Select Query issue while fetching the fields

I wrote one query which select the name and designation fields based on id and then in fragment class i am calling that method which belongs to the appropriate query but unfortunately i am getting Sqlite Exception.

Database Method

public Employee getEmployeeName(int id) {
    SQLiteDatabase db = this.getWritableDatabase();
    Employee employee = new Employee();
    String query ="SELECT  " + KEY_NAME +", " +KEY_DESIG +" FROM " + TABLE_EMPLOYEES+ " WHERE " + KEY_ID + "=" + id;
    Cursor cursor = db.rawQuery(query, null);
    if (cursor.moveToFirst()) {
        do {
            employee.setName(cursor.getString(1));
            employee.setDesignation(cursor.getString(2));
        } while (cursor.moveToNext());
    }
    return employee;

}

Calling from the Fragment

db.getEmployeeName(selectedManager);

Exception

01-07 06:02:34.185: E/AndroidRuntime(2386): java.lang.IllegalStateException: Couldn't read row 0, col 2 from CursorWindow.  Make sure the Cursor is initialized correctly before accessing data from it.