US 2026/0244609 A1 · DATA QUERY METHOD, DEVICE, SYSTEM, AND STORAGE MEDIUM

Abstract

Embodiments of the present disclosure provide a data query method, a device, a system, and a storage medium. In this embodiment of the present disclosure, a data schema of target data may be constructed via a query request; and the target data is assembled according to the constructed data schema. In this way, based on the query request and the data schema, a computing operation can be performed on the target data stored in the constructed data schema to obtain a query result, thereby implementing schema on read. This data query manner does not require data to be written according to a fixed data schema, which can improve data flexibility. In addition, schema on read can satisfy computation and analysis requirements and improve data computing capability of the database.

Claims20

Dependent claims

A data query method, comprising:

obtaining a query request, wherein data of a target data source corresponding to the query request is stored in a non-fixed schema;
constructing, based on the query request, a data schema of target data corresponding to the query request;
reading, from the target data source, the target data;
assembling, according to the data schema, the target data to obtain structured data stored according to the data schema;
and
performing, based on the data schema and the query request, a computing operation on the structured data to obtain a query result.

3 more elements

A database system, comprising:

a data source;
the data source comprising:
a target data source corresponding to a query request, wherein data of the target data source is stored in a non-fixed schema;
and
a query engine configured to perform steps comprising:
obtain a query request, wherein data of a target data source corresponding to the query request is stored in a non-fixed schema;
construct, based on the query request, a data schema of target data corresponding to the query request;
read, from the target data source, the target data;
assemble, according to the data schema, the target data to obtain structured data stored according to the data schema;
and
perform, based on the data schema and the query request, a computing operation on the structured data to obtain a query result.

8 more elements

A computing device, comprising:

a memory and a processor, wherein the memory is configured to store a computer program;
the processor is coupled to the memory and configured to execute the computer program to perform operations comprising:
obtain a query request, wherein data of a target data source corresponding to the query request is stored in a non-fixed schema;
construct, based on the query request, a data schema of target data corresponding to the query request;
read, from the target data source, the target data;
assemble, according to the data schema, the target data to obtain structured data stored according to the data schema;
and
perform, based on the data schema and the query request, a computing operation on the structured data to obtain a query result.

5 more elements

Dependencies are inferred from the claim text.

Data query method, device, system, and storage medium

Life of this patent

Data query method, device, system, and storage medium

Life of this patent

Abstract

Claims20