Database systems : the complete book
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書誌事項
Database systems : the complete book
（Pearson international edition）
Pearson/Prentice Hall, c2009
2nd ed
- : pbk
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注記
Previous ed.: 2002
Includes bibliographical references and index
"Pearson Education International"
内容説明・目次
内容説明
Database Systems: The Complete Book is ideal for Database Systems and Database Design and Application courses offered at the junior, senior and graduate levels in Computer Science departments. A basic understanding of algebraic expressions and laws, logic, basic data structure, OOP concepts, and programming environments is implied.
Written by well-known computer scientists, this introduction to database systems offers a comprehensive approach, focusing on database design, database use, and implementation of database applications and database management systems.
The first half of the book provides in-depth coverage of databases from the point of view of the database designer, user, and application programmer. It covers the latest database standards SQL:1999, SQL/PSM, SQL/CLI, JDBC, ODL, and XML, with broader coverage of SQL than most other texts. The second half of the book provides in-depth coverage of databases from the point of view of the DBMS implementor. It focuses on storage structures, query processing, and transaction management. The book covers the main techniques in these areas with broader coverage of query optimization than most other texts, along with advanced topics including multidimensional and bitmap indexes, distributed transactions, and information integration techniques.
目次
TABLE OF CONTENTS
1 The Worlds of Database Systems
1.1 The Evolution of Database Systems
1.1.1 Early Database Management Systems
1.1.2 Relational Database Systems
1.1.3 Smaller and Smaller Systems
1.1.4 Bigger and Bigger Systems
1.1.5 Information Integration
1.2 Overview of a Database Management System
1.2.1 Data-Definition Language Commands
1.2.2 Overview of Query Processing
1.2.3 Storage and Buffer Management
1.2.4 Transaction Processing
1.2.5 The Query Processor
1.3 Outline of Database-System Studies
1.4 References for Chapter 1
PART I: Relational Database Modeling
2 The Relational Model of Data
2.1 An Overview of Data Models
2.1.1 What is a Data Model?
2.1.2 Important Data Models
2.1.3 The Relational Model in Brief
2.1.4 The Semistructured Model in Brief
2.1.5 Other Data Models
2.1.6 Comparison of Modeling Approaches
2.2 Basics of the Relational Model
2.2.1 Attributes
2.2.2 Schemas
2.2.3 Tuples
2.2.4 Domains
2.2.5 Equivalent Representations of a Relation
2.2.6 Relation Instances
2.2.7 Keys of Relations
2.2.8 An Example Database Schema
2.2.9 Exercises for Section 2.2
2.3 Defining a Relation Schema in SQL
2.3.1 Relations in SQL
2.3.2 Data Types
2.3.3 Simple Table Declarations
2.3.4 Modifying Relation Schemas
2.3.5 Default Values
2.3.6 Declaring Keys
2.3.7 Exercises for Section 2.3
2.4 An Algebraic Query Language
2.4.1 Why Do We Need a Special Query Language?
2.4.2 What is an Algebra?
2.4.3 Overview of Relational Algebra
2.4.4 Set Operations on Relations
