Select * and Insert question

Question

I have my ResultSet and Query to get the data form an Oracle database. Would I use the same rs for an executeUpdate statement? Or how would I go about doing that?
Basically I'm querying the database, getting the resultset, processing the data around, and then inputing the processed data as a new row in the same database. I have the first part down pat, but I'm a little hazy on the 2nd part, the INSERT INTO bit.
Any help would be greatly appreciated.

Answer 1

This is my code:
public class LimitCheck extends HttpServlet
     private static int UsageAmount = 0;
     private static double TotalPurchased = 0.00;
     private static String Maybe = "Blurbo!";
     private static String Third = "Snafu!";
     private static int CustID = 0;
     private static void loadOracleJDBCDriver () {
System.out.println ("Loading database driver...");
try {
     DriverManager.registerDriver ( new oracle.jdbc.driver.OracleDriver());
System.out.println ("Database driver loaded...");
catch (SQLException e) {
System.err.println (e.getMessage ());
System.exit (1); // Driver error
private static Connection getConnected () {
System.out.println ("LC getting connection...");
try {
String jdbc_url = "jdbc:oracle:thin:@localhost:1521:oracle";
Connection conn = DriverManager.getConnection (jdbc_url, "scott", "tiger");
System.out.println ("LC connection created ...");
return conn;
catch (SQLException e) {
System.err.println (e.getMessage () ) ;
System.exit (1); // Driver failure
return null;     // never happen
     private static Statement makeStatement (Connection conn) {
try {
System.out.println ("LC Making a Statement...");
Statement stmt = conn.createStatement ();
System.out.println ("LC Statement created...");
return stmt;
catch (SQLException e) {
System.err.println (e.getMessage () ) ;
System.exit (2); // Driver failure
return null;     // never happen
private static ResultSet openResultSet (Statement stmt, String query, String update) {
try {
System.out.println ("LC Creating resultSet...");
ResultSet rs = stmt.executeQuery (query);
               stmt.executeUpdate(update);
System.out.println ("LC Resultset created...");
return rs;
catch (SQLException e) {
System.err.println (e.getMessage () ) ;
System.exit (3); // ResultSet error
return null;     // never happen
     private static void processResultSet (ServletOutputStream out, ResultSet rs)
try {
System.out.println ("\n\n+++++ Processing ResultSet for LimitCheck+++++\n");
               while (rs.next() )
                    CustID = (rs.getInt(2));
                    System.out.println(rs.getInt(2));
                    UsageAmount = UsageAmount + 1;
                    System.out.println(rs.getString(5));
                    System.out.println(rs.getDouble(4));
                    TotalPurchased = TotalPurchased + rs.getDouble(4);
System.out.println ("\n\n+++++ ResultSet Processed for LimitCheck+++++\n");
          catch (SQLException e) {
System.err.println (e.getMessage () ) ;
System.exit (5); // Processing error
private static void closeThingsDown (ResultSet rs, Statement stmt, Connection conn) {
try {
System.out.println ("LC Closing Things Down...");
rs.close();
System.out.println ("LC ResultSet Closed...");
stmt.close ();
System.out.println ("LC Statement closed...");
conn.close();
System.out.println ("LC Connection closed...");
catch (SQLException e) {
System.err.println (e.getMessage () ) ;
System.exit (5); // Closure failure
Then I have my doGet, and in it I have:
ResultSet rs = openResultSet (stmt, query, update);
processResultSet (out, rs);               
closeThingsDown (rs, stmt, conn);
When I javac it, I don't get any errors, but when I try to run it, my server craps out and the page can't be displayed. The problem is in my openResultset somewhere, but I can't see where.
I have a sneaking suspicion that the update is supposed to come after I processResultSet, but it complains if I move the update to after it.