createStatement(int resultSetType, int resultSetConcurrency)
resultSetType 就是结果集模式,取值范围是:
ResultSet.TYPE_FORWARD_ONLY: cursor may move only forward.
ResultSet.TYPE_SCROLL_INSENSITIVE: scrollable but generally not sensitive to changes to the data that underlies the ResultSet.
ResultSet.TYPE_SCROLL_SENSITIVE: scrollable and generally sensitive to changes to the data that underlies the ResultSet.