Tomcat 5 JDBC question

Does Tomcat 5.0 only support TYPE_FORWARD_ONLY Result Sets? Ive declared my result set as
private ResultSet rs;
stmt = con.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE, ResultSet.CONCUR_UPDATABLE);
However when I try and scroll through it using
stmt = con.createStatement();
rs = stmt.executeQuery("SELECT * FROM customer");
boolean is_true = rs.last(); //this will set the pointer in the last record of your ResultSet.
no_of_records = rs.getRow(); //return the current record number, ie last record number.
ResultSetMetaData rsmd = rs.getMetaData();
column_count = rsmd.getColumnCount();
customerArray = new String[no_of_records][column_count];
buf.append("<p align=center>#Records: "+no_of_records+"</p>");
buf.append("<p align=center>#Columns: "+column_count+"</p>");
I keep getting the error :
java.sql.SQLException: Result set type is TYPE_FORWARD_ONLY at sun.jdbc.odbc.JdbcOdbcResultSet.last(JdbcOdbcResultSet.java:2274) at EditCustomer.doPost(EditCustomer.java:55)
Where line 55 of Edit Customer is the first statement to scroll through the ResultSet
boolean is_true = rs.last(); //this will set the pointer in the last record of your ResultSet.
Do I have to scroll through the ResultSet and simply count using variables or can TYPE_SCROLL_SENSITIVE ResultSet. be used in Tomcat 5.0 as a servlet or could it be that I am simply declaring the resultset incorrectly??
Thanks for your help in advance!

Yeah....mySQL would not be a bad thing to learn at this point. Considering developing a private BB and MySQL would be ideal for that.
Anyhow back to my problem, which my the way is no longer a problem. Thanks for your help...Ill probably be back later with more questions. Just by the way if anyone wants to know how to do it here is some of the code.
PrintWriter output = response.getWriter();
response.setContentType( "text/html" );
StringBuffer buf = new StringBuffer();
buf.append("<HTML><HEAD><TITLE>\n");
try
     stmt = con.createStatement();
     rs = stmt.executeQuery("SELECT * FROM customer");
     int rows=0;
     int cols=3;
     while(rs.next())
          rows++;
     customerArray = new String[rows][cols];
     rs.close();
     rs = stmt.executeQuery("SELECT * FROM customer");
     rs.next();
     for(int i=0; i<customerArray.length; i++)
          for (int j=0; j<customerArray.length; j++)
               if(j==0)
                    customerArray[i][j] = rs.getString("Name");
               if(j==1)
                    customerArray[i][j] = rs.getString("Level");
               if(j==2)
                    customerArray[i][j] = rs.getString("Note");
               else{}
               rs.next();
          rs.close();
          buf.append("</TITLE></HEAD>\n");
          buf.append("<body bgcolor=#D7DBE7 text=#0000FF>");
          buf.append("<div align=center>");
          buf.append("<p>�</p>");
          buf.append("<form action=http://Colt/Admin/servlet/servDeleteCustomer method=post name=Delete id=Delete>");
          buf.append("<div align=center>");
          buf.append("<table width=255 border=0>");
     buf.append("<tr>");
     buf.append("<td width=109>Delete Customer: </td>");
     buf.append("<td width=76><select name=delete id=deleteName>");
     for(int i=0; i<customerArray.length; i++)
               for (int j=0; j<customerArray[i].length; j++)
                    if(j==0)
                         buf.append("<option value="+customerArray[i][j]+">"+customerArray[i][j]+"</option>");
               else{}
     buf.append("</select></td>");
     buf.append("<td width=56><input type=submit name=Submit value=Submit /></td>");
     buf.append("</tr>");
          buf.append("</table>");
          buf.appen("</div></form><p>�</p><p>�</p></div></BODY></HTML>");
          output.println(buf.toString());
          output.close();
catch(.....)

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Message was edited by:
ayrtonsf1

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These JAR files will need to be made available to Eclipse. The easiest way, as before, is to install them directly into
apache-tomcat-5.5.17/common/lib
good luck,
-zak guler

JDBC Questions have some doubts

hi,
Friends i have some doubts on JDBC Adapter . plz give me answere.
1) Wt is the use of update query in jdbc adapter?
2) Why did u use the flag field in jdbc table?
3) How will u send the data into multiple table?
4) Wt is the receiver str jdbc?
5 Wt is the jdbc configurations
thanks in adnvace.

Hi,
1) Wt is the use of update query in jdbc adapter?
--> Update query is used to update the specific record in the database table based on Key fields.
2) Why did u use the flag field in jdbc table?
--> the Flag field is used to mark the records which are selected by sender JDBC adapter, so next time those records should not be repeated.
3) How will u send the data into multiple table?
--> You can send the data to multiple tables with the help of multi-mapping in the XI.
Accessing Multiple Tables dynamically using JDBC
Accessing Multiple Tables dynamically using JDBC
4) Wt is the receiver str jdbc?
--> On receiver side JDBC, you can either Insert, Update or delete the records. The storder proceduers are the line of codes written in DB2, From XI you can directly execute these JDBC statements. It will be helpful when you will be working on synchronous scenario and need to modify or deal with multiple tables based on complex logics
5 Wt is the jdbc configurations
--> JDBC configuration is based on the JDBC drivers installed.
Refer - Detail explanation
http://help.sap.com/saphelp_nw04s/helpdata/en/22/b4d13b633f7748b4d34f3191529946/frameset.htm
Thanks
Swarup

Tomcat startup.bat question

When execute Tomcat5/bin/startup.bat,it will appear a command window,all display information of Tomcat will appear in it.Is there a method which can put the display information in this command window into a TXT file? Because if tomcat or JVM raise fatal error,before I see the error display information of Tomcat in this command window,the command window has closed!!! Or is there a method which can keep the tomcat command window opening all time whether it raise so fatal error?
Any idea will be appreciated!

Open a command prompt: Start:run cmd
This opens a dos prompt box for you.
When you run tomcat this way, it won't close the box.
Alternatively check the Tomcat5/logs directory for any error messages there.

Tomcat startup configuration question

Can anyone tell me how I can...
...add the following parameter to Tomcat startup:
-Djava.awt.headless=trueWhich file is the advice referring to (and where can I find it)?
And in which part of the file should I make the insertion?
Thanks,
James

Add JAVA_OPTS="-Djava.awt.headless=true" in $TOMCAT_HOME/bin/startup.sh

Super Easy Tomcat 4.0 question

I have a bunch of JSPs at d:\rhhshn\ (Tomcat is on the same drive). How can I get them to compile and run? It was like two lines of code in Tomcat 3.2 but 4.0 is literally several dozen and cut-and-paste didn't work.
My classpath is already set for the classes that the JSPs will need and Tomcat is properly serving its own JSP examples.

frustrated sigh Well does anybody know how to do it in Tomcat 3.2?

Tomcat 5 JDBC question

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