full_join.sql

AbsDataBase5.16 最新版

/*This SQL script uses Demos.abs database. 
  Please open ...\AbsoluteDatabase\Demos\Data\Demos.abs database file.
  This example illustrates use of FULL JOIN action. 
  This query retrieves all event names and places where they happen. Venue is attached to event name if value of field "VenueNo" is equal in both tables. If there is no corresponding venue for event, then NULL is placed beside it. Likewise, if a corresponding event for a venue couldn"t be found, NULL is placed to the left of it.*/

select e1."Event_Name", v2."Venue"
  from "events" e1 
  full outer join "venues" v2
    on (e1."VenueNo" = v2."VenueNo")
 order by e1."Event_Name" asc, v2."Venue" asc