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1. WO2019192258 - DATA SYNCHRONIZATION METHOD, DEVICE AND APPARATUS

Publication Number WO/2019/192258
Publication Date 10.10.2019
International Application No. PCT/CN2019/073838
International Filing Date 30.01.2019
IPC
G06F 17/00 2019.01
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
FELECTRIC DIGITAL DATA PROCESSING
17Digital computing or data processing equipment or methods, specially adapted for specific functions
CPC
G06F 12/0802
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
12Accessing, addressing or allocating within memory systems or architectures
02Addressing or allocation; Relocation
08in hierarchically structured memory systems, e.g. virtual memory systems
0802Addressing of a memory level in which the access to the desired data or data block requires associative addressing means, e.g. caches
G06F 16/178
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
16Information retrieval; Database structures therefor; File system structures therefor
10File systems; File servers
17Details of further file system functions
178Techniques for file synchronisation in file systems
G06F 16/24552
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
16Information retrieval; Database structures therefor; File system structures therefor
20of structured data, e.g. relational data
24Querying
245Query processing
2455Query execution
24552Database cache management
G06F 17/00
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
17Digital computing or data processing equipment or methods, specially adapted for specific functions
G06F 2212/60
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
2212Indexing scheme relating to accessing, addressing or allocation within memory systems or architectures
60Details of cache memory
Applicants
  • 创新先进技术有限公司 ADVANCED NEW TECHNOLOGIES CO., LTD.
Inventors
  • 杜娟 DU, Juan
Agents
  • 北京博思佳知识产权代理有限公司 BEIJING BESTIPR INTELLECTUAL PROPERTY LAW CORPORATION
Priority Data
201810297307.004.04.2018CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) DATA SYNCHRONIZATION METHOD, DEVICE AND APPARATUS
(FR) PROCÉDÉ, DISPOSITIF ET APPAREIL DE SYNCHRONISATION DE DONNÉES
(ZH) 一种数据同步的方法、装置及设备
Abstract
(EN)
A data synchronization method, device and apparatus. The method comprises: an application determining data for querying (S300); retrieving a version identifier corresponding to said data from a cache (S302); and when determining that the version identifier corresponding to said data is inconsistent with a set version identifier, performing a query in a database to retrieve said data, and replacing the data stored in the cache with the data retrieved from the database (S304).
(FR)
Procédé, dispositif et appareil de synchronisation de données. Le procédé comprend les étapes suivantes : une application détermine des données à interroger (S300), récupère un identificateur de version correspondant auxdites données dans une mémoire cache (S302), effectue, lorsqu'il est déterminé que l'identificateur de version correspondant auxdites données ne coïncide pas avec un identificateur de version défini, une interrogation dans une base de données pour récupérer lesdites données, et remplace les données placées dans la mémoire cache par les données récupérées dans la base de données (S304).
(ZH)
一种数据同步的方法、装置及设备,该方法中应用确定待查询数据(S300),并从缓存中获取该待查询数据对应的版本标识(S302),当确定该待查询数据对应的版本标识与设定版本标识不一致时,则从数据库中查询该待查询数据,并将从该数据库中获取到的待查询数据替换存储在该缓存中的该待查询数据(S304)。
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