2.4.5 Projection
2.4.6 Selection
2.4.7 Cartesian Product
2.4.8 Natural Joins
2.4.9 Theta-Joins
2.4.10 Combining Operations to Form Queries
2.4.11 Naming and Renaming
2.4.12 Relationships Among Operations
2.4.13 A Linear Notation for Algebraic Expressions
2.4.14 Exercises for Section 2.4
2.5 Constraints on Relations
2.5.1 Relational Algebra as a Constraint Language
2.5.2 Referential Integrity Constraints
2.5.3 Key Constraints
2.5.4 Additional Constraint Examples
2.5.5 Exercises for Section 2.5
2.6 Summary of Chapter 2
2.7 References for Chapter 2
3 Design Theory for Relational Databases
3.1 Functional Dependencies
3.1.1 Definition of Functional Dependency
3.1.2 Keys of Relations
3.1.3 Superkeys
3.1.4 Exercises for Section 3.1
3.2 Rules About Functional Dependencies
3.2.1 Reasoning About Functional Dependencies
3.2.2 The Splitting/Combining Rule
3.2.3 Trivial Functional Dependencies
3.2.4 Computing the Closure of Attributes
3.2.5 Why the Closure Algorithm Works
3.2.6 The Transitive Rule
3.2.7 Closing Sets of Functional Dependencies
3.2.8 Projecting Functional Dependencies
3.2.9 Exercises for Section 3.2
3.3 Design of Relational Database Schemas
3.3.1 Anomalies
3.3.2 Decomposing Relations
3.3.3 Boyce-Codd Normal Form
3.3.4 Decomposition into BCNF
3.3.5 Exercises for Section 3.3
3.4 Decomposition: The Good, Bad, and Ugly
3.4.1 Recovering Information from a Decomposition
3.4.2 The Chase Test for Lossless Join
3.4.3 Why the Chase Works
3.4.4 Dependency Preservation
3.4.5 Exercises for Section 3.4
3.5 Third Normal Form
3.5.1 Definition of Third Normal Form
3.5.2 The Synthesis Algorithm for 3NF Schemas
3.5.3 Why the 3NF Synthesis Algorithm Works
3.5.4 Exercises for Section 3.5
3.6 Multivalued Dependencies
3.6.1 Attribute Independence and Its Consequent Redundancy
3.6.2 Definition of Multivalued Dependencies
3.6.3 Reasoning About Multivalued Dependencies
3.6.4 Fourth Normal Form
3.6.5 Decomposition into Fourth Normal Form
3.6.6 Relationships Among Normal Forms
3.6.7 Exercises for Section 3.6
3.7 An Algorithm for Discovering MVD's
3.7.1 The Closure and the Chase
3.7.2 Extending the Chase to MVD's
3.7.3 Why the Chase Works for MVD's
3.7.4 Projecting MVD's
3.7.5 Exercises for Section 3.7
3.8 Summary of Chapter 3
3.9 References for Chapter 3
4 High-Level Database Models
4.1 The Entity/Relationship Model
4.1.1 Entity Sets
4.1.2 Attributes
4.1.3 Relationships
4.1.4 Entity-Relationship Diagrams
4.1.5 Instances of an E/R Diagram
4.1.6 Multiplicity of Binary E/R Relationships
4.1.7 Multiway Relationships
4.1.8 Roles in Relationships
4.1.9 Attributes on Relationships
4.1.10 Converting Multiway Relationships to Binary
4.1.11 Subclasses in the E/R Model
4.1.12 Exercises for Section 4.1
4.2 Design Principles
4.2.1 Faithfulness
4.2.2 Avoiding Redundancy
4.2.3 Simplicity Counts
4.2.4 Choosing the Right Relationships
4.2.5 Picking the Right Kind of Element
4.2.6 Exercises for Section 4.2
4.3 Constraints in the E/R Model
4.3.1 Keys in the E/R Model
4.3.2 Representing Keys in the E/R Model
4.3.3 Referential Integrity
4.3.4 Degree Constraints
4.3.5 Exercises for Section 4.3
4.4 Weak Entity Sets
4.4.1 Causes of Weak Entity Sets
4.4.2 Requirements for Weak Entity Sets
