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A method based on hive supporting multiple characters as delimiters

A delimiter, character technology, applied in the database field, can solve the problem of inconvenience of Hive development and use

Active Publication Date: 2021-12-24
SHANDONG LANGCHAO YUNTOU INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, Hive only supports a single character as a separator, and multiple characters are used as a separator in actual applications, which causes limitations in the use of Hive and brings inconvenience to the development and use of Hive.

Method used

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  • A method based on hive supporting multiple characters as delimiters
  • A method based on hive supporting multiple characters as delimiters
  • A method based on hive supporting multiple characters as delimiters

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Embodiment Construction

[0031] In order to make the purpose, features and advantages of the present invention more obvious and understandable, the technical solutions protected by the present invention will be clearly and completely described below using specific embodiments and accompanying drawings. Obviously, the implementation described below Examples are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in this patent, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this patent.

[0032] This embodiment provides a method based on Hive supporting multiple characters as delimiters, such as figure 1 As shown, the methods include:

[0033] S1, create a user-defined separator module, and create a user-defined separator based on the user-defined separator module;

[0034] S2, obtaining a user-defined delimiter;

[0035] S3, divide the data according to the user-defined...

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Abstract

The invention provides a method based on Hive supporting multi-characters as separators, creating a user-defined separator module, creating a user-defined separator based on the user-defined separator module; obtaining user-defined separators; according to user-defined The delimiter divides the data and stores the data with user-defined delimiters, so that the data warehouse supports multiple characters as delimiters, and improves Hive to support multiple characters as delimiters.

Description

technical field [0001] The invention relates to the field of databases, in particular to a method based on Hive supporting multiple characters as separators. Background technique [0002] Apache Hive is a data warehouse built on top of Hadoop. It can map structured data files into a database table and provide complete SQL query functions. It can convert SQL statements into MapReduce tasks for execution. Since SQL is widely used in data warehouses, Hive designed a SQL-like query language specifically for its own characteristics. Developers who are familiar with SQL development can easily use Hive for development. However, Hive only supports a single character as a delimiter, and multiple characters are used as a delimiter in actual applications, which causes the limitation of using Hive and brings inconvenience to the development and use of Hive. Contents of the invention [0003] In order to overcome the deficiencies in the above-mentioned prior art, the present inventio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F16/22
Inventor 尚平平
Owner SHANDONG LANGCHAO YUNTOU INFORMATION TECH CO LTD
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