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Multi-indexing method and device, cloud system and computer readable storage medium

A multi-index and index technology, applied in the field of cloud computing, can solve problems such as multi-index difficulties, achieve the effect of ensuring consistency and reducing size

Inactive Publication Date: 2018-05-08
BEIJING BAIDU NETCOM SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the convenience of query, a table usually needs to establish multiple indexes, but in the cloud database, because the data is scattered on different nodes, it is difficult to implement multiple indexes

Method used

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  • Multi-indexing method and device, cloud system and computer readable storage medium
  • Multi-indexing method and device, cloud system and computer readable storage medium
  • Multi-indexing method and device, cloud system and computer readable storage medium

Examples

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Embodiment Construction

[0019] In the following, only some exemplary embodiments are briefly described. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and descriptions are to be regarded as illustrative in nature and not restrictive.

[0020] Stored in cloud databases are usually complex tables with many rows and columns. Table 1 below shows a data table with 4 rows and 3 columns.

[0021] Table 1

[0022] first keyword

second keyword

data

1

AAA

xxx

2

CCC

yyy

3

BBB

zzz

[0023] As shown in Table 1 above, the keywords corresponding to the data include the first keyword and the second keyword, and the data is usually a very long character string, represented by xxx, yyy, zzz here.

[0024] The above data table with 4 rows and 3 columns is just an example, and the present inv...

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Abstract

The invention provides a multi-indexing method and device used for a cloud database, a cloud system and a computer readable storage medium. The cloud database comprises a storage unit and an indexingunit. The multi-indexing method comprises the following steps that: storing multiple pieces of data into the storage unit, and obtaining the storage address information of each piece of data in the storage unit; and independently relatively storing each storage data information of the data in a plurality of index keywords corresponding to each data in the indexing unit so as to bring convenience for indexing the cloud database according to at least two indexing keywords in a plurality of indexing keywords.

Description

technical field [0001] The invention relates to the field of cloud computing, in particular to a multi-index method, a multi-index device, a cloud system and a computer-readable storage medium for cloud databases. Background technique [0002] In cloud computing systems, cloud databases play an important role. Similar to traditional databases, cloud databases also store several tables, and each table has rows and columns; however, unlike traditional databases, cloud databases divide tables into several slices, and each slice is placed in the cloud system. on different nodes. For the convenience of query, a table usually needs to establish multiple indexes, but in the cloud database, because the data is scattered on different nodes, it is difficult to implement multiple indexes. [0003] In view of this, it is hoped that a multi-index mechanism for cloud databases can be provided. Contents of the invention [0004] Embodiments of the present invention provide a multi-ind...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30
CPCG06F16/22G06F16/901G06F16/23G06F16/27G06F16/313
Inventor 王华勇
Owner BEIJING BAIDU NETCOM SCI & TECH CO LTD
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