SQLite-based embedded database synchronization method

A database and embedded technology, which is applied in the design field of embedded database synchronization methods, can solve problems such as high cost and inflexible configuration, and achieve the effects of occupying less resources, ensuring reliability and stability, and saving costs

Active Publication Date: 2017-04-26
CHENGDU JIUZHOU ELECTRONIC INFORMATION SYSTEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to solve the problem that the cost of the existing embedded data synchronization tech

Method used

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  • SQLite-based embedded database synchronization method
  • SQLite-based embedded database synchronization method

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Embodiment Construction

[0037] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0038] The invention provides an embedded database synchronization method based on SQLite, including three stages of system initialization, system startup and incremental synchronization. Such as figure 1 As shown, each stage specifically includes the following steps:

[0039] (1) System initialization phase:

[0040] S1. Configure the role of the user's own device in the synchronization network.

[0041] The database used in the present invention is SQLite, which is a lightweight, cross-platform relational database, and occupies less resources, has good performance, and has no management cost. In the database synchronization system, the synchronization device is called a node. The nodes in the system are divided into master nodes and slave nodes. There can only be one master node and at least one slave node in the system; if there are multiple slave ...

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Abstract

The invention discloses a SQLite-based embedded database synchronization method. The method comprises three stages of system initialization, system startup and increment synchronization. The method is established in a database of a device; a special device for handling a synchronization business does not need to be additionally added in the whole process, so that the cost is reduced; and the characteristics of an embedded system are met. Meanwhile, the database used in the method is SQLite, occupies few resources, is good in performance and free from management cost, meets cost control demand of an embedded device, and ensures synchronization reliability and stability; and the data loss caused by network transmission is prevented through database operation logs, and synchronized database tables can be flexibly configured according to actual needs.

Description

technical field [0001] The invention belongs to the technical field of embedded databases, and in particular relates to the design of an SQLite-based embedded database synchronization method. Background technique [0002] In the field of business information systems, the information stored and managed on embedded devices is often a part of the entire integrated information system, and these data often need to be synchronized and interacted with the data of the entire information system. With the development of embedded technology And widely used, embedded data synchronization and interaction become more and more important. [0003] For the synchronization method, the current data synchronization is mainly based on incremental synchronization, that is, the data changed in one database is transferred to another database within a period of time to achieve database consistency. The changed data mainly includes added data and modified data. Deleted data. In this way, if the dat...

Claims

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Application Information

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IPC IPC(8): G06F17/30
CPCG06F16/2358G06F16/2365G06F16/27G06F16/284
Inventor 邹杰邹式论
Owner CHENGDU JIUZHOU ELECTRONIC INFORMATION SYSTEM CO LTD
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