4.4.3 Weak Entity Set Notation
4.4.4 Exercises for Section 4.4
4.5 From E/R Diagrams to Relational Designs
4.5.1 From Entity Sets to Relations
4.5.2 From E/R Relationships to Relations
4.5.3 Combining Relations
4.5.4 Handling Weak Entity Sets
4.5.5 Exercises for Section 4.5
4.6 Converting Subclass Structures to Relations
4.6.1 E/R-Style Conversion
4.6.2 An Object-Oriented Approach
4.6.3 Using Null Values to Combine Relations
4.6.4 Comparison of Approaches
4.6.5 Exercises for Section 4.6
4.7 Unified Modeling Language
4.7.1 UML Classes
4.7.2 Keys for UML classes
4.7.3 Associations
4.7.4 Self-Associations
4.7.5 Association Classes
4.7.6 Subclasses in UML
4.7.7 Aggregations and Compositions
4.7.8 Exercises for Section 4.7
4.8 From UML Diagrams to Relations
4.8.1 UML-to-Relations Basics
4.8.2 From UML Subclasses to Relations
4.8.3 From Aggregations and Compositions to Relations
4.8.4 The UML Analog of Weak Entity Sets
4.8.5 Exercises for Section 4.8
4.9 Object Definition Language
4.9.1 Class Declarations
4.9.2 Attributes in ODL
4.9.3 Relationships in ODL
4.9.4 Inverse Relationships
4.9.5 Multiplicity of Relationships
4.9.6 Types in ODL
4.9.7 Subclasses in ODL
4.9.8 Declaring Keys in ODL
4.9.9 Exercises for Section 4.9
4.10 From ODL Designs to Relational Designs
4.10.1 From ODL Classes to Relations
4.10.2 Complex Attributes in Classes
4.10.3 Representing Set-Valued Attributes
4.10.4 Representing Other Type Constructors
4.10.5 Representing ODL Relationships
4.10.6 Exercises for Section 4.10
4.11 Summary of Chapter 4
4.12 References for Chapter 4
PART II: Relational Database Programming
5 Algebraic and Logical Query Languages
5.1 Relational Operations on Bags
5.1.1 Why Bags?
5.1.2 Union, Intersection, and Difference of Bags
5.1.3 Projection of Bags
5.1.4 Selection on Bags
5.1.5 Product of Bags
5.1.6 Joins of Bags
5.1.7 Exercises for Section 5.1
5.2 Extended Operators of Relational Algebra
5.2.1 Duplicate Elimination
5.2.2 Aggregation Operators
5.2.3 Grouping
5.2.4 The Grouping Operator
5.2.5 Extending the Projection Operator
5.2.6 The Sorting Operator
5.2.7 Outerjoins
5.2.8 Exercises for Section 5.2
5.3 A Logic for Relations
5.3.1 Predicates and Atoms
5.3.2 Arithmetic Atoms
5.3.3 Datalog Rules and Queries
5.3.4 Meaning of Datalog Rules
5.3.5 Extensional and Intensional Predicates
5.3.6 Datalog Rules Applied to Bags
5.3.7 Exercises for Section 5.3
5.4 Relational Algebra and Datalog
5.4.1 Boolean Operations
5.4.2 Projection
5.4.3 Selection
5.4.4 Product
5.4.5 Joins
5.4.6 Simulating Multiple Operations with Datalog
5.4.7 Comparison Between Datalog and Relational Algebra
5.4.8 Exercises for Section 5.4
5.5 Summary of Chapter 5
5.6 References for Chapter 5
6 The Database Language SQL
6.1 Simple Queries in SQL
6.1.1 Projection in SQL
6.1.2 Selection in SQL
6.1.3 Comparison of Strings
6.1.4 Pattern Matching in SQL
6.1.5 Dates and Times
6.1.6 Null Values and Comparisons Involving {\tt NULL}
6.1.7 The Truth-Value {\tt UNKNOWN}
6.1.8 Ordering the Output
6.1.9 Exercises for Section 6.1
6.2 Queries Involving More Than One Relation
6.2.1 Products and Joins in SQL
6.2.2 Disambiguating Attributes
6.2.3 Tuple Variables
