Summary
BigQuery legacy SQL supports user-defined functions (UDFs) written in JavaScript, which take a single row as input and produce zero or more rows as output.
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Users can now save their custom functions so they can be re-used across the project.
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SQL UDFs can be used to customize the core platform's functionality, such as making working with table references simpler and using the CONCAT function to convert a query into a function.
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Summary
This article aims to demystify the basics of BigQuery's User-Defined Functions (UDFs) and how to use them to customize the core platform's functionality. It explains how to use SQL UDFs to make working with table references simpler, and how to use the CONCAT function to convert a query into a function. Finally, it provides an example of how to use the CONCAT function to convert a query into a function and how to use the CONCAT function to convert a query into a function.
Getting Started with BigQuery SQL User Defined Functions (SQL UDFs) | by Jim Barlow | Towards Data Science
towardsdatascience.com
An overview of 12 user-friendly BigQuery SQL functions, including BigQuery truncate ... For those of you not familiar with BigQuery UDFs , these are a scalar ...
User friendly BigQuery SQL functions
ancoris.com
