The Art of SQL

Author: Stephane Faroult,Peter Robson

Publisher: "O'Reilly Media, Inc."

ISBN: 9780596555368

Category: Computers

Page: 372

View: 7869

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For all the buzz about trendy IT techniques, data processing is still at the core of our systems, especially now that enterprises all over the world are confronted with exploding volumes of data. Database performance has become a major headache, and most IT departments believe that developers should provide simple SQL code to solve immediate problems and let DBAs tune any "bad SQL" later. In The Art of SQL, author and SQL expert Stephane Faroult argues that this "safe approach" only leads to disaster. His insightful book, named after Art of War by Sun Tzu, contends that writing quick inefficient code is sweeping the dirt under the rug. SQL code may run for 5 to 10 years, surviving several major releases of the database management system and on several generations of hardware. The code must be fast and sound from the start, and that requires a firm understanding of SQL and relational theory. The Art of SQL offers best practices that teach experienced SQL users to focus on strategy rather than specifics. Faroult's approach takes a page from Sun Tzu's classic treatise by viewing database design as a military campaign. You need knowledge, skills, and talent. Talent can't be taught, but every strategist from Sun Tzu to modern-day generals believed that it can be nurtured through the experience of others. They passed on their experience acquired in the field through basic principles that served as guiding stars amid the sound and fury of battle. This is what Faroult does with SQL. Like a successful battle plan, good architectural choices are based on contingencies. What if the volume of this or that table increases unexpectedly? What if, following a merger, the number of users doubles? What if you want to keep several years of data online? Faroult's way of looking at SQL performance may be unconventional and unique, but he's deadly serious about writing good SQL and using SQL well. The Art of SQL is not a cookbook, listing problems and giving recipes. The aim is to get you-and your manager-to raise good questions.
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The Art of Sql Server Filestream

Author: Jacob Sebastian,Sven Aelterman

Publisher: N.A

ISBN: 9781906434892

Category: Computers

Page: 512

View: 2909

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Storing large object data in the database offers a number of benefits, but introduces performance challenges. Conversely, storing large object data in the file system has overriding performance advantages, but fails to offer some of the basic data integrity, security and manageability features that are required for business data, and which SQL Server provides. Up to now, most people have adopted file system storage by necessity, and often struggled to overcome the associated shortcomings. This is exactly where SQL Server's new FILESTREAM feature fits in. Introduced in SQL Server 2008, it is implemented as an extension to the VARBINARY(MAX) data type and allows large object data to be stored in a special folder on the NTFS file system, while bringing that data under the transactional control of SQL Server. This book guides you step-by-step through every phase of FILESTREAM implementation, from enabling the feature, to creating FILESTREAM tables, to manipulating FILESTREAM data through the streaming APIs. We also cover, in detail, administration and troubleshooting of FILESTREAM databases and tables.No feature is used in isolation, so we devote several chapters to explaining how this new feature can be integrated into ASP.NET and Silverlight web applications, and into applications using Entity Framework. We also take a look at how well FILESTREAM plays with other SQL Server features such as SSIS and SSRS, pointing out various issues and pain-points along the way. We also devote a full chapter to the FileTable feature, a long-awaited new addition to FILESTREAM, with SQL Server 2012, which allows Windows applications to access FILESTREAM data exactly as is it were stored directly on the file system. We hope this book will get you started, quickly, with FILESTREAM, and then help you master all essential aspects of programming and administering FILESTREAM-enabled databases.
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The Art of SQL Server Analysis Services Howto

Author: James Graff

Publisher: Createspace Independent Publishing Platform

ISBN: 9781540656445

Category:

Page: 122

View: 9434

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Microsoft SQL Server is a relational database management system developed by Microsoft. As a database server, it is a software product with the primary function of storing and retrieving data as requested by other software applications-which may run either on the same computer or on another computer across a network (including the Internet). Microsoft markets at least a dozen different editions of Microsoft SQL Server, aimed at different audiences and for workloads ranging from small single-machine applications to large Internet-facing applications with many concurrent users. This updated and expanded second edition of Book provides a user-friendly introduction to the subject, Taking a clear structural framework, it guides the reader through the subject's core elements. A flowing writing style combines with the use of illustrations and diagrams throughout the text to ensure the reader understands even the most complex of concepts. This succinct and enlightening overview is a required reading for all those interested in the subject . We hope you find this book useful in shaping your future career & Business.
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The Art of High Performance SQL Code

