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1. (WO2018177252) BLOCK CHAIN-BASED DATA STORAGE AND QUERY METHOD AND DEVICE

Pub. No.:    WO/2018/177252    International Application No.:    PCT/CN2018/080505
Publication Date: Fri Oct 05 01:59:59 CEST 2018 International Filing Date: Tue Mar 27 01:59:59 CEST 2018
IPC: G06F 17/30
Applicants: ALIBABA GROUP HOLDING LIMITED
阿里巴巴集团控股有限公司
QIU, Honglin
邱鸿霖
Inventors: QIU, Honglin
邱鸿霖
Title: BLOCK CHAIN-BASED DATA STORAGE AND QUERY METHOD AND DEVICE
Abstract:
Disclosed in the present application are a block chain-based data storage and query method, the method comprising: after receiving a service request sent by a user, a block chain node may parse each data category and service data corresponding to each data category from within the service request, and store the parsed service data in a database corresponding to the block chain node according to a correspondence relation between the data categories and the service data. With the present invention, by means of parsing service data, the service data may be stored to a database corresponding to a block chain node according to a correspondence relation between a data category and the service data; hence, when querying the service data, a user may carry out a query on the basis of the described correspondence relation in the database, which may avoid the problem of querying on the basis of an index in existing block chains, thus increasing the flexibility of data query in block chains, and effectively increasing the efficiency of data queries.