6.2.4 Interpreting Multirelation Queries
6.2.5 Union, Intersection, and Difference of Queries
6.2.6 Exercises for Section 6.2
6.3 Subqueries
6.3.1 Subqueries that Produce Scalar Values
6.3.2 Conditions Involving Relations
6.3.3 Conditions Involving Tuples
6.3.4 Correlated Subqueries
6.3.5 Subqueries in {\tt FROM}\ Clauses
6.3.6 SQL Join Expressions
6.3.7 Natural Joins
6.3.8 Outerjoins
6.3.9 Exercises for Section 6.3
6.4 Full-Relation Operations
6.4.1 Eliminating Duplicates
6.4.2 Duplicates in Unions, Intersections, and Differences
6.4.3 Grouping and Aggregation in SQL
6.4.4 Aggregation Operators
6.4.5 Grouping
6.4.6 Grouping, Aggregation, and Nulls
6.4.7 {\tt HAVING} Clauses
6.4.8 Exercises for Section 6.4
6.5 Database Modifications
6.5.1 Insertion
6.5.2 Deletion
6.5.3 Updates
6.5.4 Exercises for Section 6.5
6.6 Transactions in SQL
6.6.1 Serializability
6.6.2 Atomicity
6.6.3 Transactions
6.6.4 Read-Only Transactions
6.6.5 Dirty Reads
6.6.6 Other Isolation Levels
6.6.7 Exercises for Section 6.6
6.7 Summary of Chapter 6
6.8 References for Chapter 6
7 Constraints and Triggers
7.1 Keys and Foreign Keys
7.1.1 Declaring Foreign-Key Constraints
7.1.2 Maintaining Referential Integrity
7.1.3 Deferred Checking of Constraints
7.1.4 Exercises for Section 7.1
7.2 Constraints on Attributes and Tuples
7.2.1 Not-Null Constraints
7.2.2 Attribute-Based {\tt CHECK} Constraints
7.2.3 Tuple-Based {\tt CHECK} Constraints
7.2.4 Comparison of Tuple- and Attribute-Based Constraints
7.2.5 Exercises for Section 7.2
7.3 Modification of Constraints
7.3.1 Giving Names to Constraints
7.3.2 Altering Constraints on Tables
7.3.3 Exercises for Section 7.3
7.4 Assertions
7.4.1 Creating Assertions
7.4.2 Using Assertions
7.4.3 Exercises for Section 7.4
7.5 Triggers
7.5.1 Triggers in SQL
7.5.2 The Options for Trigger Design
7.5.3 Exercises for Section 7.5
7.6 Summary of Chapter 7
7.7 References for Chapter 7
8 Views and Indexes
8.1 Virtual Views
8.1.1 Declaring Views
8.1.2 Querying Views
8.1.3 Renaming Attributes
8.1.4 Exercises for Section 8.1
8.2 Modifying Views
8.2.1 View Removal
8.2.2 Updatable Views
8.2.3 Instead-Of Triggers on Views
8.2.4 Exercises for Section 8.2
8.3 Indexes in SQL
8.3.1 Motivation for Indexes
8.3.2 Declaring Indexes
8.3.3 Exercises for Section 8.3
8.4 Selection of Indexes
8.4.1 A Simple Cost Model
8.4.2 Some Useful Indexes
8.4.3 Calculating the Best Indexes to Create
8.4.4 Automatic Selection of Indexes to Create
8.4.5 Exercises for Section 8.4
8.5 Materialized Views
8.5.1 Maintaining a Materialized View
8.5.2 Periodic Maintenance of Materialized Views
8.5.3 Rewriting Queries to Use Materialized Views
8.5.4 Automatic Creation of Materialized Views
8.5.5 Exercises for Section 8.5
8.6 Summary of Chapter 8
8.7 References for Chapter 8
9 SQL in a Server Environment
9.1 The Three-Tier Architecture
9.1.1 The Web-Server Tier
9.1.2 The Application Tier
9.1.3 The Database Tier
9.2 The SQL Environment
9.2.1 Environments
9.2.2 Schemas
9.2.3 Catalogs
9.2.4 Clients and Servers in the SQL Environment
9.2.5 Connections
9.2.6 Sessions
9.2.7 Modules
9.3 The SQL/Host-Language Interface
9.3.1 The Impedance Mismatch Problem
9.3.2 Connecting SQL to the Host Language
