PLEASE HELP - unreported exception java.sql.SQLException

Question

Basically create a database where Time is a field where its automatic enters date and time so no records need to be entered. and the Amount is when the user clicks on a button that amount is stored..basically how do i insert just the amount field
heres a snippet of the code..
CarParkDB db=new CarParkDB();
db.DBConnection();
String sql="insert into Stats (Time, Amount)"+
"values ('"+null+"','"+amount+"')";
db.s.executeQuery(sql); // executing the sq
Please kindly help me..thank you

Answer 1

Dont understand or know what the SQL is. The code is
try {
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
String sourceURL =
"jdbc:odbc:Driver={Microsoft Access Driver (*.mdb)};DBQ=CarPark.mdb;";
Connection CarPark =
DriverManager.getConnection(sourceURL, "admin", "");
Statement myStatement = CarPark.createStatement();
String writeString =
"insert into Stats(Amount) values("+(payment / 100.0)+")";
myStatement.executeUpdate(writeString);
ResultSet results = myStatement.executeQuery
("SELECT Amount, Time");
while (results.next()) {
System.out.print(results.getString(1) + " ");
System.out.print(results.getString(2) + " ");
System.out.println(results.getString(3));
results.close();
Error is: java.sql.SQLException: [Microsoft][ODBC Microsoft Access Driver] Too few parameters. Expected 2.
I have two colums in the db - Time & amount. The time is updated, but the amount is not.