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Oracle SQL revealed : executing business logic in the database engine /
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 fe...
| Clasificación: | Libro Electrónico |
|---|---|
| Autor principal: | |
| Formato: | Electrónico eBook |
| Idioma: | Inglés |
| Publicado: |
[United States] :
Apress,
2018.
|
| Temas: | |
| Acceso en línea: | Texto completo (Requiere registro previo con correo institucional) |
MARC
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| 100 | 1 | |a Reprintsev, Alex, |e author. | |
| 245 | 1 | 0 | |a Oracle SQL revealed : |b executing business logic in the database engine / |c Alex Reprintsev. |
| 264 | 1 | |a [United States] : |b Apress, |c 2018. | |
| 264 | 4 | |c Ã2018 | |
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| 504 | |a Includes bibliographical references and index. | ||
| 588 | 0 | |a Online resource; title from PDF title page (EBSCO, viewed April 16, 2018). | |
| 505 | 0 | |a Intro; Table of Contents; About the Author; Introduction; Part I: Features and Theory; Chapter 1: Joins; ANSI Joins; Other Types of Joins; Oracle-Specific Syntax; ANSI vs. Oracle Native Syntax; Limitation of the Oracle Native Syntax; Unnesting Collections; Correlated Inline Views and Subqueries; ANSI to Native Transformation; Clearness and Readability; Mixing Syntax; Controlling Execution Plan; Limitations of ANSI; Summary; Chapter 2: Query Transformations; Summary; Chapter 3: Analytic Functions; Differences and Interchangeability of Functions; Summary; Chapter 4: Aggregate Functions. | |
| 505 | 8 | |a Pivot and Unpivot OperatorsCube, Rollup, Grouping Sets; Summary; Chapter 5: Hierarchical Queries: Connect by; Pseudocolumn Generation in Detail; Summary; Chapter 6: Recursive Subquery Factoring; Traversing Hierarchies; Once Again About Cycles; Limitations of the Current Implementation; Summary; Chapter 7: Model; Brief Analysis of the Performance; Model Parallel Execution; Summary; Chapter 8: Row Pattern Matching: match_recognize; Summary; Chapter 9: Logical Execution Order of Query Clauses; Summary; Chapter 10: Turing Completeness; Summary; Part II: PL/SQL and SQL solutions. | |
| 505 | 8 | |a Chapter 11: When PL/SQL Is Better Than Vanilla SQLSpecifics of Analytic Functions; Fetch Termination; Avoiding Multiple Sorts; Iterative-Like Computations; When There Is No Effective Built-In Access Method; Problems of a Combinatorial Nature; Specifics of Joins and Subqueries; Specifics of Joins; Limitations of the Subqueries; Summary; Chapter 12: Solving SQL Quizzes; Converting into Decimal Numeral System; Solution; Connected Components; Solution; Ordering Dependencies; Solution; Percentile with Shift; Solution; N Consequent 1s; Solution; Next Value; Solution; Next Branch; Solution. | |
| 505 | 8 | |a Random SubsetSolution; Covering Ranges; Solution; Zeckendorf Representation; Solution; Top Paths; Solution; Resemblance Group; Solution; Baskets; Solution; Longest Increasing Subsequence; Solution; Quine; Solution; Summary; Appendix A: Useful Oracle Links; Index. | |
| 520 | |a 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. | ||
| 590 | |a O'Reilly |b O'Reilly Online Learning: Academic/Public Library Edition | ||
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