【单选题】
要通过可滚动的结果集更新数据,以下正确的是( )
①
pst=con.prepareStatement(sql, ResultSet.TYPE_SCROLL_SENSITIVE,ResultSet.CONCUR_UPDATABLE)
②
pst=con.prepareStatement(sql, ResultSet.TYPE_SCROLL_SENSITIVE,ResultSet.CONCUR_READ_ONLY)
③
pst=con.prepareStatement(sql, Resu ltSet.TYPE_SCROLL_SENSITIVE)
④
pst=con.prepareStatement(sql, ResultSet.CONCUR_UPDATABLE)