Book Image

Snowflake Cookbook

By : Hamid Mahmood Qureshi, Hammad Sharif
Book Image

Snowflake Cookbook

By: Hamid Mahmood Qureshi, Hammad Sharif

Overview of this book

Snowflake is a unique cloud-based data warehousing platform built from scratch to perform data management on the cloud. This book introduces you to Snowflake's unique architecture, which places it at the forefront of cloud data warehouses. You'll explore the compute model available with Snowflake, and find out how Snowflake allows extensive scaling through the virtual warehouses. You will then learn how to configure a virtual warehouse for optimizing cost and performance. Moving on, you'll get to grips with the data ecosystem and discover how Snowflake integrates with other technologies for staging and loading data. As you progress through the chapters, you will leverage Snowflake's capabilities to process a series of SQL statements using tasks to build data pipelines and find out how you can create modern data solutions and pipelines designed to provide high performance and scalability. You will also get to grips with creating role hierarchies, adding custom roles, and setting default roles for users before covering advanced topics such as data sharing, cloning, and performance optimization. By the end of this Snowflake book, you will be well-versed in Snowflake's architecture for building modern analytical solutions and understand best practices for solving commonly faced problems using practical recipes.
Table of Contents (12 chapters)

Loading delimited bulk data into Snowflake from cloud storage

This recipe demonstrates several important concepts related to loading data stored in cloud storage, for example, Amazon S3 bucket, Azure Blob Storage, and so on, into your Snowflake instance. To load data from cloud storage, we will make use of the external stage concept in Snowflake.

Getting ready

As we will be loading a file from cloud storage to Snowflake, you should have a cloud storage bucket created with files present in the bucket. To save time, you can download a previously created sample file from https://github.com/PacktPublishing/Snowflake-Cookbook/blob/master/Chapter03/r2/cc_info.csv.

Before proceeding with this recipe, follow the steps in the Configuring Snowflake access to private S3 buckets recipe to set up access when using a private or restricted bucket.

How to do it…

In order to load a file from cloud storage, we will create an external stage pointing to the cloud storage and use...