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A data storage, update and query method and device

A data storage and data technology, applied in the field of data processing, can solve problems such as unable to update historical data

Active Publication Date: 2020-12-25
HANGZHOU HIKVISION DIGITAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Among them, MOLAP (Multidimensional Online Analytical Processing) is the main method of OLAP data processing. Since MOLAP is only used to store historical data, MOLAP cannot update historical data when historical data changes.
[0004] Therefore, based on the existing data storage method, the stored historical data cannot be updated

Method used

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  • A data storage, update and query method and device
  • A data storage, update and query method and device
  • A data storage, update and query method and device

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Embodiment Construction

[0106] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. 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.

[0107]In order to solve the problems in the prior art, the embodiment of the present invention provides a data storage, update and query method and device.

[0108] A data storage method provided by an embodiment of the present invention is firstly introduced below.

[0109] Such as figure 1 As shown, a data storage method provided by an embodiment of the present invention, applied to a server, may include:

[0110] S101: Construct multiple data sub-cubes, a...

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Abstract

Embodiments of the invention provide a method and a device for data storage, a method and a device for data update, and a method and a device for data query. The method for data storage comprises: establishing a plurality of data sub-cubes, using the established plurality of data sub-cubes as the data sub-cubes of a current layer; determining whether the data sub-cubes of the current layer satisfya preset combination condition; if the data sub-cubes satisfy the preset combination condition, according to a first preset combination rule, combining the data sub-cubes of the current layer with data sub-cubes of a previous layer; determining whether the data sub-cubes of the previous layer satisfy the preset combination condition; if the data sub-cubes of the previous layer satisfy the presetcombination condition, using the data sub-cubes of the previous layer as the data sub-cubes of the current layer, and executing a step of combining the data sub-cubes of the current layer as the sub-cubes of the previous layer according to the first combination rule; if the data sub-cubes of the previous layer does not satisfy the preset combination condition, storing the established plurality oflayers of data sub-cubes. The method realizes to update stored historical data through updating the data sub-cubes corresponding to the historical data.

Description

technical field [0001] The invention relates to the technical field of data processing, in particular to a data storage, update and query method and device. Background technique [0002] In today's big data era, it is especially important to process data. There are currently many data processing methods, and OLAP (Online Analytical Processing, Online Analytical Processing) is a more commonly used data processing method for providing decision-making services. Applied to different big data platforms. [0003] Among them, MOLAP (Multidimensional Online Analytical Processing, Multidimensional Online Analytical Processing) is the main method of OLAP for data processing. Since MOLAP is only used to store historical data, MOLAP cannot update historical data when historical data changes. [0004] Therefore, based on the existing data storage method, the stored historical data cannot be updated. Contents of the invention [0005] The purpose of the embodiment of the present inven...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F16/22G06F16/23G06F16/28
Inventor 陈国栋管国辰郭峰席大超
Owner HANGZHOU HIKVISION DIGITAL TECH