Data rollback processing method and data rollback processing device

A processing method and processing device technology, applied in the database field, can solve the problems of reducing database performance, affecting the efficiency of rollback data, and reducing the concurrency efficiency of multiple transactions, so as to achieve the effect of improving work performance and ensuring concurrency characteristics

Active Publication Date: 2014-04-02
HUAWEI TECH CO LTD
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  • Abstract
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  • Claims
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Problems solved by technology

[0004] However, when using the above scheme, it is found that multiple transactions will use the same Append-OnlyStore, which reduces the concurrency efficiency of multiple transactions and affects the ability of each transaction to access the rollback data efficiency, thereby reducing the performance of the database

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  • Data rollback processing method and data rollback processing device
  • Data rollback processing method and data rollback processing device

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Embodiment Construction

[0064] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0065] figure 1 It is a flow chart of Embodiment 1 of the data rollback processing method of the present invention. Such as figure 1 As shown, the subject of execution in this embodiment is a processing device for data rollback, which can be implemented in the form of software and / or hardware. Preferably, the processing device can be integr...

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Abstract

An embodiment of the invention provides a data rollback processing method and a data rollback processing device. The method comprises the following steps of determining a first rollback section distributed to a first event from various rollback sections stored in various lists of a database system when the database system receives the first event; recording using conditions of the first rollback section according to the first event; and storing the used first rollback section in the corresponding list according to using conditions of the first rollback section. The rollback sections are used for storing rollback data generated by event access data files. By using the data rollback processing method and the data rollback processing device, the various rollback sections can be reasonably managed, namely, when rollback data of one of events are stored, another event can normally acquire rollback data, the concurrence characteristic of various events is guaranteed, and the work performance of the database system is improved.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of databases, in particular to a data rollback processing method and device. Background technique [0002] A database contains a large amount of data, and a user can access the database through a database transaction (DatabaseTransaction, referred to as a transaction hereinafter) to obtain desired results. Usually, the access of the transaction to the database will cause some data in the database to be updated, and a new version of the data will appear. However, in the existing database, multiple transactions will be executed at the same time, and the access of one transaction will update the data in the database, resulting in inconsistency in the data used by another transaction, which will affect the service of the database to users. For example, transaction 1 acquires data A in a data file in the database, then transaction 2 accesses the data file, and updates data A in the data...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30
CPCG06F16/2282G06F16/2308
Inventor 徐文韬聂愿愿谢锐
Owner HUAWEI TECH CO LTD
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