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Data Analysis Using SQL and Excel, 2nd Edition de Gordon S Linoff

Data Analysis Using SQL and Excel, 2nd Edition

Autor Gordon S Linoff
en Limba Engleză Paperback – 24 oct 2017

Găsim în această carte o resursă practică remarcabilă, construită în jurul ideii că analiza sofisticată de business nu necesită întotdeauna instrumente costisitoare, ci poate fi realizată direct de pe desktop. Notăm cu interes prezența a peste 100 de pagini de conținut nou în această a doua ediție revizuită, care integrează seturi de date reale disponibile online pentru a ancora conceptele teoretice în exerciții aplicate. Structura cursului urmează o progresie logică, începând cu bazele explorării datelor în tabele, trecând prin statistica aplicată (cum ar fi testul chi-pătrat) și culminând cu tehnici complexe de data mining executate prin SQL. Remarcăm modul în care autorul Gordon S Linoff reușește să explice nu doar implementarea tehnică, ci și contextul de business. Cartea acoperă arii critice precum analiza de supraviețuire pentru înțelegerea retenției clienților, modelele de regresie liniară și regulile de asociere. Spre deosebire de lucrarea sa anterioară, Data Mining Techniques, care servește drept introducere generală în domeniu, Data Analysis Using SQL and Excel se concentrează strict pe simbioza dintre limbajul de interogare și cel mai popular instrument de calcul tabelar. În plus, volumul dedică un spațiu generos performanței, oferind bune practici pentru scrierea interogărilor SQL eficiente. Această ediție este o alternativă excelentă la Advanced Analytics with Transact-SQL de Dejan Sarka pentru cursurile de analiză de date, cu avantajul că nu se limitează doar la motorul SQL, ci folosește Excel-ul pentru prezentarea vizuală și interpretarea rezultatelor. De asemenea, oferă o profunzime analitică mai mare decât Learn Data Mining Through Excel, incluzând tehnici de modelare direct în baza de date.

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Specificații

ISBN-13: 9781119021438
ISBN-10: 111902143X
Pagini: 800
Dimensiuni: 187 x 233 x 43 mm
Greutate: 1.33 kg
Ediția:2nd Revised edition
Editura: Wiley
Locul publicării:Hoboken, United States

Public țintă

Business managers, data analysts, data miners, DBAs.   Their level of technical expertise may range from MBAs who know Excel but little about databases to data miners who are not familiar with the capabilities of these tools

De ce să citești această carte

Recomandăm această carte analiștilor de date și managerilor care doresc să extragă valoare din datele de business fără a apela la software specializat. Cititorul câștigă competențe în SQL și Excel, învățând să realizeze analize de tip 'market basket' și să previzioneze comportamentul clienților. Este un ghid esențial pentru cei care vor să treacă de la simple rapoarte la modelare predictivă folosind uneltele pe care le au deja la dispoziție.

Despre autor

Gordon S Linoff este un expert recunoscut în domeniul data mining-ului aplicat în afaceri și co-fondator al Data Miners Inc. Cu o experiență vastă în transformarea datelor brute în informații strategice, el a ajutat numeroase companii să își optimizeze relațiile cu clienții. Este co-autor al lucrării de referință Data Mining Techniques, considerată o piatră de temelie a disciplinei încă de la sfârșitul anilor '90. Expertiza sa se concentrează pe utilizarea instrumentelor accesibile pentru a rezolva probleme complexe de business, abordare care definește întreaga sa operă editorială.

Descriere scurtă

A practical guide to data mining using SQL and ExcelData Analysis Using SQL and Excel, 2nd Edition shows you how to leverage the two most popular tools for data query and analysis SQL and Excel to perform sophisticated data analysis without the need for complex and expensive data mining tools. Written by a leading expert on business data mining, this book shows you how to extract useful business information from relational databases. You′ll learn the fundamental techniques before moving into the "where" and "why" of each analysis, and then learn how to design and perform these analyses using SQL and Excel. Examples include SQL and Excel code, and the appendix shows how non–standard constructs are implemented in other major databases, including Oracle and IBM DB2/UDB. The companion website includes datasets and Excel spreadsheets, and the book provides hints, warnings, and technical asides to help you every step of the way.
Data Analysis Using SQL and Excel, 2nd Edition shows you how to perform a wide range of sophisticated analyses using these simple tools, sparing you the significant expense of proprietary data mining tools like SAS.
  • Understand core analytic techniques that work with SQL and Excel
  • Ensure your analytic approach gets you the results you need
  • Design and perform your analysis using SQL and Excel
Data Analysis Using SQL and Excel, 2nd Edition shows you how to best use the tools you already know to achieve expert results.

