ST3VO
[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 Comments
 
LVL 13

Expert Comment

by:rfwoolf
ID: 20297269
Could you perhaps do a record count on the dataset?
i.e.
if ADOQuery1.RecordCount > 0 then do
  begin
etc
0
 
LVL 6

Accepted Solution

by:
bokist earned 500 total points
ID: 20297270
Try this way:

ADOQuery1.SQL.Add('select * from TheTable where (Make) = "' + (Edit1.Text) + '"');
ADOQuery1.Open;
if ADOQuery1.EOF  then  
  begin
  Showmessage('No Matches Found') ;
  Exit;
end;
0
 

Author Closing Comment

by:ST3VO
ID: 31409525
Excellent!!! Worked Great! Thanks!
0

Featured Post

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!

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…
The uses clause is one of those things that just tends to grow and grow. Most of the time this is in the main form, as it's from this form that all others are called. If you have a big application (including many forms), the uses clause in the in…
There are cases when e.g. an IT administrator wants to have full access and view into selected mailboxes on Exchange server, directly from his own email account in Outlook or Outlook Web Access. This proves useful when for example administrator want…
In this video, viewers are given an introduction to using the Windows 10 Snipping Tool, how to quickly locate it when it's needed and also how make it always available with a single click of a mouse button, by pinning it to the Desktop Task Bar. Int…

696 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