Title:
NORMALIZED RELATION PREPARATION DEVICE
Document Type and Number:
Japanese Patent JP3198804
Kind Code:
B2
Abstract:
PURPOSE: To provide a normalized relation preparation device for eliminating the need of re-inverstigating and inputting subordinate relation among already normalized data items by a user in the normalization operation of the data items in system development and for easily grasping reference relation among relation.
CONSTITUTION: An existing normalization form part marking part 11 retrieves an integral relation storage part 10 and marks a part for which the subordinate relation among the data items is already inputted in normalization object relation inside a relation information storage part 7. Thereafter, normalized relation is prepared while interacting with the user by using a display device 1 and an input device 2 and a logical schema preparation part 5 prepares the logical schema information of a data base corresponding to the prepared normalized relation.
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Inventors:
Koichiro Ueno
Application Number:
JP11456094A
Publication Date:
August 13, 2001
Filing Date:
April 30, 1994
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
G06F17/30; (IPC1-7): G06F17/30
Domestic Patent References:
| JP2278335A | ||||
| JP6110749A | ||||
| JP527960A | ||||
| JP3294925A | ||||
| JP4188322A | ||||
| JP63228222A | ||||
| JP5189284A | ||||
| JP6342389A | ||||
| JP63175925A |
Other References:
飯沢篤志他，「データベースのスキーマ設計」，ｂｉｔ，Ｖｏｌ．２３ Ｎｏ．１０，共立出版株式会社，１９９１（平０３−０９−０１），ｐｐ．７６−８７
Attorney, Agent or Firm:
Kaneo Miyata (1 person outside)