ANTYWZORCE JZYKA SQL PDF

Antywzorce sql pdf. Typ danych FLOAT jzyka SQL, tak jak typ danych float w wikszoci jzykw programowania, koduje liczby rzeczywiste w. Antywzorce języka SQL. Jak uniknąć pułapek podczas programowania baz danych. Jan B Karwin. Karwin B., , Antywzorce języka. Antywzorce języka SQL. Jak unikać pułapek podcz Bill Karwin. zł · okladka. Audiobook w mp3; Mobi + Epub.

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Open Preview See a Problem? Thanks for telling us about the problem. Return to Book Page. Bill Karwin has helped thousands of people write better SQL and build stronger relational databases. Now he’s sharing his collection of antipatterns–the most common errors he’s identified in those thousands of requests for help. Most developers aren’t SQL experts, and most sq the SQL that gets used is inefficient, hard to maintain, and sometimes just plain wrong.

This boo Bill Karwin has helped thousands of people write better SQL and build stronger relational databases. This book shows you all the common mistakes, and then leads you through the best fixes. What’s more, it shows you what’s behind these fixes, so you’ll learn a lot about relational databases along the way.

Each chapter in this book helps you identify, explain, and correct a unique and dangerous antipattern. The chances are good that your application’s database layer already contains problems such as Index ShotgunKeyless EntryFear of the Unknownand Spaghetti Query. This book will help you and your team find them. Even better, it will also show you how to fix them, and how to avoid these and other problems in the future.

Now you can stamp out these common database errors once and for all. Whatever platform or programming language you use, whether you’re a junior programmer or a Ph.

You’ll also learn the best and most current technology for full-text search, how to design code that is resistant to SQL injection attacks, and other techniques for success.

Paperbackpages. Published July 2nd by Pragmatic Bookshelf first published June 25th To see what your friends thought of this book, please sign up.

To ask other readers questions about SQL Antipatternsplease sign up. Lists with This Book.

SQL Antipatterns by Bill Karwin

This book is not yet featured on Listopia. The book that every modern developer should read. As we all know, databases are an essential part of software development. And here we are.

You stopped to read this review and possibly rea The book that every modern developer should read. You stopped to read this review and possibly read the sample or go straight to read the book. What you need to know is that this is something worth reading and taking your time.

I, contrary to my ‘give it time’ advice, did not spend more than a week with this book. I justify 1 week as enough time to understand the issues since I faced most of them in projects that had databases falling in at least anti-patterns.

A big uzyka for the reader is the format used throughout the book – chapter intro, objective, anti pattern Really, really easy to read format that easily transforms the book into a reference book when you need to confirm an anti-pattern in your project and search for a solution asap. What’s most important to read and understand thoroughly is the “Logical Database Design Antywzogce chapters.

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I think this is where people make most of their bad decisions in RDB usage. The “Polymorphic associations” anti-patterns really resonated with me. That’s something that I’ve been trying to address a lot in projects and teams I participate in. Mostly successful, I convince them to keep the cleverness and trickiness out of the DB design and instead keep it simple without relying on polymorphic associations if possible. Other reviewers said that the “Application development Anti-patterns” section is a hit or miss in regards of content quality and relevance.

While it chews on the all-known topics nowadays of – ‘readable passwords’ and ‘sql injections’, the ‘pseudokey neat-freak’ isn’t exactly the sqo popular topic, is it?

Chapter 24 “Diplomatic Immunity” is a worth to be part of Robert C. Perfect scenarios that people face in a corporate environment of washed up responsibilities and diplomatic immunity. Chapter 25 “Magic Beans” is a bit weird. It starts off as an attack to ActiveRecord without focus and then transforms into something more reasonable.

I just want to warn everyone reading it, to give it a chance and read the whole of it. I did not like it until I reached the solutions part and it all made sense.

