Information searching method and device in relation ship data bank

An information retrieval and database technology, applied in the field of database applications, can solve the problems of long time-consuming query process and low efficiency, and achieve the effects of shortening the average service time, avoiding network transmission, and reducing work intensity
CN1858743AInactive Publication Date: 2006-11-08HUAWEI TECH CO LTD
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
HUAWEI TECH CO LTD
Publication Date
2006-11-08
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

This invention discloses an information index method in a relation-type database including the following steps: structuring a dimensionality reduction strategy tree to be set in a database system, in which, said tree includes at least a sub-node and a root node, each sub-node includes the identification information of the local node number and enquiry condition combination information and lower level sub-node number, when searching said database according to user enquiry condition but does not get the necessary data, it structures new enquiry conditions based on the strategy tree, searching the database according to a new enquiry condition till getting the necessary data or enquiring the root node of the tree to feed back information of the undesired data. This invention discloses an information index device in a relation-type database including: an enquiry condition obtaining unit, an enquiry condition output unit, a strategy tree storage unit and an operation unit.
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Description

technical field

[0001] The invention relates to database application technology, in particular to an information retrieval method and device in a relational database. Background technique

[0002] A relational database is a shared, organized collection of relational data stored on a computer. Relational data is data represented by a relational digital model, and the relational mathematical model describes data in the form of a two-dimensional table. In application systems that use relational databases to store information, there are a large number of multi-dimensional queries, which provide multiple-dimensional query conditions for users to input, and users need to retrieve the required information simply, quickly and intelligently , especially the widely used call center system, such as 114 telephone number inquiry desk, mobile 1860 customer service system, enterprise 800 call service center, etc.

[0003] Usually, the implementation flow of the query to the database is a...

Claims

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