This is not a reference book. There are many exciting 500+ pages SQL reference books out there. This book contains only bite-size tips and tricks. This book is written by a developer and of course most likely from a developer point of view. I know there are DBAs who may or may not 100% agree with all the solutions that I proposed in the book. Sometimes even DBAs do not 100% agree with each other. The examples and some topics are in Transact-SQL (T-SQL) for Microsoft SQL Server. However, most of them also apply to other SQL databases. All queries have been tested in SQL Server 2014 and checked in as Gists in GitHub.
Author: Weiran Ye