Problems updating database

Question

Hello everyone,
maybe someone has a good example on how to update *.mdb database through JTextFields multiple times, i have tried lots of things, but always there shows up java.lang errors and so on! :((( Maybe problem is in that when im selecting from database i cast .toString() to see the numerical values and so on, and if i want to return it still runs them as a string not numerical! :(
And other thing- how correctly update object through tablemodels setValueAt where i call rs.updateObject, maybe this could be the salvation of my problems, when i just give values from my JTextFields to JTable interface, and from JTable directly to TableModel???
I have been looking for good example for tableModel extending deaultTableModel an its methods, and have found none, i was searching somewhere for 4 days and got sicko of this all, really theres no chance to find something like that? Problem sits in that i dont know how correctly populate JTable with data if Im extending DefaultTableModel, couse all the time problems are with return allrows.size()
Tnx!!1

Answer 1

now i write something of int type in this jTextField and wish to make an update onceSo create a GUI with a text field and a button. When you click the button you get the value from the text field and invoke SQL that updates the database.
You can find [url  http://java.sun.com/docs/books/tutorial/]tutorials here on building a GUI and on using JDBC. So read the tutorials and give it a go. I'll give you a hint. For the database update I would use a PreparedStatement:
String sql = "INSERT INTO Page (Name, Title) VALUES (?, ?)";
PreparedStatement stmt = connection.prepareStatement(sql);
stmt.setString( 1, "Name1" );
stmt.setString( 2, "Title1" );
stmt.executeUpdate();If you need further help then you need to create a [url http://homepage1.nifty.com/algafield/sscce.html]Short, Self Contained, Compilable and Executable, Example Program (SSCCE) that demonstrates the incorrect behaviour, because I can't guess exactly what you are doing based on the information provided.
And don't forget to use the [url http://forum.java.sun.com/help.jspa?sec=formatting]Code Formatting Tags so the code retains its original formatting.