With the explosion of data computing power and cloud data warehouses SQL has become an even
more indispensable tool for the savvy analyst or data scientist. This practical book reveals
new and hidden ways to improve your SQL skills solve problems and make the most of SQL as
part of your workflow. You'll learn how to use both common and exotic SQL functions such as
joins window functions subqueries and regular expressions in new innovative ways-- as well
as how to combine SQL techniques to accomplish your goals faster with understandable code. If
you work with SQL databases this is a must-have reference. Learn the key steps for preparing
your data for analysis Perform time series analysis using SQL's date and time manipulations
Use cohort analysis to investigate how groups change over time Use SQL's powerful functions
and operators for text analysis Detect outliers in your data and replace them with alternate
values Establish causality using experiment analysis also known as A B testing.