SQL Server Execution Plans

Author: Grant Fritchey

Publisher: N.A

ISBN: 9781906434021

Category: Computers

Page: 242

View: 3389

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Execution plans show you what's going on behind the scenes in SQL Server. They can provide you with a wealth of information on how your queries are being executed by SQL Server, including: Which indexes are being used, and where no indexes are being used at all. How the data is being retrieved, and joined, from the tables defi ned in your query. How aggregations in GROUP BY queries are put together. The anticipated load and the estimated cost that all these operations place upon the system. Grant Fritchey's book is the only in-depth look at how to improve your SQL query performance through careful design of execution plans. Sample chapters of the ebook have garnered stunning reviews, such as: "All I can say is WOW. This has to be the best reference I have ever seen on Execution Plans in SQL Server. My hats off to Grant Fritchey" Jonathan Kehayias.
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Expert T-SQL Window Functions in SQL Server

Author: Kathi Kellenberger,Clayton Groom

Publisher: Apress

ISBN: 1484211030

Category: Computers

Page: 152

View: 8827

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Expert T-SQL Window Functions in SQL Server takes you from any level of knowledge of windowing functions and turns you into an expert who can use these powerful functions to solve many T-SQL queries. Replace slow cursors and self-joins with queries that are easy to write and fantastically better performing, all through the magic of window functions. First introduced in SQL Server 2005, window functions came into full blossom with SQL Server 2012. They truly are one of the most notable developments in SQL in a decade, and every developer and DBA can benefit from their expressive power in solving day-to-day business problems. Begin using windowing functions like ROW_NUMBER and LAG, and you will discover more ways to use them every day. You will approach SQL Server queries in a different way, thinking about sets of data instead of individual rows. Your queries will run faster, they will be easier to write, and they will be easier to deconstruct and maintain and enhance in the future. Just knowing and using these functions is not enough. You also need to understand how to tune the queries. Expert T-SQL Window Functions in SQL Server explains clearly how to get the best performance. The book also covers the rare cases when older techniques are the best bet. Stop using cursors and self-joins to solve complicated queries. Become a T-SQL expert by mastering windowing functions. Teaches you how to use all the window functions introduced in 2005 and 2012. Provides real-world examples that you can experiment with in your own database. Explains how to get the best performance when using windowing functions.
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Sql Success - Database Programming Proficiency

Author: Stephane Faroult

Publisher: Roughsea Limited

ISBN: 9781909765009

Category: SQL (Computer program language)

Page: 592

View: 7623

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SQL Success is about problem-solving in SQL. It bridges the gap between dry and dull database theory books, and developer books that focus on giving recipes without explaining sufficiently the reasons behind the recipes or discussing alternative solutions. Many developers struggle with SQL due to the contrast between the top-down logic of most programming languages and SQL's set-based approach. SQL Success aims to be different. This book is more than syntax examples. SQL Success explains how to use SQL to solve problems, and covers syntax in the process-not as the focus, but as a tool toward accomplishing the objective. SQL Success also shows something that most other books do not: the pitfalls and traps of SQL, a deceptively simple language, and how easy it is to get a query wrong. Written in a conversational way, SQL Success talks about logic more than theory, avoids jargon, and refers to common-sense more than rules. It ignores features that are rarely used and tries to avoid information overload. The intention of SQL Success is not to cover every aspect of all variants of SQL. The goal is to cover everything that is of practical use. That goal is informed by the author's many years of practical experience leading an understanding of what professional developers need to know, the common mistakes that are made, and how those mistakes can be avoided. * Focuses on the practical implications of theory. * Emphasizes accuracy and efficiency. * Teaches how to "think SQL," not merely the syntax. * Applies to Oracle, SQL Server, MySQL, PostgreSQL, DB2, and SQLite. * Suitable for college-level database courses, SQL certification preparation, and professionals who want to take their database skills to the next level. * Bolstered by downloadable files and online database with practice exercises at http: //edu.konagora.com. * Includes resources for instructors. About the author: Stephane Faroult has been performing database consultancy work for more than a quarter of a century with major French companies; he taught Computer Science undergraduates a long time ago and many professional developers since then. He is the author of two professional books, The Art of SQL and Refactoring SQL Applications (both by O'Reilly). SQL Success is a prequel to those books, giving readers a strong foundation in SQL."
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The Art of Hacking

