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Beginning Database Design: From Novice to Professional (Beginning Apress) (Anglais) Broché – 29 juin 2012


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Descriptions du produit

Biographie de l'auteur

Clare Churcher is currently a senior lecturer in the Department of Applied Computing at Lincoln University, New Zealand. She holds a degree in physics with first class honors and completed a Ph.D in physics at the University of Canterbury, New Zealand. She has done postdoctoral research in the Cavendish Laboratory at the University of Cambridge, England. Clare's research interests are in the management and visualization of data especially for scientific research. She has a background in database design, and has taught programming, analysis and design of information systems, and database management at undergraduate level, as well as software engineering and scientific visualization at post graduate level.



Détails sur le produit

  • Broché: 252 pages
  • Editeur : APress; Édition : 2nd ed. 2012 (29 juin 2012)
  • Langue : Anglais
  • ISBN-10: 1430242094
  • ISBN-13: 978-1430242093
  • Dimensions du produit: 19 x 1,4 x 23,5 cm
  • Moyenne des commentaires client : 5.0 étoiles sur 5  Voir tous les commentaires (1 commentaire client)
  • Classement des meilleures ventes d'Amazon: 194.540 en Livres anglais et étrangers (Voir les 100 premiers en Livres anglais et étrangers)
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Format: Broché Achat vérifié
La conception des bases de données est un art difficile qui fait se rencontrer un client des règles dites et non dites de son métier, et un informaticien qui ne connait rien à ces règles mais connaît celles de son métier. La rencontre est délicate, pleines de non-dits et de conclusions hâtives, et elle peut aboutir à un résultat catastrophique. Beaucoup d'ouvrages sur la question n'arrangent pas les choses en se focalisant sur les règles d'usages des notations pour informaticiens mais pas sur le lien entre ces notations et les réalités de terrain.

Cet ouvrage est un excellent antidote car il part du terrain et se focalise sur le fait même de modéliser informatiquement les besoins du client. Pour un même besoin, il peut exposer plusieurs modélisations, qui utilisent toutes correctement les notations, mais ne sont pas toutes également adaptées au besoin, et il explique pourquoi. Cet ouvrage s'intéresse donc au sens de la modélisation, beaucoup plus qu'aux notations de la modélisation.

Il est donc essentiel pour l'étudiant en informatique, mais aussi pour l'utilisateur occasionnel d'outils de bases de données. En effet ces outils popularisent l'usage de bases de données, ce qui est excellent, mais laissent parfois croire que concevoir une base de données est d'abord une question de boîtes et de flèches, et de déterminer si une flèche doit être pleine ou pointillée, ou doit avoir une tête ronde ou pointue. Ce livre rappelle que la première question est celle de chercher à comprendre l'usage qui doit être fait de la base de données que l'on conçoit.

L'ouvrage est très bien écrit, guidé par l'exemple mais bien structuré en thèmes, pas encombré de symbolisme mais précis.
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Commentaires client les plus utiles sur Amazon.com (beta)

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7 internautes sur 7 ont trouvé ce commentaire utile 
Got Data? Here's a guide on how to manage it! 13 février 2014
Par Amazon Customer - Publié sur Amazon.com
Format: Format Kindle Achat vérifié
What this book is: It's a guide to learn how to design databases. Expect to learn new ways of thinking about the data you have and how to anticipate future data requirements. You'll also learn the kinds of questions you should ask in order to get an understanding of how the data will be used and what other data might be helpful.

What it is not: Don't expect to learn much about any specific Database software. It won't teach you much SQL, Microsoft Access, or any other Database software. (There are some section that bring up certain areas of these topics and basic Database Querying is discussed, but it's far from being in depth.)

The majority of the book explains how a database can be designed so that it match the needs of most clients, and how to anticipate the future needs of a client. It discussions the relationships between data and how to maintain those relationships. It highlights common mistakes in database design that can add unintended limitations and shows alternate ways of designing the same databases to allow the data freedom to grow.

I purchased this book for two reasons. One is that I'm a firm believer in learning and mastering fundamentals. In my case, I do a lot of computer programming. I've learned that the most important part of any software is it's data. Another reason is that I was assigned a project at work that involved updating a database to meet a new requirement. (I don't find the fundamentals as terribly interesting to study (like most people), but their value is priceless).

