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Data storage method for improving instantaneity of embedded type database

A data storage and database technology, applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., can solve problems affecting the real-time performance of the system, large database structure, complex model structure, etc., to improve access speed and storage efficiency , Improve the effect of access speed

Active Publication Date: 2012-04-11
北京人大金仓信息技术股份有限公司
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  • Abstract
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Problems solved by technology

But this kind of model structure is more complex, especially when the scale of the embedded system increases, the structure of its database becomes very large, which will affect the real-time performance of the system

Method used

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  • Data storage method for improving instantaneity of embedded type database
  • Data storage method for improving instantaneity of embedded type database
  • Data storage method for improving instantaneity of embedded type database

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Embodiment Construction

[0015] The storage design defined in the present invention refers to the storage structure, scheme, etc. of the database metadata in the embedded real-time database. The storage design in the invention is different from the general database storage design. In order to ensure the real-time performance of the database, the access speed priority is used. For the storage structure, in terms of the access method, an access method that conforms to this structure and gives priority to speed is also designed.

[0016] The purpose of the present invention is to improve the real-time performance of the database system in embedded application scenarios through the storage design in the scheme. This real-time performance includes two aspects. One is the real-time performance in embedded scenarios. The application database in the system guarantees the real-time performance of the real-time system for applications by designing the access method for the storage structure; the second is to design...

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Abstract

The invention provides a data storage method for improving instantaneity of an embedded type database. In the data storage method, a database file storage space is divided into four parts sequentially comprising database header information, an object index, a bitmap page and other object occupation spaces, wherein the object index is an object array with an object identification as a subscript. Through an object storage technology combined with an object bitmap, storage efficiency of the database is increased. Through a manner of accessing a database object by the object bitmap, the array can be used during realizing so that access speed of metadata is increased. Especially, under an application scene with relatively smaller database volume, access speed can be greatly increased by adopting the data storage method.

Description

Technical field [0001] The invention relates to a database data storage method, in particular to a data storage method for improving the real-time performance of an embedded database, and belongs to the technical field of embedded real-time databases. Background technique [0002] With the widespread application of embedded systems and the continuous popularization of embedded real-time operating systems, the problem of data management in the embedded environment has become an important part of the system, and building an embedded real-time database system has become a problem that must be solved in embedded development. The embedded system mentioned here refers to a database system that can run independently in embedded devices to process a large number of data with strong timeliness and strict timing. It has high reliability, high real-time performance and high information Throughput is the goal, and the correctness of the data depends not only on the logical result, but also o...

Claims

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Application Information

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IPC IPC(8): G06F17/30
Inventor 杨经正陈东刘建立李恒寇立涛
Owner 北京人大金仓信息技术股份有限公司
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