Author: Anto.Y

Publisher: Lambert Academic Publishing

ISBN: 3848426056

Category: Computer networks

Page: 268

View: 2932

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Hacker is a person who uses his creativity and knowledge to overcome limitations, often in technological contexts. Introduction About Hacking If you ask a random person on the street what a hacker is, they might recall ever seeing the word in connection to some criminal who `hacked' some website and stole for example credit card-data. This is the common image the media sketches of the `hacker'. The somewhat more informed person might think that a hacker is not really a criminal but somebody with a lot of knowledge about computers and security. Of course this second definition is a lot better than the first one, but I still don t think it catches the essence of what makes one a hacker. First of all, hacking hasn't necessarily got to do with computers. There have been hackers in the Medieval Ages and maybe even in the Stone Ages. The fact that they used other means to express their skills and knowledge doesn't make them less than any hacker in the modern ages. We are just blessed with the fact that at this moment we are all surrounded by technology, a lot of people even are dependent of it.
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The Language of SQL

Author: Larry Rockoff

Publisher: Addison-Wesley Professional

ISBN: 0134658337

Category: Computers

Page: 240

View: 7104

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This is the eBook of the printed book and may not include any media, website access codes, or print supplements that may come packaged with the bound book. The Language of SQL, Second Edition Many SQL texts attempt to serve as an encyclopedic reference on SQL syntax -- an approach that is often counterproductive, because that information is readily available in online references published by the major database vendors. For SQL beginners, it’s more important for a book to focus on general concepts and to offer clear explanations and examples of what various SQL statements can accomplish. This is that book. A number of features make The Language of SQL unique among introductory SQL books. First, you will not be required to download software or sit with a computer as you read the text. The intent of this book is to provide examples of SQL usage that can be understood simply by reading. Second, topics are organized in an intuitive and logical sequence. SQL keywords are introduced one at a time, allowing you to grow your understanding as you encounter new terms and concepts. Finally, this book covers the syntax of three widely used databases: Microsoft SQL Server, MySQL, and Oracle. Special “Database Differences” sidebars clearly show you any differences in syntax among these three databases, and instructions are included on how to obtain and install free versions of the databases. This is the only book you need to gain a quick working knowledge of SQL and relational databases. ·Learn How To... Use SQL to retrieve data from relational databases Apply functions and calculations to data Group and summarize data in a variety of useful ways Use complex logic to retrieve only the data you need Update data and create new tables Design relational databases so that data retrieval is easy and intuitive Use spreadsheets to transform your data into meaningful displays Retrieve data from multiple tables via joins, subqueries, views, and set logic Create, modify, and execute stored procedures Install Microsoft SQL Server, MySQL, or Oracle
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Sql For Oracle 9i By P.S. Deshpande

Author: P.S. Deshpande

Publisher: Dreamtech Press

ISBN: 9788177223446

Category:

Page: 248

View: 7435

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This book brings to you the complete, latest account of SQL and PLSQL for Oracle. It gives you two things. One, it upgrades your knowledge. Two the innumerable, exciting examples help you build a better skill in SQL/PLSQL. The book covers the basic features of Oracle 8x, 8i and 9i. The in-depth treatment of the subject in a lucid language will give you an enjoyable learning experience as you have always had with our previous books on Oracle. The highlight of the book is a clear yet incisive discussion of the latest, advanced features that come with Oracle 9i. It upgrades your knowledge to the state of the art in SQL/PLSQL for Oracle.The topics are presented in a logical sequence that covers SQL operators, LOB, array and nested tables, analytical queries and join along with advanced features in triggers, cursor, subprogram, packages and locking in Oracle. Both the SQL and PLSQL section contain two full chapters of only exercises. Each chapter contains fully sorted assignments which would be of great help for the readers to use as a reference for their course as well as to enhance their learning experience.
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Data Mining with Microsoft SQL Server 2008

Author: Jamie MacLennan,ZhaoHui Tang,Bogdan Crivat

Publisher: John Wiley & Sons

ISBN: 1118080009

Category: Computers

Page: 672

View: 1940

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Understand how to use the new features of Microsoft SQL Server 2008 for data mining by using the tools in Data Mining with Microsoft SQL Server 2008, which will show you how to use the SQL Server Data Mining Toolset with Office 2007 to mine and analyze data. Explore each of the major data mining algorithms, including naive bayes, decision trees, time series, clustering, association rules, and neural networks. Learn more about topics like mining OLAP databases, data mining with SQL Server Integration Services 2008, and using Microsoft data mining to solve business analysis problems.
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