9.3.3 The {\tt DECLARE} Section
9.3.4 Using Shared Variables
9.3.5 Single-Row Select Statements
9.3.6 Cursors
9.3.7 Modifications by Cursor
9.3.8 Protecting Against Concurrent Updates
9.3.9 Dynamic SQL
9.3.10 Exercises for Section 9.3
9.4 Stored Procedures
9.4.1 Creating PSM Functions and Procedures
9.4.2 Some Simple Statement Forms in PSM
9.4.3 Branching Statements
9.4.4 Queries in PSM
9.4.5 Loops in PSM
9.4.6 For-Loops
9.4.7 Exceptions in PSM
9.4.8 Using PSM Functions and Procedures
9.4.9 Exercises for Section 9.4
9.5 Using a Call-Level Interface
9.5.1 Introduction to SQL/CLI
9.5.2 Processing Statements
9.5.3 Fetching Data From a Query Result
9.5.4 Passing Parameters to Queries
9.5.5 Exercises for Section 9.5
9.6 JDBC
9.6.1 Introduction to JDBC
9.6.2 Creating Statements in JDBC
9.6.3 Cursor Operations in JDBC
9.6.4 Parameter Passing
9.6.5 Exercises for Section 9.6
9.7 PHP
9.7.1 PHP Basics
9.7.2 Arrays
9.7.3 The PEAR DB Library
9.7.4 Creating a Database Connection Using DB
9.7.5 Executing SQL Statements
9.7.6 Cursor Operations in PHP
9.7.7 Dynamic SQL in PHP
9.7.8 Exercises for Section 9.7
9.8 Summary of Chapter 9
9.9 References for Chapter 9
10 Advanced Topics in Relational Databases
10.1 Security and User Authorization in SQL
10.1.1 Privileges
10.1.2 Creating Privileges
10.1.3 The Privilege-Checking Process
10.1.4 Granting Privileges
10.1.5 Grant Diagrams
10.1.6 Revoking Privileges
10.1.7 Exercises for Section 10.1
10.2 Recursion in SQL
10.2.1 Defining Recursive Relations in SQL
10.2.2 Problematic Expressions in Recursive SQL
10.2.3 Exercises for Section 10.2
10.3 The Object-Relational Model
10.3.1 From Relations to Object-Relations
10.3.2 Nested Relations
10.3.3 References
10.3.4 Object-Oriented Versus Object-Relational
10.3.5 Exercises for Section 10.3
10.4 User-Defined Types in SQL
10.4.1 Defining Types in SQL
10.4.2 Method Declarations in UDT's
10.4.3 Method Definitions
10.4.4 Declaring Relations with a UDT
10.4.5 References
10.4.6 Creating Object ID's for Tables
10.4.7 Exercises for Section 10.4
10.5 Operations on Object-Relational Data
10.5.1 Following References
10.5.2 Accessing Components of Tuples with a UDT
10.5.3 Generator and Mutator Functions
10.5.4 Ordering Relationships on UDT's
10.5.5 Exercises for Section 10.5
10.6 On-Line Analytic Processing
10.6.1 OLAP and Data Warehouses
10.6.2 OLAP Applications
10.6.3 A Multidimensional View of OLAP Data
10.6.4 Star Schemas
10.6.5 Slicing and Dicing
10.6.6 Exercises for Section 10.6
10.7 Data Cubes
10.7.1 The Cube Operator
10.7.2 The Cube Operator in SQL
10.7.3 Exercises for Section 10.7
10.8 Summary of Chapter 10
10.9 References for Chapter 10
PART III: Modeling and Programming for Semistructured Data
11 The Semistructured-Data Model
11.1 Semistructured Data
11.1.1 Motivation for the Semistructured-Data Model
11.1.2 Semistructured Data Representation
11.1.3 Information Integration Via Semistructured Data
11.1.4 Exercises for Section 11.1
11.2 XML
11.2.1 Semantic Tags
11.2.2 XML With and Without a Schema
11.2.3 Well-Formed XML
11.2.4 Attributes
11.2.5 Attributes That Connect Elements
11.2.6 Namespaces
11.2.7 XML and Databases
11.2.8 Exercises for Section 11.2
