Data operation method and device

A data manipulation and data technology, applied in the computer field, can solve problems such as redundant overhead, and achieve the effect of avoiding lock conflicts and reducing redundant scanning

Pending Publication Date: 2019-07-30
ALIBABA GRP HLDG LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] An object of the present application is to provide a data manipulation method and device

Method used

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Examples

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Example Embodiment

[0077] The application will be described in further detail below in conjunction with the accompanying drawings.

[0078] In a typical configuration of the present application, the terminal, the device serving the network and the trusted party all include one or more processors (CPUs), input / output interfaces, network interfaces and memory.

[0079] Memory may include non-permanent storage in computer readable media, in the form of random access memory (RAM) and / or nonvolatile memory such as read only memory (ROM) or flash RAM. Memory is an example of computer readable media.

[0080] Computer-readable media, including both permanent and non-permanent, removable and non-removable media, can be implemented by any method or technology for storage of information. Information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random acce...

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Abstract

The invention aims to provide a data operation method and device, and the method comprises the steps of obtaining a data updating request, and initiating a corresponding session according to the dataupdating request; determining a corresponding data scanning starting point position in the to-be-scanned data for the session, wherein different sessions correspond to different data scanning startingpoint positions in the to-be-scanned data; enabling different sessions to start scanning from different data scanning starting point positions in the to-be-scanned data; and scanning the data meetingthe data updating request from the to-be-scanned data, so that the lock conflicts caused by the fact that different sessions start to scan from the same scanning starting point position are avoided,and the redundant scanning of the data in the to-be-scanned data is further reduced, the data meeting the data updating request is updated, and the purpose of updating the data meeting the data updating request through the session is achieved.

Description

technical field [0001] The present application relates to the field of computers, in particular to a data operation method and device. Background technique [0002] In practical application scenarios, such as figure 1 as shown, figure 1 The vertical long boxes arranged from left to right in the database are used to indicate data block 1, data block 2 and, ...., data block N in the database, and the gray horizontal entries in each data block are arranged as required It is used to indicate the data record 1, data record 2,..., data record N correspondingly saved in the data block; A small number of data records are used for data update operations. In the database, a small number of data records that meet the SQL request need to be scanned, and the data records corresponding to the session in the SQL request are selected, and the data records are locked and the data update operation is performed. like figure 1 As shown in , in order to scan out a small amount of data record...

Claims

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Application Information

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IPC IPC(8): G06F16/23
CPCG06F16/2343G06F16/2379
Inventor 周正中
Owner ALIBABA GRP HLDG LTD
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