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Data comparison method and device, storage medium and electronic equipment

A data comparison and data technology, applied in the field of data processing, can solve problems such as slow performance of full table scanning and affecting data comparison efficiency

Active Publication Date: 2019-10-22
NEUSOFT CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since the snapshot comparison method requires a full table scan, as the amount of data increases, the performance of the full table scan will become slower and slower, which will affect the efficiency of data comparison

Method used

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  • Data comparison method and device, storage medium and electronic equipment
  • Data comparison method and device, storage medium and electronic equipment
  • Data comparison method and device, storage medium and electronic equipment

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Embodiment Construction

[0048] Specific embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present disclosure, and are not intended to limit the present disclosure.

[0049] In the process of data synchronization, incremental data synchronization can be performed, that is, data comparison is performed on the data of the source database to determine the difference data of the source database before and after the preset time period, and then the difference data is synchronized to the target database.

[0050] In related technologies, the data comparison method of the source data is mainly a snapshot comparison method, that is, a full table scan is performed on the data tables stored in the source database, and the data currently stored in the source database is compared with the last full table The scanned data is compared t...

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Abstract

The invention relates to a data comparison method and device, a storage medium and electronic equipment, and aims to provide a new data comparison mode and improve the data comparison efficiency. Thedata comparison method comprises the steps of obtaining data of N continuous data partitions in a data table stored last time; judging whether a new data partition of which the generation time is later than that of the N continuous data partitions exists in the data table or not; if the new data partitions with the generation time later than that of the N continuous data partitions exist in the data table, determining N new continuous data partitions; and comparing the data in the same data partition in the N continuous data partitions acquired last time with the data in the same data partition in the N new continuous data partitions acquired this time so as to determine difference data.

Description

technical field [0001] The present disclosure relates to the technical field of data processing, and in particular, to a data comparison method, device, storage medium and electronic equipment. Background technique [0002] In the process of data synchronization, incremental data synchronization can be performed, that is, data comparison is performed on the data of the source database to determine the difference data of the source database before and after the preset time period, and then the difference data is synchronized to the target database. [0003] In related technologies, the data comparison method of the source data is mainly a snapshot comparison method, that is, a full table scan is performed on the data tables stored in the source database, and the data currently stored in the source database is compared with the last full table The scanned data is compared to determine the difference data in the source database. However, since the snapshot comparison method re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F16/22
CPCG06F16/2282
Inventor 李东鸽牟晓光
Owner NEUSOFT CORP
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