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Data sync method and data sync system

A data synchronization and data technology, applied in the database field, can solve the problems of high cost of code reconstruction time, difficult and efficient target code, and low program execution efficiency, so as to reduce the amount of data synchronization, wide application range, and improve the accuracy of system synchronization Effect

Inactive Publication Date: 2015-12-23
BEIJING QIYI CENTURY SCI & TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The technology is too complicated to optimize and compile to generate efficient object code
The efficiency of program execution is low, the time cost of code reconstruction is high, and the entire program design scheme is not cost-effective

Method used

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  • Data sync method and data sync system
  • Data sync method and data sync system
  • Data sync method and data sync system

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Embodiment Construction

[0044] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with this application. Rather, they are merely some examples of apparatuses and methods consistent with aspects of the present application as recited in the appended claims.

[0045] figure 1 Shown is a schematic diagram of a data synchronization method according to an embodiment of the present invention. The problem to be solved by the present invention is the problem of data synchronization across databases, specifically, establishing a synchronization path between the original database and the target database. This method is not only simple and effic...

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Abstract

The invention provides a data sync method and a data sync system. The data sync method and the data sync system are utilized to sync data in a primary database to a target database. The primary database comprises at least one storage datum, and each storage datum comprises a content bit. The data sync method comprises the steps that flag data are set in the primary database, when one content bit in one of the storage data is modified, a flag bit is set in a corresponding flag datum, and the content of the corresponding content bit is written in the target database according to the flag bit when the flag data are scanned and the flag bit is scanned. According to the data sync method and the sync system, the modified storage data are flagged, the method is simple, the data synchronization efficiency of a cross-database is improved, the flag bit occupies small memory, the instantaneity and the consistency of the data synchronization are achieved, the cost performance is high, and the data sync method and the data sync system have the advantages of reducing data synchronization quantity and improving the synchronization efficiency.

Description

technical field [0001] The invention relates to the field of databases, in particular to a data synchronization method and a data synchronization system. Background technique [0002] Nowadays, there are currently two problems in data synchronization between cross-databases: [0003] 1) Relying on other intermediate systems makes the synchronization system too complicated, resulting in system instability. When there is a bug in the system, the debugging project of the system is large and the time efficiency is low; [0004] 2) Rely on more complex technology to ensure the real-time and consistency of data. The technology is too complex to be optimized and compiled to generate efficient object code. The efficiency of program execution is low, the time cost of code reconstruction is high, and the entire program design scheme is not cost-effective. [0005] Therefore, there is a need in this field to propose a simple and efficient data synchronization method to ensure the r...

Claims

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Application Information

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IPC IPC(8): G06F17/30
CPCG06F16/275
Inventor 谭建南郑程李雄锋王天兴武绍龙
Owner BEIJING QIYI CENTURY SCI & TECH CO LTD