?
Solved

Concatenate SQL statements

Posted on 2008-10-02
2
Medium Priority
?
350 Views
Last Modified: 2013-12-17
I am building a  sql statement through a for loop.  see below.  when it runs I want string selectquery = selectquery + "INTERSECT " + [the next query generated from the for loop]  how do I do this?


string selectquery = "";
for (int q=0, a=1, x=2; q < carList.Count && a < dealerList.Count && x < dealerList.Count; q++, a+=4, x+=4 )
                        {
                           carname = carList[q].ToString();
		         carprice = dealerList[a].ToString();
		         location = dealerList[x].ToString();
 
 string selectquery = query "SELECT car_name FROM names n, price p, dealer d where name =" + carname + "AND price =" + carprice + "AND dealer =" + location + ";

Open in new window

0
Comment
Question by:MichelleLacy
[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 143

Accepted Solution

by:
Guy Hengel [angelIII / a3] earned 2000 total points
ID: 22622844
something like this:
string selectquery = ""; 
for (int q=0, a=1, x=2; q < carList.Count && a < dealerList.Count && x < dealerList.Count; q++, a+=4, x+=4 )
{
  carname = carList[q].ToString();
  carprice = dealerList[a].ToString();
  location = dealerList[x].ToString();
 
  selectquery += ( selectquery == "" ? "" : " UNION ALL " ) + "SELECT car_name FROM names n, price p, dealer d where name = '" + carname.Replace("'", "''") + "' AND price =" + carprice + " AND dealer = '" + location.Replace("'", "''") + "' ";

Open in new window

0
 

Author Closing Comment

by:MichelleLacy
ID: 31502324
thanks for the solution.  I used it immedieately.  I apologize for not updating expert exchange sooner.
0

Featured Post

Tech or Treat!

Submit an article about your scariest tech experience—and the solution—and you’ll be automatically entered to win one of 4 fantastic tech gadgets.

Question has a verified solution.

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

Many of us here at EE write code. Many of us write exceptional code; just as many of us write exception-prone code. As we all should know, exceptions are a mechanism for handling errors which are typically out of our control. From database errors, t…
For those of you who don't follow the news, or just happen to live under rocks, Microsoft Research released a beta SDK (http://www.microsoft.com/en-us/download/details.aspx?id=27876) for the Xbox 360 Kinect. If you don't know what a Kinect is (http:…
Please read the paragraph below before following the instructions in the video — there are important caveats in the paragraph that I did not mention in the video. If your PaperPort 12 or PaperPort 14 is failing to start, or crashing, or hanging, …
This lesson discusses how to use a Mainform + Subforms in Microsoft Access to find and enter data for payments on orders. The sample data comes from a custom shop that builds and sells movable storage structures that are delivered to your property. …

650 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