Book Image

Learning Google BigQuery

By : Thirukkumaran Haridass, Mikhail Berlyant, Eric Brown
Book Image

Learning Google BigQuery

By: Thirukkumaran Haridass, Mikhail Berlyant, Eric Brown

Overview of this book

Google BigQuery is a popular cloud data warehouse for large-scale data analytics. This book will serve as a comprehensive guide to mastering BigQuery, and how you can utilize it to quickly and efficiently get useful insights from your Big Data. You will begin with getting a quick overview of the Google Cloud Platform and the various services it supports. Then, you will be introduced to the Google BigQuery API and how it fits within in the framework of GCP. The book covers useful techniques to migrate your existing data from your enterprise to Google BigQuery, as well as readying and optimizing it for analysis. You will perform basic as well as advanced data querying using BigQuery, and connect the results to various third party tools for reporting and visualization purposes such as R and Tableau. If you're looking to implement real-time reporting of your streaming data running in your enterprise, this book will also help you. This book also provides tips, best practices and mistakes to avoid while working with Google BigQuery and services that interact with it. By the time you're done with it, you will have set a solid foundation in working with BigQuery to solve even the trickiest of data problems.
Table of Contents (9 chapters)
Free Chapter
1
Google Cloud and Google BigQuery

Comparison Operators

The following operators are used to compare two values or two expressions. The not equal != or <> operator return true if the two values being compared are not equal else it returns false. The following query will output the value true.

SELECT (2+3) != (4 + 1.5)

The equal operator = returns true if the two values being compared are same if not it return false. The query below returns the value false.

SELECT (2+3) = (4 + 1.5)

The less than operator < returns true if the operand of left side is less than the operand on the right side of the operator. The value returned by this query is true. The less than operator can be combined with = operator so that if the value in the left side of the operator is less than or equal to the value in the right side of the operator then the query returns true.

SELECT (2+3) < (4+1.5)

The greater than operator &lt...