Method for implementing class memory database access and retrieval

A database and implementation technology, applied in the field of access and retrieval, can solve the problems of large external memory and memory resource space, too expensive, waste of resources, etc., achieve high database management and security performance, prevent redundancy and abnormalities, and improve efficiency effect

Active Publication Date: 2005-07-06
HISENSE
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0003] At present, the data management methods that are widely used include hierarchical, network and relational databases. Although the problems of data access and retrieval can be solved to a certain extent, there are still certain defects in the establishment and application of such commercial databases.
For example, the cost of database establishment and use is high, which is too expensive for small data management units; in addition, existing databases such as MS SQL, DBII, and Oracle are all based on hard disk or tape operations. Unable to meet the requirements of real-time response, fast access and retrieval
Now there is also a mode of data access and retrieval using in-memory databases. Although the retrieval speed is fast, it also takes up a large amount of external storage and internal memory resources, especially for embedded systems.
[0004] As mentioned above, the existing various database access and retrieval methods have obvious shortcomings and deficiencies for small data application units, and there is no corresponding solution in the disclosed technology

Method used

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  • Method for implementing class memory database access and retrieval
  • Method for implementing class memory database access and retrieval
  • Method for implementing class memory database access and retrieval

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Embodiment Construction

[0018] As shown in Figures 1 to 8, the method for realizing memory-like database access and retrieval according to the present invention establishes a storage table of corresponding data nodes for data content and type, so as to directly access target data according to the primary key. According to the storage table, the corresponding index table based on the balanced binary tree model is established. Create an index table sorting field priority storage table based on the above index table, scan and analyze the specified prior queries, sort the priority of attribute queries, and determine the ordering rules of the index.

[0019] As shown in Figure 1, the described storage table is based on the Hash table type structure, and the storage location of the data can be located once by the primary key (bold), so that fast data access can be realized by using the primary key.

[0020] According to the data content and type in the storage table, in order to effectively avoid redundanc...

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Abstract

This invention relates to memory database access and index method, which comprises the following steps: establishing relative data joints memory list according to the needs; establishing relative index list that is the data structure based on balance two-branch tree mode with dynamic distribution order; distributing the string priority memory list of the index list and scanning and analyzing several inquires given; distributing the property inquires priority orders to determine the distributing rules.

Description

technical field [0001] The invention relates to a method for accessing and retrieving, in particular to realizing fast data accessing and retrieving under the premise of low resource occupation for memory-like databases. Background technique [0002] With the rapid development of computer and network information technology, the use of computers and networks has become more and more inseparable from existing office and life. Various large amounts of information and data are run through the network or stand-alone, realizing data sharing and remote transmission. While managing the data in the database, methods and software for effectively classifying and accessing data and implementing advanced retrieval are also produced and applied accordingly. [0003] At present, the data management methods that are widely used include hierarchical, network and relational databases. Although the problems of data access and retrieval can be solved to a certain extent, there are still certai...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30
Inventor 李云峰李玉军刘宏林清武
Owner HISENSE
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