Book Image

Data Modeling with Snowflake

By : Serge Gershkovich
5 (2)
Book Image

Data Modeling with Snowflake

5 (2)
By: Serge Gershkovich

Overview of this book

The Snowflake Data Cloud is one of the fastest-growing platforms for data warehousing and application workloads. Snowflake's scalable, cloud-native architecture and expansive set of features and objects enables you to deliver data solutions quicker than ever before. Yet, we must ensure that these solutions are developed using recommended design patterns and accompanied by documentation that’s easily accessible to everyone in the organization. This book will help you get familiar with simple and practical data modeling frameworks that accelerate agile design and evolve with the project from concept to code. These universal principles have helped guide database design for decades, and this book pairs them with unique Snowflake-native objects and examples like never before – giving you a two-for-one crash course in theory as well as direct application. By the end of this Snowflake book, you’ll have learned how to leverage Snowflake’s innovative features, such as time travel, zero-copy cloning, and change-data-capture, to create cost-effective, efficient designs through time-tested modeling principles that are easily digestible when coupled with real-world examples.
Table of Contents (24 chapters)
1
Part 1: Core Concepts in Data Modeling and Snowflake Architecture
8
Part 2: Applied Modeling from Idea to Deployment
14
Part 3: Solving Real-World Problems with Transformational Modeling

Performance considerations and monitoring

Because the Snowflake services layer takes care of query tuning and optimization, writing efficient queries and following best practices should be the developer’s only concern. To do this, Snowflake provides a visual query profile to break down query execution into constituent substeps and help identify potential issues. A sample query profile can be seen in the following screenshot:

Figure 12.10 – Snowflake query profile

Figure 12.10 – Snowflake query profile

A good way to familiarize yourself with the query profile screen is by reviewing the kinds of query issues that it is designed to identify. The numbers in the query profile correspond to the topics listed in the following section.

Common query problems

Most day-to-day query issues can be identified by paying attention to the information displayed in the query profile and following the query best practices described here:

  • Queuing – When Snowflake determines that...