Apr 29, 2025 · Use the WHERE clause. Best practice: Use a WHERE clause to limit the amount of data a query returns. When possible, use BOOL, INT64, FLOAT64, or DATE columns in the WHERE clause. Operations...

Apr 29, 2025 · For best practices and techniques to improve query execution and performance, see Optimize query computation. What's next. Learn how to troubleshoot query execution issues using the...

Apr 17, 2025 · Best practice: Use SQL UDFs for simple calculations because the query optimizer can apply optimizations to SQL UDF definitions. Use Javascript UDFs for complex calculations that are not...

Mar 1, 2025 · BigQuery and Airflow play a crucial role in handling large-scale data processing in Google Cloud Platform (GCP). This blog explores essential SQL optimization techniques, BigQuery best...

May 3, 2022 · With big data, querying is no longer just about writing the "correct" syntax, it needs to be cost-effective and fast, too. Here is how… Make your query run fast like Ferrari, but cheap like Honda. Data pipelines are analogous to plumbing – we need to fix the leaks before it breaks. Image by Elf-Moondance from Pixabay.

Jan 4, 2025 · In this blog, we’ll explore advanced concepts, practical tips, and best practices for elevating your BigQuery expertise. We shall also review some useful queries which can help you with data...

Jun 1, 2023 · BigQuery uses remote memory shuffle to gain unprecedented query speed over big data sets. This enables you to query large amounts of data and get your results super fast. Each query that you...

Jan 14, 2024 · Applying best practices is important mainly for two reasons — they will help you write more efficient queries and at the same time, if applied correctly, will reduce your costs. Selecting all the fields from a result set is a very common anti-pattern that should be avoided whenever possible.

Oct 15, 2024 · In today’s data-driven world, optimizing SQL queries is crucial to ensure performance, reduce costs, and make data handling more efficient. In this article, we will explore advanced techniques for optimizing SQL queries in BigQuery: Partitioned Tables, Common Table Expressions (CTEs), and Views.

Apr 29, 2025 · If you're just getting started with SQL and BigQuery, here are a few helpful resources to keep learning and practicing: 📄 SQL Basics Cheat Sheet – A quick reference for common SQL commands and syntax.; 📘 BigQuery SQL Syntax Reference – Official Google documentation for BigQuery’s SQL syntax.; If you want to go beyond the basics and learn SQL step by step – or if you're a data ...