Each chapter includes review questions at the end to put into practice what you learned. There is not any solutions given to help you know if you answered the questions correctly, but it helps to you go back and review some of the topics for better learning.

I detracted one star for the sake of the Kindle version of the book not being correctly formatted. The Kindle version identifies the Topic Headers as "Chapters" rather than having the Chapters as "Chapters". Kindle readers estimate how much time till I've completed reading a chapter, but throughout the entire book, it was estimating how much time until the next section. Rather annoying. (Not sure if this is the fault of Amazon or Apress).

Despite that, I can give my recommendation of the content of this book on this topic. Mastering these fundamentals will truly make you a "Professional" database designer.
3 internautes sur 3 ont trouvé ce commentaire utile 
Great book for novices 17 mars 2013
Par Roberto Vega - Publié sur Amazon.com
Format: Format Kindle
I haven't studied anything about databases before, and this book give me a great understanding of the basics. Better, I could start working in my projects right after finishig the book. I would recommend it to anyone who wants to start studying databases.
4 internautes sur 5 ont trouvé ce commentaire utile 
Great for beginners 15 février 2015
Par J. T. - Publié sur Amazon.com
Format: Broché
I am a software developer with over 7 years of experience. My job requires me to work with a database that isn't relational, and that no one has really heard of. I finally took the plunge to learn more about the mainstream databases, and started with this book.

This book is great for people starting out with databases. As an experienced developer, this book was an easy read for me. I did learn some new things. If you're starting out and don't have much experience, you'd find the book very useful. It has all the concepts laid out in a way that is easy to read and understand.

My only complaint is that sometimes the pictures don't really match up with what the author is talking about. The worst is in Chapter 6 where the picture shows the data model for customers, purchases and products, but the text referring to the picture talks about animals, fish, mammals, birds, etc. This sounds particularly bad, but I didn't deduct any stars because this is the worst one and isn't representative of the overall quality of the book, and if you just didn't consider the picture at all, the text would still do a decent enough job that you could create a mental picture of your own. But it sure is an effort on the reader's part. I also checked the errata on Apress website and it seemed more like a forum than actual posts by the author or the publisher.

Beyond that, the font size sure is small, but it's not unreadable. And I'd wish the author would talk about big, multi-user databases, but that might be a little too advanced for the level of reader that the book is targeting.

Overall, this book is great for beginners. If you want to learn SQL in addition to database design, you should consider getting another book on SQL. The author herself asks the reader to do so in Chapter 10 - Query Basics.

Finally, I'm going to list a few books that I plan to read on the topic, in case it helps other readers with where to go from here. I'm going to read Database Design for Mere Mortals, which seems to have pretty much the same content but I'll still read it just to get another perspective. Then I'm going for Fundamentals of Database Systems, which is more advanced. I'll also be reading a few books on NoSQL databases since those seem to be gaining popularity.
2 internautes sur 2 ont trouvé ce commentaire utile 
Add to Your Essential Database Development Library 22 novembre 2013
Par Amazon Customer - Publié sur Amazon.com
Format: Format Kindle Achat vérifié
Add this book to your essential Database Development Library. Excellent overview of important database design concepts and from a multi-platform perspective! Also, page numbers included in ebook that accurately map to printed edition.
1 internautes sur 1 ont trouvé ce commentaire utile 
One of the best technical books I have ever read 6 décembre 2014
Par Fooled by Randomness - Publié sur Amazon.com
Format: Format Kindle
Having suffered through a college course and many books that used many buzz-words from db theory without providing any useful way to apply the concepts, I found this book to be an absolute joy to use. I'm currently writing a web-app, and the concepts in this book are wonderfully explained, and are immediately 'actionable' (to use a buzzword of my own...). Every concept is explained in a level of detail appropriate to a 'novice', but also in the form of heuristics ('rules of thumb') in a way that makes them easy to apply in actual data modeling and database design. An example might be "should I store a piece of data as an attribute in an existing table, or in a separate table?" That is exactly the kind of practical question I faced when designing my own database, which most other books couldn't give me a meaningful answer to.
This book was helpful both in explaining the concepts before doing the design work, and as a checklist to use during the design and when writing queries. I plan on buying her other title on sql queries which I hope will be equally good.
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