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Practical Oracle SQL

Mastering the Full Power of Oracle Database

Write powerful queries using as much of the feature-rich Oracle SQL language as possible, progressing beyond the simple queries of basic SQL as standardized in SQL-92.
Both standard SQL and Oracle's own extensions to the language have progressed far over the decades in terms of how much you can work with your data in a single, albeit sometimes complex, SQL statement. Les mer
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Vår pris: 466,-

(Paperback) Fri frakt!
Leveringstid: Sendes innen 21 dager
På grunn av Brexit-tilpasninger og tiltak for å begrense covid-19 kan det dessverre oppstå forsinket levering.

Om boka

Write powerful queries using as much of the feature-rich Oracle SQL language as possible, progressing beyond the simple queries of basic SQL as standardized in SQL-92.
Both standard SQL and Oracle's own extensions to the language have progressed far over the decades in terms of how much you can work with your data in a single, albeit sometimes complex, SQL statement. If you already know the basics of SQL, this book provides many examples of how to write even more advanced SQL to huge benefit in your applications, such as:

Pivoting rows to columns and columns to rows
Recursion in SQL with MODEL and WITH clauses
Answering Top-N questions
Forecasting with linear regressions

Row pattern matching to group or distribute rows
Using MATCH_RECOGNIZE as a row processing engine

The process of starting from simpler statements in SQL, and gradually working those statements stepwise into more complex statements that deliver powerful results, is covered in each example. By trying out the recipes and examples for yourself, you will put together the building blocks into powerful SQL statements that will make your application run circles around your competitors.

What You Will Learn

Take full advantage of advanced and modern features in Oracle SQL

Recognize when modern SQL constructs can help create better applications
Improve SQL query building skills through stepwise refinement
Apply set-based thinking to process more data in fewer queries
Make cross-row calculations with analytic functions
Search for patterns across multiple rows using row pattern matching
Break complex calculations into smaller steps with subquery factoring


Who This Book Is For
Oracle Database developers who already know some SQL, but rarely use features of the language beyond the SQL-92 standard. And it is for developers who would like to apply the more modern features of Oracle SQL, but don't know where to start. The book also is for those who want to write increasingly complex queries in a stepwise and understandable manner. Experienced developers will use the book to develop more efficient queries using the advanced features of the Oracle SQL language.

Fakta

Innholdsfortegnelse

Part I. Core SQL
1. Correlating Inline Views2. Pitfalls of Set Operations3. Divide and Conquer with Subquery Factoring4. Tree Calculations with Recursion5. Functions Defined Within SQL6. Iterative Calculations with Multidimensional Data7. Unpivoting Columns to Rows8. Pivoting Rows to Columns9. Splitting Delimited Text10. Creating Delimited Text
Part II. Analytic Functions11. Analytic Partitions, Ordering and Windows12. Answering Top-N Questions13. Ordered Subsets with Rolling Sums14. Analyzing Activity Logs with Lead15. Forecasting with Linear Regression16. Rolling Sums to Forecast Reaching Minimums
Part III. Row Pattern Matching17. Up and Down Patterns18. Grouping Data Through Patterns19. Merging Date Ranges20. Finding Abnormal Peaks21. Bin Fitting22. Counting Children in Trees

Om forfatteren

Kim Berg Hansen is a database developer from Middelfart in Denmark. As a youngster he originally wanted to work with electronics, and he tried computer programming and discovered that the programs he wrote worked well-unlike the electronics projects he soldered that often failed. This led to a VIC-20 with 5 kilobytes RAM and many hours programming in Commodore Basic.
Having discovered his talent, Kim financed computer science studies at Odense University with a summer job as sheriff of Legoredo, while learning methodology and programming in Modula-2 and C. From there he moved into consulting as a developer making customizations to ERP software. That gave him his first introduction to Oracle SQL and PL/SQL, with which he has worked extensively since the year 2000.
His professional passion is to work with data inside the database utilizing the SQL language to the fullest to achieve the best application experience for his application users. With a background fitting programs into 5 KB RAM, Kim hates to waste computing resources unnecessarily.




Kim shares his experience and knowledge by blogging at the kibeha.dk website, presenting at various Oracle User Group conferences, and being the SQL quizmaster at the Oracle Dev Gym. His motivation comes from peers who say "now I understand" after his explanations, and from end users who "can't live without" his application coding. He is a certified Oracle OCE in SQL, and an Oracle ACE Director.




Outside the coding world, Kim is married, loves to cook, and is a card-carrying member of the Danish Beer Enthusiasts Association.