11.3 Document Type Definitions
11.3.1 The Form of a DTD
11.3.2 Using a DTD
11.3.3 Attribute Lists
11.3.4 Identifiers and References
11.3.5 Exercises for Section 11.3
11.4 XML Schema
11.4.1 The Form of an XML Schema
11.4.2 Elements
11.4.3 Complex Types
11.4.4 Attributes
11.4.5 Restricted Simple Types
11.4.6 Keys in XML Schema
11.4.7 Foreign Keys in XML Schema
11.4.8 Exercises for Section 11.4
11.5 Summary of Chapter 11
11.6 References for Chapter 11
12 Programming Languages for XML
12.1 XPath
12.1.1 The XPath Data Model
12.1.2 Document Nodes
12.1.3 Path Expressions
12.1.4 Relative Path Expressions
12.1.5 Attributes in Path Expressions
12.1.6 Axes
12.1.7 Context of Expressions
12.1.8 Wildcards
12.1.9 Conditions in Path Expressions
12.1.10 Exercises for Section 12.1
12.2 XQuery
12.2.1 XQuery Basics
12.2.2 FLWR Expressions
12.2.3 Replacement of Variables by Their Values
12.2.4 Joins in XQuery
12.2.5 XQuery Comparison Operators
12.2.6 Elimination of Duplicates
12.2.7 Quantification in XQuery
12.2.8 Aggregations
12.2.9 Branching in XQuery Expressions
12.2.10 Ordering the Result of a Query
12.2.11 Exercises for Section 12.2
12.3 Extensible Stylesheet Language
12.3.1 XSLT Basics
12.3.2 Templates
12.3.3 Obtaining Values From XML Data
12.3.4 Recursive Use of Templates
12.3.5 Iteration in XSLT
12.3.6 Conditionals in XSLT
12.3.7 Exercises for Section 12.3
12.4 Summary of Chapter 12
12.5 References for Chapter 12
PART IV: Database System Implementation
13 Secondary Storage Management
13.1 The Memory Hierarchy
13.1.1 The Memory Hierarchy
13.1.2 Transfer of Data Between Levels
13.1.3 Volatile and Nonvolatile Storage
13.1.4 Virtual Memory
13.1.5 Exercises for Section 13.1
13.2 Disks
13.2.1 Mechanics of Disks
13.2.2 The Disk Controller
13.2.3 Disk Access Characteristics
13.2.4 Exercises for Section 13.2
13.3 Accelerating Access to Secondary Storage
13.3.1 The I/O Model of Computation
13.3.2 Organizing Data by Cylinders
13.3.3 Using Multiple Disks
13.3.4 Mirroring Disks
13.3.5 Disk Scheduling and the Elevator Algorithm
13.3.6 Prefetching and Large-Scale Buffering
13.3.7 Exercises for Section 13.3
13.4 Disk Failures
13.4.1 Intermittent Failures
13.4.2 Checksums
13.4.3 Stable Storage
13.4.4 Error-Handling Capabilities of Stable Storage
13.4.5 Recovery from Disk Crashes
13.4.6 Mirroring as a Redundancy Technique
13.4.7 Parity Blocks
13.4.8 An Improvement: RAID 5
13.4.9 Coping With Multiple Disk Crashes
13.4.10 Exercises for Section 13.4
13.5 Arranging Data on Disk
13.5.1 Fixed-Length Records
13.5.2 Packing Fixed-Length Records into Blocks
13.5.3 Exercises for Section 13.5
13.6 Representing Block and Record Addresses
13.6.1 Addresses in Client-Server Systems
13.6.2 Logical and Structured Addresses
13.6.3 Pointer Swizzling
13.6.4 Returning Blocks to Disk
13.6.5 Pinned Records and Blocks
13.6.6 Exercises for Section 13.6
13.7 Variable-Length Data and Records
13.7.1 Records With Variable-Length Fields
13.7.2 Records With Repeating Fields
13.7.3 Variable-Format Records
13.7.4 Records That Do Not Fit in a Block
13.7.5 BLOBs
13.7.6 Column Stores
13.7.7 Exercises for Section 13.7
13.8 Record Modifications
13.8.1 Insertion
13.8.2 Deletion
13.8.3 Update
