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A compression method, decompression method and device for ordering records

A technology for ordering records and decompression, applied in database model, database index, structured data retrieval, etc., can solve the problems of high parallel reading and writing of data tables and high operation delay, so as to shorten the compression operation delay, improve the The effect of the compression effect

Active Publication Date: 2020-05-15
CHINA MOBILE GROUP ZHEJIANG
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Problems solved by technology

[0004] However, the existing compression technology has the following disadvantages: when data is inserted, updated, and the index key value is updated, it must be decompressed first and then updated, resulting in high operation delay, which is not suitable for OLTP (On- LineTransaction Processing (online transaction processing system) database; compressed data does not support high parallel reading and writing of compressed data tables

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  • A compression method, decompression method and device for ordering records
  • A compression method, decompression method and device for ordering records
  • A compression method, decompression method and device for ordering records

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Embodiment Construction

[0060] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, specific embodiments will be described in detail below with reference to the accompanying drawings.

[0061] In the current order record storage scheme, each time a user orders a chapter of a book, a piece of data including mobile phone number, book serial number, and chapter serial number is inserted into the user order record table for subsequent authentication and use. And because the user will generate an order record by chapter every time he reads a paid chapter, and the order of chapters in each book is fixed, this is the use of the chapter bitmap field of the present invention to represent the chapters in the order record The sequence number provides the basis.

[0062] The compression method for order records in a specific embodiment of the present invention is to use the chapter number in the order record to be compressed, based on the chapte...

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Abstract

The invention provides a compression method, uncompressing method and apparatus for an order history. The compression method comprises steps of acquiring a chapter serial number of a to-be-compressed order history, looking for a position of an order state corresponding to the chapter serial number in an order history list based on a chapter bitmap addressing algorithm, and using a bitmap compression algorithm to modify the order state corresponding to the chapter serial number to an ordered state. By the use of the compression method for the order history, compression time delay can be shortened.

Description

technical field [0001] The invention relates to the technical field of data services, in particular to a compression method, decompression method and device for ordering records. Background technique [0002] As a new way of reading, mobile phone reading has begun to gradually replace paper books, newspapers and magazines, etc., and has increasingly entered people's study and life. However, as the number of users and the number of e-books continue to increase, the user's order records will increase exponentially, which will eventually lead to bottlenecks in the storage space and performance of the reading platform database. [0003] The existing compression technology is to compress the data table through the table compression function carried by relational database software (such as Oracle and Sql server). The principle of table compression is to save space by deleting repeated data values ​​in the data table. Moreover, when compressing, each value in the column is replace...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F16/22G06F16/28
Inventor 唐凯郑文彬田原戴和忠陈学蒋海滨李锦
Owner CHINA MOBILE GROUP ZHEJIANG
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