Question

I’m programming a simple app in java se with jdk 1.7, using netbeans 7.1.2 and MySQL 5.

But i have an error in the next code:

String sql = "SELECT idpaciente, ap_paterno, ap_materno, nombres, edad, direccion, telefono, descuento, movil, email, docId FROM paciente WHERE ap_paterno LIKE ? ";
pst = con.prepareStatement(sql);

pst.setString(1, paciente.getApellidoPaterno());

ResultSet rs = pst.executeQuery(sql);

This code compiling good, but after execute,i have an error of syntax, netbeans says:

You have an error in your SQL syntax; check the manual that
corresponds to your MySQL server version for the right syntax to use
near ‘?’ at line 1

Using debugger of netbeans, the error is in executeQuery, but i can not find my error.

Answer 1

PreparedStatement.executeQuery() does not take any argument, however since the interface inherits Statement.executeQuery(String sql) you are calling that instead. Just call:

ResultSet rs = pst.executeQuery();