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Product details
File Size: 7156 KB
Print Length: 248 pages
Simultaneous Device Usage: Up to 5 simultaneous devices, per publisher limits
Publisher: Microsoft Press; 1 edition (April 15, 2012)
Publication Date: April 15, 2012
Sold by: Amazon Digital Services LLC
Language: English
ASIN: B00JDMPHKY
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Amazon Best Sellers Rank:
#455,232 Paid in Kindle Store (See Top 100 Paid in Kindle Store)
This book is a refreshing alternative to the usual 900 page everything-and-the-kitchen sink tomes that seem to dominate this genre.Instead, it is focused and concise (200+ pages). And extremely well-written, by someone who clearly takes his teaching role seriously. Beyond just describing how to use the window functions, it does a great job of delving into the background needed to really understand how & why they work as they do.In addition to describing SQL Server 2012 support for window functions, the book also details those areas in which full support for standard SQL window functions has not yet been implemented in SQL Server. It also suggests improvements that could be made to both the standard and to MS SQL.Whenever possible, the book gives alternative queries constructed without the use of window functions. This is great as both a learning tool, and to convince you that in general you don't really want to go that route (non-window) if at all possible.If you want to learn both the subtleties and quotidian uses of SQL window functions, get this book. Your brain will light up with new possibilities.(If it helps credibility-wise, check out my mostly negative review of the same author's "Inside Microsoft SQL Server 2005: T-SQL Programming"--I am the proud holder of the "Most Helpful Critical Review" honor for that title. Ben-Gan's lucidity has increased considerably with this current effort.)
Since I actually used the sample chapters to solve a problem with updating all duplicate rows except the first duplicate in a set of duplicates I thought I should break down and buy the book. I consider it somewhat of a brain twister and will use this to further my query expertise. I am one of those DBA's that has so many instances to manage that I rarely ever get to do any coding for many years now. I am hoping this helps bring back some, and develope new, skills. I also decided to get the fundamentals book and will switch between the 2.For now i will give this 5 stars but I still think it could be made simpler and more practical for us 'regular' users. I will say the accuracy of the book and samples seems pretty good so far which is nice since it can be annoying when you run into samples you are trying to learn from that don't work in some articles by other authors I have read. This authors material and books seem very accurate.I wonder if regular expressions would be useful with these functions?
The book started off great explaining Window Functions; however I felt that there were certain parts that the author could have left out. For example, he went over some functionality that wasn't available in SQL SERVER; where I was hoping he would focus primarily with what was currently available. Overall, it's a good book; I'm definitely going to have to read it again.
My wife, a data scientist, studied this book and said she is now letting SQL server do most of the work without her having to write her own scripts. The examples on windowing and partition is very good and helpful.
Good explanations, nice examples.
Very interesting and not easy to grasp subject. I keep practicing...
Ben-Gan's books are always amazing! This one is fantastic!
The book has proven invaluable on the job in a current project.I had used 'window' functions in the past; however, I truly did not have a real understanding of what 'result set' I was working with. And, as correctly stated, performance was 'blazing' now that the use of a 'window' function is known to be using the current result set. While probably not a 'nugget' for SQL experts, just realizing that proved a real 'tip'...I have used other books by the author and found his instructional style quite pleasing to deal with considering the 'complexity' of how one 'should' think when dealing with SQL.
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