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A method and device for data backup

A data backup and data technology, which is applied to the redundancy in the operation for data error detection, database model, structured data retrieval, etc. Low cost and simple to achieve

Active Publication Date: 2019-04-12
ADVANCED NEW TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0005] This application provides a method for data backup to solve the problems of long time-consuming and difficult implementation of data backup in the prior art

Method used

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  • A method and device for data backup
  • A method and device for data backup
  • A method and device for data backup

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Embodiment Construction

[0082] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the application. However, the present application can be implemented in many other ways different from those described here, and those skilled in the art can make similar promotions without violating the connotation of the present application. Therefore, the present application is not limited by the specific implementation disclosed below.

[0083] The present application provides a method for data backup. In addition, the present application also provides a method for detecting data differences between the main and standby databases, a device for data backup, and a method for detecting data differences between the main and standby databases. difference means.

[0084] An embodiment of a method for data backup provided by this application is as follows:

[0085] refer to figure 1 , which shows a processing flowchart of a method for data backup provided...

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Abstract

The present application discloses a method for data backup, including: querying the backup database for verification data, wherein the verification data is the data inserted in the master database, and the data to be written into the master database In the process of backing up to the standby database through log mode, the verification data is backed up to the standby database at the same time; the time when the verification data is inserted into the main database is obtained, and this time is used as the complete time point; the mirror data is earlier than the complete Data records before the time point are deleted; wherein, the mirrored data is data that is synchronously written into the set storage space when data is written into the main library. The method for data backup is simple to implement, has low cost, and has high security of backup data.

Description

technical field [0001] The present application relates to the technical field of data backup, in particular to a method for data backup. The present application also relates to a method for detecting data differences between master and backup databases, a device for data backup, and a device for detecting data differences between master and backup databases. Background technique [0002] With the rapid development of business systems in recent years, the current database management system (Database Management System, DBMS) has also undergone a large-scale improvement with the increase of customers, business growth, and the increase in the number of transactions and transaction complexity of business systems. At the same time, it also leads to more frequent data changes in the DBMS. The ACID (Atomicity, Consistency, Isolation, and Durability) implementation of the DBMS ensures the stability and durability of the data in the DBMS. Among them, persistence means that when the h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F11/14G06F16/28G06F16/27
CPCG06F16/273G06F16/2358
Inventor 施云亮杜华兵
Owner ADVANCED NEW TECH CO LTD
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