The type of resultset

ResultSet the TYPE attribute type_forward_only,   type_scroll_insensitive,or Type_scroll_sensitive explains:

1.type_forword_only, can only roll forward;   
2.type_scroll_insensitive, two-way scrolling, but not timely update, that is, if the data in the database has been modified, is not reflected in the resultset.   
3.type_scroll_sensitive, two-way scrolling, and timely tracking of database updates in order to change data in resultset.

The type of resultset