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Curve display and inquiry method for large data quantity

A large data volume and query method technology, applied in the field of large data volume curve display query, to achieve the effect of saving system memory, good response speed, and large reference value

Inactive Publication Date: 2011-03-02
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] Aiming at the massive time series data stored in the database, for a specified longer time interval, the traditional method cannot effectively extract data for curve display analysis of the time interval data, and proposes a large amount of data. Curve display query method

Method used

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  • Curve display and inquiry method for large data quantity
  • Curve display and inquiry method for large data quantity
  • Curve display and inquiry method for large data quantity

Examples

Experimental program
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Embodiment Construction

[0038] The purpose of the present invention is to propose a large amount of data curve display query method, by segmenting the long-term interval, constructing database query requests by segment, and adopting a multi-thread mechanism to simultaneously traverse the data result set and feature points for each segment The acquisition, background processing and front-end curve display view are carried out asynchronously, which speeds up the drawing response speed and makes the curve drawing of a large amount of data a process from thick to thin and step by step, so that curve analysts can analyze large data for a long time. Grasp the curve trend of the amount of data, quickly locate the abnormality or the time interval of the curve that the analyst is interested in, so as to draw the quadratic curve, which solves the problems of efficiency and storage space.

[0039] The present invention will be further described in detail with reference to the accompanying drawings and embodiment...

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Abstract

The invention provides a curve display and inquiry method for large data quantity, belonging to the field of computer data analysis. The method comprises the following steps: firstly, acquiring a user inquiry condition, and judging whether the total data number is more than that of drawing points; if yes, dividing time intervals into n numbered segments with equal data quantity, and calculating the number of the points to be obtained in the time intervals; drawing a curve according to the maximum value and minimum value of the time intervals and the number of the points to be obtained in the time intervals; specifically starting a thread for each time interval for processing curve inquiry and view update in the time intervals; after processing n numbered threads completely, completing curve drawing; and if a user needs to select a certain interval for checking detailed data from the drawn curve, repeating the processes. In the method, by adopting a multi-thread mechanism, part of the data can be obtained for drawing within quicker time, thus preventing all the data from being drawn and greatly saving system memory.

Description

technical field [0001] The invention belongs to the field of computer data analysis, and in particular relates to a curve display query method with a large amount of data. Background technique [0002] With the development of information technology, business data in many fields such as finance, telecommunications and large-scale system testing are stored in databases. These data have the following characteristics: [0003] Large amount of data: The amount of data is very large and can reach terabytes of data. [0004] Time dependency in the form of data storage: A large amount of data in the database is stored with time as the primary key. [0005] High time density of data: High time density of data means that there will be one or more data records every second. [0006] After all the data is stored, how to query and analyze the existing data becomes the difficulty and focus of the work. A commonly used method is to retrieve data from the database and display the data in...

Claims

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Application Information

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IPC IPC(8): G06F17/30
Inventor 李重文李先军叶钢姚文涛
Owner BEIHANG UNIV
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