Updating a check box in Access

Question

Is it possible? It must be. I have a table in MS Access that has three columns that are check boxes for contacted once, contacted twice, and contacted 3x's.
I already know that if a check box is selected it is equal to "1" and if not selected it is equal to "0"
I want to run a program thru to say if 1stcontact equals "0" it has to updated by insert a check, else if 2ndcontact equals "0" it updates, and so on.
This is what I've come up with. Does anyone know what's wrong?
               String contact1Xs = ""; String contact2Xs = "";
               String contact3Xs = "";
               try
               Class.forName("sun.jdbc.odbc.JdbcOdbcDriver").newInstance();
               String url2 = "jdbc:odbc:d1b";
          java.sql.Connection c2 = DriverManager.getConnection(url2,"admin", "rjdemo");
          java.sql.Statement st2 = c2.createStatement();
               java.sql.ResultSet rs2 = st2.executeQuery("select * from testcontacted");
     java.sql.ResultSetMetaData md2 = rs2.getMetaData();
               while(rs2.next())
               { contact1Xs = rs2.getString(10); contact2Xs = rs2.getString(12); contact3Xs = rs2.getString(14);
               if (contact1Xs.equals("0"))
                         st2.executeUpdate("UPDATE testcontacted SET 1stcontact = 1");
                    else if (contact2Xs.equals("0"))
                         st2.executeUpdate("UPDATE testcontacted SET 2ndcontact = 1");
                    else if (contact3Xs.equals("0"))
                         st2.executeUpdate("UPDATE testcontacted SET 3rdcontact = 1");
                    else
                         System.out.println("Row " + rs2.getRow() + " has been contacted 3 Xs");
          } //closes while rs.next()
                    rs2.close();
               }     //closes try block
               catch(Exception e)
               e.printStackTrace();

Answer 1

If you already have a primary key, then use this code
import java.sql.*;
import java.util.*;
class AccessCheck {
     public static void main(String h[]) {
          String contact1Xs = "";
          String contact2Xs = "";
          String contact3Xs = "";
          int primeColumn="";
          try {
               Class.forName("sun.jdbc.odbc.JdbcOdbcDriver").newInstance();
               String url2 = "jdbc:odbc:testdb";
               java.sql.Connection c2 = DriverManager.getConnection(url2,"", "");
               java.sql.Statement st2 = c2.createStatement();
               java.sql.ResultSet rs2 = st2.executeQuery("select * from testcontacted");
               java.sql.ResultSetMetaData md2 = rs2.getMetaData();
               Vector batch = new Vector();
               int rowNum=0;
               while(rs2.next()) {
                    primeColumn= Integer.parseInt(rs2.getString("primary_column"));
                    contact1Xs = rs2.getString(1);
                    contact2Xs = rs2.getString(2);
                    contact3Xs = rs2.getString(3);
                    if (contact1Xs.equals("0")) {
                         batch.add("update table testcontacted set 1stcontact=1 where prime_column="+primeColumn);
                    } else if (contact2Xs.equals("0")) {
                         batch.add("update table testcontacted set 2ndcontact=1 where prime_column="+primeColumn);
                    } else if (contact3Xs.equals("0")) {
                         batch.add("update table testcontacted set 3rdcontact=1 where prime_column="+primeColumn);
                    } else {
                         rowNum++;
                         System.out.println("Row " + rs2.getRow() + " has been contacted 3 Xs");
               } //closes while rs.next()
               for(int batchCount=0;batchCount<batch.size();batchCount++)
                    st2.executeUpdate((String)batch.elementAt(batchCount));
               st2.close();
               c2.close();
               System.out.println("Completed.....");
          } catch(Exception e) {
               e.printStackTrace();
}Please change the insert query in the previous response to insert all other values (columns).
Hope this helps too.
Sudha