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Optimization algorithm for querying data in database

A technology for querying data and optimizing algorithms, applied in the database field, can solve problems such as large database access, heavy workload, and error-proneness, and achieve the effect of improving compatibility and reliability, and improving the speed and efficiency of code writing.

Inactive Publication Date: 2018-01-12
BEIJING KUWO TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] Obviously, today, when frequent interaction with the database is required and frequent reading / storage of data is required, the workload of accessing the database is very heavy. Programmers tediously write SQL statements, which not only has a heavy workload, but also easily leads to errors. Further reasonable optimization

Method used

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  • Optimization algorithm for querying data in database

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Embodiment Construction

[0054] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0055] Such as figure 1 As shown, the database query data optimization algorithm of the present invention comprises the following steps:

[0056] When you need to query data, call the preset query data interface,

[0057] The query data interface opens the database according to the preset,

[0058] If the opening fails, execute the failure operation and end,

[0059] If the opening is successful, check whether the database table is created,

[0060] When detecting whether a database table is created,

[0061] If the table exists, further check whether the table structure has changed, if it has changed, perform the failure operation, end, if it has not changed, perform the query data operation,

[0062] If the table does not exist, execute the create table operation,

[0063] When performing a create table operation,

[0064] If the creation is successf...

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Abstract

The invention relates to an optimization algorithm for querying data in a database. The optimization algorithm comprises the following steps that when the data needs to be queried, a preset data querying interface is called, the data querying interface opens the database according to preset information, if the database fails to be opened, a failure operation is executed, and the whole process is finished; if the database is opened successfully, whether or not a database table is created is detected; if the table exists, whether or not the structure of the table changes is further detected, ifyes, the failure operation is executed, the whole process is finished, and if not, an operation of querying the data is executed; if the table does not exist, an operation of creating a table is executed; in the process of executing the operation of creating the table, if the table is created successfully, an operation of closing the database is executed, if the table fails to be created, the failure operation is executed, and the whole process is finished. By means of the optimization algorithm, the operation of querying the data in the database can be standardized and routinized according tothe preset information, a standardized data querying module with high universality is formed, the compatibility and reliability of the algorithm are improved, and the speed and efficiency of coding are increased.

Description

technical field [0001] The invention relates to the technical field of databases, in particular to a database query data optimization algorithm. Background technique [0002] With the development of database technology, various demands continue to emerge, constantly urging further technological innovation and upgrading. In program development, programmers sometimes encounter the following situations: [0003] When working in the company, sometimes the daytime work is not finished, and the programmer will take the work home and continue to work overtime at night. However, the company's supporting development database for program development is usually a physical database, which is deployed on the development support server. The development support server is a server inside the company's LAN, and the normal operation of the server depends on the development support server. Database for development. Since working overtime at home cannot access the company's LAN, it cannot co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30
Inventor 邱扬
Owner BEIJING KUWO TECH