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Data query method, device and equipment and auxiliary data query method, device and equipment

A data query and data table technology, applied in the computer field, can solve problems such as unsatisfactory data query methods

Active Publication Date: 2020-08-14
ALIPAY (HANGZHOU) INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The embodiment of this specification provides a method, device and equipment for data query and auxiliary data query to solve the problem of unsatisfactory data query methods in related technologies

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  • Data query method, device and equipment and auxiliary data query method, device and equipment

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Embodiment Construction

[0060] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described below in conjunction with specific embodiments of the present application and corresponding drawings. Apparently, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0061] In order to solve the problem of unsatisfactory data query methods in the related art, the embodiments of this specification provide a data query method and device, and a data query auxiliary method and device. The methods and devices provided in the embodiments of this specification may be executed by electronic equipment, such as server equip...

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Abstract

The embodiment of the invention discloses a data query method, device and equipment, and an auxiliary data query method, device and equipment, and the data query method comprises the steps: receivinga query request carrying an initial query condition; if the query field in the initial query condition is a non-index field of the target data table, performing querying from the target secondary datatable to obtain a value set of index fields of the target data table corresponding to the initial query condition, and querying the target data table to obtain target data stored in the big data computing service by taking the index fields of the target data table and the value set as new query conditions, wherein the target data table is an external table of a basic data table of the big data computing service, and a main key field is used as an index field, the target secondary data table is an external table of an extended data table of the basic data table, a primary key field and a non-primary key field of the basic data table are stored in the target secondary data table, the non-primary key field is used as an index field, and the index field of the extended data table is the sameas the query field.

Description

technical field [0001] The present application relates to the field of computer technology, and in particular to a method, device and equipment for data query and auxiliary data query. Background technique [0002] With the growth of business volume and the passage of time, some enterprises (such as Internet enterprises) or institutions have more and more data volumes, and traditional data storage and computing models can no longer meet the requirements. To this end, some capable enterprises have launched big data computing services, such as MaxCompute (formerly known as ODPS), distributed database Hadoop, etc., for the use of enterprises or institutions in need. [0003] As users of big data services, enterprises or institutions often need to query data when using big data computing services. There are currently two query methods, one is to use the software development kit (Software Development Kit, SDK) provided by the big data service to directly connect to the query, an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F16/2453G06F16/2458G06F16/248G06F16/22G06F16/27
CPCG06F16/24532G06F16/2471G06F16/248G06F16/2282G06F16/27Y02D10/00
Inventor 林天权
Owner ALIPAY (HANGZHOU) INFORMATION TECH CO LTD