Descriere

Learn to perform sophisticated data analysis using SQL and Excel
SQL is the essential language for querying databases, and Excel is the most popular tool for data presentation and analysis. Combined, they create a powerful, accessible tool for business data analysis. Many important types of analysis do not require complex and expensive data mining tools. The answers are on your desktop.
This no–nonsense guide, written by a leading expert on business data mining, shows you how to design and perform sophisticated data analysis using SQL and Excel. The highly regarded first edition has been revised to cover the newest enhancements to SQL and Excel, including new techniques and real–world examples. This edition features the up–to–date information business managers and data analysts need.
The book begins with the basics of SQL for data mining, Excel to present results, and simple ideas from statistics to understand your data. Core analytic techniques are explained as you learn to run them on real data using Excel and SQL. The chapters progress from basic queries to increasingly detailed applications as you learn why and when to perform specific types of analysis, how to design and perform them, and powerful ways of presenting the results. Each step explains the business context, the technical approach, and the implementation in these familiar tools.
As you progress, you′ll discover the importance of geography, how to chart changes in data over time, how to use survival analysis to understand customer tenure and churn, and the factors that affect survival. You will explore methods for analyzing customer purchases patterns, market basket analysis, and association rules. Included are important data mining models in SQL, linear regression models, naive Bayesian models, information on building a customer signature, methods for analyzing results, including cumulative gains charts and ROC charts, best practices for using SQL, and getting the best performance for your queries.
With more than 100 pages of new material, the fully revised second edition of Data Analysis Using SQL and Excel enables you to:

 

  • Understand core analytic techniques that work with SQL and Excel
  • Analyze and interpret data in a table
  • Present data professionally in Excel charts
  • Apply the chi–square measure and other important statistical techniques in both SQL and Excel
  • Understand best practices for SQL queries, with a chapter devoted to performance
  • Use survival analysis to understand time–to–event problems, both for single events and for repeated events
  • Use market basket analysis to understand purchasing behavior
  • Identify the analytic approach that gets the result you′re looking for
  • Avoid common pitfalls
  • Maximize the value of the data you have about your customers and your business

The companion website includes datasets for all examples in the book as well as related Excel spreadsheets.
www.wiley.com/go/dataanalysisusingsqlandexcel2e

 

Cuprins

Foreword xxxiii
Introduction xxxvii
Chapter 1 A Data Miner Looks at SQL 1
Chapter 2 What s in a Table? Getting Started with Data Exploration 49
Chapter 3 How Different Is Different? 97
Chapter 4 Where Is It All Happening? Location, Location, Location 145
Chapter 5 It s a Matter of Time 197
Chapter 6 How Long Will Customers Last? Survival Analysis to Understand Customers and Their Value 255
Chapter 7 Factors Affecting Survival: The What and Why of Customer Tenure 315
Chapter 8 Customer Purchases and Other Repeated Events 367
Chapter 9 What s in a Shopping Cart? Market Basket Analysis 421
Chapter 10 Association Rules and Beyond 465
Chapter 11 Data Mining Models in SQL 507
Chapter 12 The Best–Fit Line: Linear Regression Models 561
Chapter 13 Building Customer Signatures for Further Analysis 609
Chapter 14 Performance Is the Issue: Using SQL Effectively 655
Appendix Equivalent Constructs Among Databases 703
Index 731

Notă biografică

GORDON S. LINOFF has been working with databases for more decades than he cares to admit. He starting learning about SQL by memorizing the SQL 92 standard while leading a development team (at the now–defunct Thinking Machines Corporation) writing the first high–performance database focused on the complex queries needed for decision support.
After that endeavor, Gordon co–founded Data Miners in 1998, a consulting practice devoted to data mining, analytics, and big data. A constant theme in his work is data and often data in relational databases. His SQL skills have only gotten stronger over the years. In 2014, he was the top contributor to Stack Overflow, the leading question–and–answer–site for technical questions.
His other books include the bestselling Data Mining Techniques, Third Edition; Mastering Data Mining; and Mining the Web which focus on data mining and analysis. This book follows on the popularity of the first edition, with a practical focus on how to actually get and interpret results.