Oracle SQL Revealed

Executing Business Logic in the Database Engine

Alex Reprintsev

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English

APress
10 April 2018

Web programming; Oracle

Write queries using little-known, but powerful, SQL features implemented in Oracle's database engine. You will be able to take advantage of Oracle's power in implementing business logic, thereby maximizing return from your company's investment in Oracle Database products. Important features and aspects of SQL covered in this book include the model clause, row pattern matching, analytic and aggregate functions, and recursive subquery factoring, just to name a few. The focus is on implementing business logic in pure SQL, with a comparison of different approaches that can be used to write SELECT statements to return results that drive good decision making and competitive action in the marketplace.

This book covers features that are often not well known, and sometimes not implemented in competing products. Chapters on query transformation and logical execution order provide a grasp of the big picture in which the individual SQL features described in the other chapters are executed. Also included are a discussion on when to use the procedural capabilities from PL/SQL, and a series of examples showing different mixes of SQL features being applied in common types of queries that you are likely to encounter. What You Will Learn

Gain competitive advantage from Oracle SQL

Know when to step up to PL/SQL versus staying in SQL

Become familiar with query transformations and join mechanics Apply the model clause and analytic functions to business intelligence queries Make use of features that are specific to Oracle Database, such as row pattern matching

Understand the pros and cons of different SQL approaches to solving common query tasks Traverse hierarchies using CONNECT BY and recursive subquery factoring

Who This Book Is For Database programmers with some Oracle Database experience. The book is also for SQL developers who are moving to the Oracle Database platform or want to learn unique features of its query engine. Both audiences will learn to apply the full power of Oracle's own SQL dialect to commonly encountered types of business questions and query challenges.

By: Alex Reprintsev
Imprint: APress
Country of Publication: United States
Edition: 1st ed.
Dimensions: Height: 235mm, Width: 155mm,
Weight: 617g
ISBN: 9781484233719
ISBN 10: 1484233719
Pages: 389
Publication Date: 10 April 2018
Audience: Professional and scholarly , Undergraduate
Format: Paperback
Publisher's Status: Active

Part I: Features and Theory1. Joins2. Query Transformations3. Analytic Functions4. Aggregate Functions5. Hierarchical Queries: CONNECT BY6. Recursive Subquery Factoring7. Model8. Row Pattern Matching: match_recognize9. Logical Execution Order of Query Clauses10. Turing Completeness Part II: PL/SQL and Patterns11. When PL/SQL is Better12. Solving SQL Quizzes13. Appendix A: Useful Oracle Links

Alex Reprintsev has more than 10 years of experience in database development using various databases, including Oracle, Microsoft SQL Server, MySQL, DB2, and modern SQL engines for Big Data such as Hive and Impala. He has successfully delivered applications for various customers covering different workload types such as OLTP, OLAP, and mixed workloads. During his journey, Alex has faced a number of challenges related to implementing business logic and tuning SQL for performance. He believes details really do matter, and that it is important to know and exploit the full feature set of whatever database engine you choose to build your business around.