Problem in JDBC

Question

Hiii all,
i want to make a page for username and password and i connected it with a database that contains the usernames and passwords
now i want to know how can i make a query (select password from table where username=the string that the user enter it) to match it with the password which i have in the database i write in the class:
static final String JDBC_DRIVER="sun.jdbc.odbc.JdbcOdbcDriver";
static final String DATABASE_URL="jdbc:odbc:Fees"
and in the try i write:
Class.forName(JDBC_DRIVER);               
connection= DriverManager.getConnection(DATABASE_URL);
statement= connection.createStatement();
get=Integer.parseInt(textField1.getText());          
ResultSet result=statement.executeQuery("SELECT Password FROM Fees WHERE Fees.StudentNo='"+get+"';");
but thats wrong, can anybody help me

Answer 1

  PreparedStatement name= connection.prepareStatement("SELECT StudentName FROM Fees WHERE StudentNo=ID");That SQL statment will get all the rows from the Fees table where the column named StudentNo is equal to the column named ID; if those 2 columns don't exist, then you should get a SQLException, which you should by catching and printing because it will almost certainly give you a clue that your code is bad.
What I'm guessing you want is:
  PreparedStatement name= connection.prepareStatement("SELECT StudentName FROM Fees WHERE StudentNo=?");
  name.setString(1,ID);
  ResultSet result=name.executeQuery();If the StudentNo column is a of a numeric type in the database, then the ID variable should be converted in your Java code (where you can more gracefully deal with conversion errors) to an appropriate numeric type, such as int, and you should call the appropriate set method for that numeric type, such as setInt().
By the way, notice how more readable the code is in my post, compared to yours; that's done by using the code button (or typing in the tags manually), and if you continue to post here, you should start to use it as a courtesy to the people you volunteer their time to answer your questions.