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Visual Interface Using "Join" Information on Relational Database Disclosure Number: IPCOM000036789D
Original Publication Date: 1989-Oct-01
Included in the Prior Art Database: 2005-Jan-29

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Kajitani, K Kosaka, K [+details]


Disclosed is a method for making conditional queries with a card-type user interface on a relational database system. The method provides conventional relational operations (Union, Intersection, Set difference, Cartesian product, Projection, Selection, Join) and a new operation "Navigation" that is a kind of Selection. The user can do these operations by an easy, direct manipulation on the screen, not by inputting command language. Card deck