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Mastering Oracle SQL
Mastering Oracle SQL, 2nd Edition
Preface
Why We Wrote This Book
What's New in Oracle SQL?
Objectives of This Book
Audience for This Book
Platform and Version
Structure of This Book
Conventions Used in This Book
Using Code Examples
Comments and Questions
Acknowledgments
Chapter 1. Introduction to SQL
1.1 What Is SQL?
1.2 A Brief History of SQL
1.3 A Simple Database
1.4 DML Statements
1.5 So Why Are There 17 More Chapters?
Chapter 2. The WHERE Clause
2.1 Life Without WHERE
2.2 WHERE to the Rescue
2.3 WHERE Clause Evaluation
2.4 Conditions and Expressions
2.5 WHERE to Go from Here
Chapter 3. Joins
3.1 What Is a Join Query?
3.2 Join Conditions
3.3 Types of Joins
3.4 Joins and Subqueries
3.5 DML Statements on a Join View
Chapter 4. Group Operations
4.1 Aggregate Functions
4.2 The GROUP BY Clause
4.3 The HAVING Clause
4.4 Nested Group Operations
Chapter 5. Subqueries
5.1 What Is a Subquery?
5.2 Noncorrelated Subqueries
5.3 Correlated Subqueries
5.4 Inline Views
5.5 Subquery Case Study: The Top N Performers
Chapter 6. Handling Temporal Data
6.1 Time Zones
6.2 Temporal Data Types in Oracle
6.3 Literals of Temporal Types
6.4 Getting Temporal Data In and Out of a Database
6.5 Date and Time Formats
6.6 Manipulating Temporal Data
Chapter 7. Set Operations
7.1 Set Operators
7.2 Precedence of Set Operators
7.3 Comparing Two Tables
7.4 Using NULLs in Compound Queries
7.5 Rules and Restrictions on Set Operations
Chapter 8. Hierarchical Queries
8.1 Representing Hierarchical Information
8.2 Simple Hierarchy Operations
8.3 Oracle SQL Extensions
8.4 Complex Hierarchy Operations
8.5 Restrictions on Hierarchical Queries
8.6 Enhancements in Oracle Database 10g
Chapter 9. DECODE and CASE
9.1 DECODE, NULLIF, NVL, and NVL2
9.2 The Case for CASE
9.3 DECODE and CASE Examples
Chapter 10. Partitioning
10.1 Partitioning Concepts
10.2 Partitioning Tables
10.3 Partitioning Indexes
10.4 Partitioning Methods
10.5 Specifying Partitions
10.6 Partition Pruning
Chapter 11. PL/SQL
11.1 What Is PL/SQL?
11.2 Procedures, Functions, and Packages
11.3 Calling Stored Functions from Queries
11.4 Restrictions on Calling PL/SQL from SQL
11.5 Stored Functions in DML Statements
11.6 The SQL Inside Your PL/SQL
Chapter 12. Objects and Collections
12.1 Object Types
12.2 Collection Types
12.3 Collection Instantiation
12.4 Querying Collections
12.5 Collection Unnesting
12.6 Collection Functions
12.7 Comparing Collections
12.8 Manipulating Collections
12.9 Multilevel Collections
Chapter 13. Advanced Group Operations
13.1 Multiple Summary Levels
13.2 Pushing the GROUPING Envelope
13.3 The GROUPING_ID and GROUP_ID Functions
Chapter 14. Advanced Analytic SQL
14.1 Analytic SQL Overview
14.2 Ranking Functions
14.3 Windowing Functions
14.4 Reporting Functions
14.5 Summary
Chapter 15. SQL Best Practices
15.1 Know When to Use Specific Constructs
15.2 Avoid Unnecessary Parsing
15.3 Consider Literal SQL for Decision-Support Systems
Chapter 16. XML
16.1 What Is XML?
16.2 Storing XML Data
16.3 Generating XML Documents
16.4 Summary
Chapter 17. Regular Expressions
17.1 Elementary Regular Expression Syntax
17.2 Advanced Function Options
17.3 Advanced Regular Expression Syntax
Chapter 18. Model Queries
18.1 Basic Elements of a Model Query
18.2 Cell References
18.3 Rules
18.4 Iterative Models
18.5 Reference Models
Appendix A. Oracle's Old Join Syntax
A.1 Old Inner Join Syntax
A.2 Old Outer Join Syntax
A.3 Advantages of the New Join Syntax
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