The author definitely could antywzorcs a different tone and language to get his point across in Either way, the solutions is mature and introducing an abstraction above the ActiveRecord objects usage in controllers is reasonable. Rails especially has the mysterious controller helpers that no one really understands, but the always-safe-bet is put your services-like logic in The book would shine even brighter in the solutions part if a way better relational database as PostgresSQL and a programming language with “class” as in style, wit, manners, good intentions were used.

Either way, this does not affect jzjka scoring. I’m giving great importance to the code examples quality in every tech book I read. I was pleasantly surprised to see all the code sections in the book having a code example file path that you can instantly find if you download the source code zip from the site.

The source code is not hosted on GitHub but nothing is ever perfect.

SQL Antipatterns

The final verdict is: Aug 02, Ronald sqo it really liked it. I’m a software developer who gets paid mostly for working on the back end portion of solutions and I’ve worked in both small and large companies. If I’m lucky, I’ll be working in an organization large enough to have full-time SQL experts who can help me out.

More times than not, however, the development team has to craft the SQL ourselves. As of late, I’ve been letting Hibernat I’m antyzorce software developer who gets paid mostly for working on the back end portion of solutions and I’ve worked in both small and large companies.

As of late, I’ve been letting Hibernate do most of the heavy lifting for me, trusting that it will generate reasonable SQL antywzorde keep me out of hot water.

I fully understand that, like most tools, Hibernate is only as useful as the developer’s understanding of it which is why I try and read up on the ins and outs slq Hibernate as much as I can. Avoiding the Pitfalls of Database Programming to help me understand if I was asking Hibernate to do something silly and I’m really glad that I did. Some of the anti-patterns I’ve seen before, like not using using constraints or using a column to mean multiple things, but there are many I haven’t seen before jzykz should now be able to spot.

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Antyqzorce enjoyed the discussions antywozrce security and can appreciate that storing passwords in the database is a bad idea I’ve seen that more than once and have a better understanding on how to protect against SQL injection attacks. The section on application development was a pleasant surprise to me because it talks about testing and possible migration strategies.

I also enjoyed the comparison of the Active Record pattern versus the Repository pattern as it convinced me that the decision to use Repository on my current project was a reasonable one. All in all, I loved the book and recommend that anybody who has to deal with a relational store pick up a copy and give it a read.

It isn’t a very long book but you get the sense that the advice given came from some hard learned lessons on the job. Apr 02, Jason rated it really ssql it Recommends it for: Sqo, this is based on B6. I was hoping to get a little more out of this book. I struggled for a long time with a database that had a large tree structure, so I’m a First, this is based on B6.

Antywzorce sql pdf

I struggled for a long time with a database that had a large angywzorce structure, so I’m always looking for better ways of dealing with trees in databases. After a lot of work, I finally ended up with what basically equates to the Enumerated Path pattern. I think the chapters are well written, and seem to cover a lot of issues a developer might encounter in his first few years of development. The author uses good, real world, examples written in clear language.

If you’re a developer struggling with database problems, I’d say, pick this book up. If you’ve been developing for upwards of 10 years, you can probably skip it, hopefully, you’ll already know most everything he covers.

Antywzorce jzyka sql pdf

Jul 08, Ji rated it liked it Shelves: This book was recommended by some programmer friends of mine, and proved to be a good read.

It is not about TSQL thought. The book is mainly about some basic ideas that people should have in mind when designing database models. Jun 24, Ispiriants Volodymyr rated it it was amazing Shelves: It’s a very good book for the people, who just learned SQL.

I regret that I did not read it before, because it will resolve some of issues during my work. Sep 09, Matias Fernandez rated it it was amazing. As someone struggling to design my website’s database, this book hit the spot. I couldn’t have imagined all the things I had wrong. I’m so glad I found this gem.

Feb 14, Michael Gaudet rated it really liked it. I thought this book was ok. Some are mistakes I would expect only a real newbie to make. Others, like SQL injection, are useful sections that try to dispel myths believed by experienced users even now. All in all, a decent read for a new SQL user, but if you have any experience with SQL you might want to skip this one for a newer reference. May 10, Lisa rated it it was ok.