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Product details
File Size: 1761 KB
Print Length: 634 pages
Simultaneous Device Usage: Unlimited
Publisher: O'Reilly Media; 1 edition (December 16, 2005)
Publication Date: February 9, 2009
Sold by: Amazon Digital Services LLC
Language: English
ASIN: B0026OR3KI
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#134,138 Paid in Kindle Store (See Top 100 Paid in Kindle Store)
It's the first SQL book I picked up, but be warned, it is for at least intermediate level users. So by the time I reached Chapter 3, I gave up and bought Ben-Gan's Fundamentals of T-SQL first (which I recommend going through before this book if you are a beginner).If you are using T-SQL, I think Ben-Gan's book is a perfect intro to this one. However, this is the book that takes you to another level. This is the book that enables you to find solutions that others won't be able to. This is the book that makes you a player at work if you aren't a developer and you write SQL. There are no functions, triggers, optimization, table and view creation details. This book is about pulling whatever you want with those things already created (although there is a chapter on metadata and another on inserting/updating). So it isn't for everyone (Developers and Beginners especially).Also, the book's date may scare people. I mean, the book could use an update as it is working with SQL Server 2005 (if you write T-SQL like I do). Based on the date, I'm sure the editions of the other platforms are outdated as well. With SQL Server 2005 capabilities though, you still get Window Functions, Pivots, string extraction, cast, convert, etc., and some of the Oracle functions not in SQL Server 2005 are a part of T-SQL in later editions, so at times, you can use the Oracle solution or pieces of it if you are using the latest edition of SQL Server (if you need to use lead and lag for example). The important functions that still exist are there for the most part (Concat for example, is not).Most people know how to use partitioning, cases, and subqueries, but can they cast an integer as a string to cast it again into decimal, average that decimal using a case statement that filters out negative values and partition the average as a window function based on multiple criteria all in one line? This book turns you into a magician, and it is all hands on examples, no filler, no lengthy unneeded explanations. Learn by doing.
If you are searching for a book to walk you through learning SQL - this is not your book. If you already know your way around SQL but curious about how to achieve a certain result - this book is awesome! Even though I've owned this book for nearly 2 years - I still find myself referencing it from time to time!I love all of the great code examples for very real and common problems. This book will not hold your hand and walk you through the language but it will provide you all the resources to become better acquainted with the language and further upgrade your skill set.My experience: Former BI analyst and current Sr. Developer.
I was tasked with deliverying 6 key-performance-indicator (KPI) using SQL and Crystal Reports and an Oracle database. And for three disparate areas in the world (USA, Singapore, and The Netherlands).Sure, I could write a 'SELECT' statement or perform and 'UPDATE'.But, I did not know how to approach SQL as being a 'complete' solution for record selection.The Crystal Reports portion was not too much trouble.I was using the PL/SQL environment for creating the SQL. Oracle 10g.Mr. Molinaro's book was instrumental in having me develop what turned out to be some rather complex SQL.It took awhile to get to use SQL's window functions. But, the author's presentation/explanation made them more than approachable---and quite useful.I liked the explanations that covered the multiple vendors' database engines.I will make no pretense of having reached SQL knowledge 'nirvana'--However, there was more than one time where I was out of ideas on how to get/count certain data----The SQL Cookbook did its job by showinge 'yet another way' to approach a pressing problem with a solution.And one can gain a deep understanding of how SQL works. Always a plus for anyone that is new to an environment.If there was something like a SQL University, this book seems to be text that would work very well for giving students more than enough 'footing' to face the 'real' world. It did for me.I am more than pleased to have this book as part of my SQL 'library.'
I only dip into SQL every now and again, when I have to pull data for statistical analysis, so I might not be the best judge of the book. That being said, it looks like it has a lot of good code samples and other content. If you are an SQL coder, there is likely stuff there that will save you time and trouble.
When you work with SQL infrequently, as I do, but do things beyond the trivial, this book is an excellent way to dive right back into complex query tasks. This has been an invaluable reference that sits on my desk and gets pulled down when I need a guide to accomplish a task. It serves as a way to find a basic approach to the problem at hand and then I can adapt and perhaps combine one or more recipes to do the job. The time saved and effective solutions developed have proved this to be a valuable resource over and over again.I am not sure how effective this book would be for someone who works on intermediate or advanced queries on a frequent basis. The recipes run the gamut from simple to complicated. However, for someone who needs to dive back in the queries once a month or so, it is a great reference to have on hand. The database-agnostic approach has also benefited me as I moved from an Oracle shop, to an outdated SQL Server shop, to a modern SQL Server shop.
I am writing this review now, because a trick I learned from this book helped me reduce the execution time of an oracle 10g query from 37s to 1s. Yes, Oracle has these idiosyncrasies that can drive one nuts.I find myself visiting the solutions in the book over and over, especially when it comes to hierarchical queries or the queries that generate consecutive numeric values (I use these to generate sample data).I recommended the book to all my colleagues that do sql programming, and I am waiting for the second edition ;-)
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