Database deletion data recovery method and device

A technology for deleting data and databases, applied in the computer field, can solve problems such as undeleted data recovery, and achieve the effect of comprehensive recovery

Active Publication Date: 2022-08-05
XIAMEN MEIYA PICO INFORMATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Taking Oracle as an example, there is currently no effective |Oracle deleted data record recovery technology on the market, resulting in the inability to effectively recover deleted data

Method used

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  • Database deletion data recovery method and device
  • Database deletion data recovery method and device
  • Database deletion data recovery method and device

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Embodiment Construction

[0025] The present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the related invention, but not to limit the invention. In addition, it should be noted that, for the convenience of description, only the parts related to the related invention are shown in the drawings.

[0026] It should be noted that the embodiments in the present application and the features of the embodiments may be combined with each other in the case of no conflict. The present application will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

[0027] figure 1 An exemplary system architecture 100 to which the database deletion data recovery method according to the embodiment of the present application can be applied is shown.

[0028] like figure 1 As shown, the system archite...

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Abstract

The embodiments of the present application disclose a method and device for restoring deleted data of a database. A specific implementation of the method includes: determining a data segment set from a preset database file; for each data segment in the data segment set, determining a data area set from the data segment; for each data segment in the data area set area, determine the data block set from the data area; determine the valid data block from the data block set; determine the row type flag corresponding to each row of data in the valid data block, and mark the row type as the row data corresponding to the delete flag recover. This embodiment effectively utilizes the structure of the data stored in the database, accurately locates the storage location of the deleted data and restores it, and realizes the accurate and comprehensive recovery of the deleted data in the database.

Description

technical field [0001] The embodiments of the present application relate to the field of computer technologies, and in particular, to a method and apparatus for restoring deleted data of a database. Background technique [0002] The database is a warehouse that organizes, stores and manages data according to the data structure, so that the automatic management of data can be realized by using the computer. Therefore, the database has been widely used in the management of various departments in various enterprises. [0003] For example, Oracle database is one of the most popular databases with client / server architecture, and it is also the most widely used database management system in the world. As a general database system, it has complete data management functions. ; As a relational database, it is a complete relational product; as a distributed database, it implements distributed processing functions. [0004] At present, the technology of recovering deleted records of d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F11/14G06F16/28
CPCG06F11/1471G06F16/284
Inventor 夏鹏飞雷鹏程沈长达张磊黄志炜
Owner XIAMEN MEIYA PICO INFORMATION
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