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KQL

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May 1, 2024 Updated June 28, 2025 16 minute read
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An Introduction to Kusto Query Language (KQL)

Kusto Query Language, widely known as KQL, is a powerful tool designed to explore vast amounts of data, identify patterns, spot anomalies, and create statistical models. It is a read-only language, meaning it is used to request and return data without modifying the source. This makes it a safe and robust choice for data analysis. KQL queries are stated in plain text, using a data-flow model where data passes through a sequence of steps, making the queries easy to read, write, and automate.

Path to KQL

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We've curated six courses to help you on your path to KQL. Use these to develop your skills, build background knowledge, and put what you learn to practice.
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Reading list

We've selected four books that we think will supplement your learning. Use these to develop background knowledge, enrich your coursework, and gain a deeper understanding of the topics covered in KQL.
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Elasticsearch: The Definitive Guide
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This comprehensive guide provides a deep dive into Elasticsearch, covering its architecture, data ingestion, querying, and analytics capabilities. Its relevance to KQL stems from Elasticsearch being the underlying data store that KQL interacts with.
Elasticsearch: The Definitive Guide: A Distributed...
Paperback
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Elasticsearch: The Definitive Guide: A Distributed...
Kindle Edition
$$
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Tots Everything Recipe Cookbook
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Collection of recipes for solving common KQL problems. It valuable resource for experienced users who want to learn how to use KQL to solve specific problems.
TOTS EVERYTHING Recipe Cookbook: BEST Creative...
Paperback
$$
TOTS EVERYTHING Recipe Cookbook: BEST Creative...
Kindle Edition
$
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Hadoop in Practice
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Provides a practical guide to Elasticsearch, including a chapter on KQL. It good choice for experienced users who want to learn more about how to use Elasticsearch and KQL to solve real-world problems.
Hadoop in Practice: Includes 85 Techniques
Paperback
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Hadoop in Practice: Includes 104 Techniques
Paperback
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Hadoop in Practice by Alex Holmes (2012-10-13)
Paperback
$$$
Hadoop in Practice (Korean Edition)
Paperback
$$$
Hadoop in Practice 1st (first) by Holmes, Alex...
Paperback
$$$
Hadoop in Practice: Includes 104 Techniques
Kindle Edition
$$
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Elasticsearch in Action
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Provides a comprehensive overview of Elasticsearch, including chapters dedicated to KQL. It's a great resource for beginners who want to understand the fundamentals of KQL and its role in data analysis.
Elasticsearch in Action
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Elasticsearch in Action
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Relevant careers
Data Analyst
Security Analyst
Data Scientist
DevOps Engineer
Cloud Engineer
Related topics
Data Analytics
Cloud Computing
DevOps
Machine Learning
Artificial Intelligence
Big Data
Cybersecurity
Network Security
Information Security
Cloud Security
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