Still celebrating National IT Professionals Day with 3 months of free Premium Membership. Use Code ITDAY17

x
?
Solved

Delphi: Get the number of affected Rows of an Update

Posted on 2004-08-31
2
Medium Priority
?
2,836 Views
Last Modified: 2010-04-05
Hi all !
Using an Query-Object in Delphi 5, I want to get back the number of affected rows of an Update. How to do this.
I read about the "returning"-string but how to use it ?
Delphi:
query1.sql := 'update TABLE set id = 3 where port = 123';
query1.ExecSQL;
Showmessage(  [affected rows]  );
Thank you ...


0
Comment
Question by:delphistor
[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
2 Comments
 
LVL 27

Accepted Solution

by:
kretzschmar earned 375 total points
ID: 11940209
just lookup the rowsAffected-property after execSQL like

query1.ExecSQL;
Showmessage(inttostr(query1.rowsaffected));

from delphi help:

----------------------
Returns the number of rows operated upon by the latest query execution.

Delphi syntax:

property RowsAffected: Integer;

Description

Inspect RowsAffected to determine how many rows were updated or deleted by the last query operation. If no rows were updated or deleted, RowsAffected has a value of zero. RowsAffected will have a value of –1 if the execution of the SQL statement could not be executed due to an error condition. This latter situation would typically follow the raising of an exception.
---------------------

hope this helps

meikl ;-)

0
 

Author Comment

by:delphistor
ID: 11940614
Thank you meikl - it works !
A simple but effective solution !!!
delphistor....
0

Featured Post

What does it mean to be "Always On"?

Is your cloud always on? With an Always On cloud you won't have to worry about downtime for maintenance or software application code updates, ensuring that your bottom line isn't affected.

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…
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…
Visualize your data even better in Access queries. Given a date and a value, this lesson shows how to compare that value with the previous value, calculate the difference, and display a circle if the value is the same, an up triangle if it increased…
In this video, Percona Solution Engineer Rick Golba discuss how (and why) you implement high availability in a database environment. To discuss how Percona Consulting can help with your design and architecture needs for your database and infrastr…
Suggested Courses

671 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