[2 days left] What’s wrong with your cloud strategy? Learn why multicloud solutions matter with Nimble Storage.Register Now

x
?
Solved

No matter what I do, can not get the record count.  Help!

Posted on 2008-06-11
8
Medium Priority
?
163 Views
Last Modified: 2010-07-27
I have a query that I have tested and know works correctly.
What I want this code to do, is return the count, which will be "0" or "1"
and if it is "0", then do the re-direct.

The problem I am having, is that the query is finding the result to be "1" (for one record), but the counter says it is "0"
I have racked my head with this for half a day now, trying several ways, but still cannot get the correct results with finding the correct count and outputting the correct result.

Can someone help me with this?


<%@ page import="java.sql.*,javax.sql.*,javax.naming.*"%>
<%@ page errorPage = "errpage.jsp" %>
<%@ page import="java.util.*" %>
<%@ page import="javax.servlet.http.Cookie" %>
<% String db2username=(String)request.getRemoteUser(); %>
<%
try {
javax.sql.DataSource ds;
java.sql.Connection conns = null;
Context ic = new InitialContext();
ds = (javax.sql.DataSource) ic.lookup("java:comp/env/jdbc/mydb2");
conns = ds.getConnection();
conns.setAutoCommit(false);
  java.sql.Statement stats = conns.createStatement();
 
java.sql.ResultSet rs = stats.executeQuery("SELECT COUNT(*) COUNT FROM MYTABLE WHERE GROUPS LIKE '%ICM%' AND ID='"+db2username+"' FOR FETCH ONLY WITH UR");
 
 
Object[] COUNT = null;
int counter = 0;
while(rs.next()) {
  if(COUNT == null) {
 
String redirectURL = "cdspec.jsp?&pre_page=control5";
response.sendRedirect(redirectURL); 
 
%>
<% } else { %>
 FOUND A MATCH.  NOW DO SOMETHING HERE.
<% } %>
 
<% } // close while loop %>
<%
rs.close();
stats.close();
conns.close();
 
} catch (SQLException e) {
    }
 
%>

Open in new window

0
Comment
Question by:g118481
[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
  • 4
  • 4
8 Comments
 
LVL 92

Expert Comment

by:objects
ID: 21765725
you never set counter;

if (rs.next())
{
   counter = rs.getInt(1);

0
 
LVL 1

Author Comment

by:g118481
ID: 21765766
I do not understand your statement.
Please put it in my code snippet above so I can understand your suggestion, and so I will have a visual of exactly what to change.

Thx
0
 
LVL 92

Expert Comment

by:objects
ID: 21765776
if (rs.next())
{
   counter = rs.getInt(1);
   if (counter==1)
   {
        // found a match
   }
   else
   {
        // no match
   }
}

0
Concerto's Cloud Advisory Services

Want to avoid the missteps to gaining all the benefits of the cloud? Learn more about the different assessment options from our Cloud Advisory team.

 
LVL 1

Author Comment

by:g118481
ID: 21765816
I put your code suggestion into my code snippet below.
Is this what you mean?
<%@ page import="java.sql.*,javax.sql.*,javax.naming.*"%>
<%@ page errorPage = "errpage.jsp" %>
<%@ page import="java.util.*" %>
<%@ page import="javax.servlet.http.Cookie" %>
<% String db2username=(String)request.getRemoteUser(); %>
 
<%--/////////////////////////////////////////////////////////////////////////////////////////////--%>
<%
try {
javax.sql.DataSource ds;
java.sql.Connection conns = null;
Context ic = new InitialContext();
ds = (javax.sql.DataSource) ic.lookup("java:comp/env/jdbc/mydb2");
conns = ds.getConnection();
conns.setAutoCommit(false);
  java.sql.Statement stats = conns.createStatement();
 
java.sql.ResultSet rs = stats.executeQuery("SELECT COUNT(*) COUNT FROM MYTABLE WHERE GROUPS LIKE '%ICM%' AND ID='"+db2username+"' FOR FETCH ONLY WITH UR");
 
if (rs.next())
{
   counter = rs.getInt(1);
   if (counter==1)
   {
 
String redirectURL = "cdspec.jsp?&pre_page=control5";
response.sendRedirect(redirectURL); 
 
} else { %>
 
 FOUND A MATCH.  NOW DO SOMETHING HERE.
 
<% } %>
<% } // close while loop %>
<%
rs.close();
stats.close();
conns.close();
 
} catch (SQLException e) {
    }
 
%>

Open in new window

0
 
LVL 92

Expert Comment

by:objects
ID: 21765827
if count is 1 have you found a match?
the way u have it, u execute "FOUND A MATCH.  NOW DO SOMETHING HERE." if count is *not* equal to 1

When did u want to execute that code?

0
 
LVL 92

Accepted Solution

by:
objects earned 2000 total points
ID: 21765843
just read your code again :)

looks like it should be:

if (rs.next())
{
   int counter = rs.getInt(1);
   if (counter==0)
   {
 
String redirectURL = "cdspec.jsp?&pre_page=control5";
response.sendRedirect(redirectURL);
 
} else { %>
 
 FOUND A MATCH.  NOW DO SOMETHING HERE.
 
<% } %>
<% } // close while loop %>
<%

0
 
LVL 1

Author Comment

by:g118481
ID: 21768866
Great!

Your last suggestion works perfect.
I really appreciate your time an efforts!

Thanks
0
 
LVL 1

Author Closing Comment

by:g118481
ID: 31466421
Thank you for the excellent advice!
0

Featured Post

On Demand Webinar: Networking for the Cloud Era

Did you know SD-WANs can improve network connectivity? Check out this webinar to learn how an SD-WAN simplified, one-click tool can help you migrate and manage data in the cloud.

Question has a verified solution.

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

Introduction This article is the last of three articles that explain why and how the Experts Exchange QA Team does test automation for our web site. This article covers our test design approach and then goes through a simple test case example, how …
In this post we will learn how to connect and configure Android Device (Smartphone etc.) with Android Studio. After that we will run a simple Hello World Program.
Viewers will learn about the different types of variables in Java and how to declare them. Decide the type of variable desired: Put the keyword corresponding to the type of variable in front of the variable name: Use the equal sign to assign a v…
This tutorial will introduce the viewer to VisualVM for the Java platform application. This video explains an example program and covers the Overview, Monitor, and Heap Dump tabs.
Suggested Courses

649 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