13.8.4 Exercises for Section 13.8
13.9 Summary of Chapter 13
13.10 References for Chapter 13
14 Index Structures
14.1 Index-Structure Basics
14.1.1 Sequential Files
14.1.2 Dense Indexes
14.1.3 Sparse Indexes
14.1.4 Multiple Levels of Index
14.1.5 Secondary Indexes
14.1.6 Applications of Secondary Indexes
14.1.7 Indirection in Secondary Indexes
14.1.8 Document Retrieval and Inverted Indexes
14.1.9 Exercises for Section 14.1
14.2 B-Trees
14.2.1 The Structure of B-trees
14.2.2 Applications of B-trees
14.2.3 Lookup in B-Trees
14.2.4 Range Queries
14.2.5 Insertion Into B-Trees
14.2.6 Deletion From B-Trees
14.2.7 Efficiency of B-Trees
14.2.8 Exercises for Section 14.2
14.3 Hash Tables
14.3.1 Secondary-Storage Hash Tables
14.3.2 Insertion Into a Hash Table
14.3.3 Hash-Table Deletion
14.3.4 Efficiency of Hash Table Indexes
14.3.5 Extensible Hash Tables
14.3.6 Insertion Into Extensible Hash Tables
14.3.7 Linear Hash Tables
14.3.8 Insertion Into Linear Hash Tables
14.3.9 Exercises for Section 14.3
14.4 Multidimensional Indexes
14.4.1 Applications of Multidimensional Indexes
14.4.2 Executing Range Queries Using Conventional Indexes
14.4.3 Executing Nearest-Neighbor Queries Using Conventional Indexes
14.4.4 Overview of Multidimensional Index Structures
14.5 Hash Structures for Multidimensional Data
14.5.1 Grid Files
14.5.2 Lookup in a Grid File
14.5.3 Insertion Into Grid Files
14.5.4 Performance of Grid Files
14.5.5 Partitioned Hash Functions
14.5.6 Comparison of Grid Files and Partitioned Hashing
14.5.7 Exercises for Section 14.5
14.6 Tree Structures for Multidimensional Data
14.6.1 Multiple-Key Indexes
14.6.2 Performance of Multiple-Key Indexes
14.6.3 $kd$-Trees
14.6.4 Operations on $kd$-Trees
14.6.5 Adapting $kd$-Trees to Secondary Storage
14.6.6 Quad Trees
14.6.7 R-Trees
14.6.8 Operations on R-Trees
14.6.9 Exercises for Section 14.6
14.7 Bitmap Indexes
14.7.1 Motivation for Bitmap Indexes
14.7.2 Compressed Bitmaps
14.7.3 Operating on Run-Length-Encoded Bit-Vectors
14.7.4 Managing Bitmap Indexes
14.7.5 Exercises for Section 14.7
14.8 Summary of Chapter 14
14.9 References for Chapter 14
15 Query Execution
15.1 Introduction to Physical-Query-Plan Operators
15.1.1 Scanning Tables
15.1.2 Sorting While Scanning Tables
15.1.3 The Computation Model for Physical Operators
15.1.4 Parameters for Measuring Costs
15.1.5 I/O Cost for Scan Operators
15.1.6 Iterators for Implementation of Physical Operators
15.2 One-Pass Algorithms
15.2.1 One-Pass Algorithms for Tuple-at-a-Time Operations
15.2.2 One-Pass Algorithms for Unary, Full-Relation Operations
15.2.3 One-Pass Algorithms for Binary Operations
15.2.4 Exercises for Section 15.2
15.3 Nested-Loop Joins
15.3.1 Tuple-Based Nested-Loop Join
15.3.2 An Iterator for Tuple-Based Nested-Loop Join
15.3.3 Block-Based Nested-Loop Join Algorithm
15.3.4 Analysis of Nested-Loop Join
15.3.5 Summary of Algorithms so Far
15.3.6 Exercises for Section 15.3
15.4 Two-Pass Algorithms Based on Sorting
15.4.1 Two-Phase, Multiway Merge-Sort
15.4.2 Duplicate Elimination Using Sorting
15.4.3 Grouping and Aggregation Using Sorting
15.4.4 A Sort-Based Union Algorithm
15.4.5 Sort-Based Intersection and Difference
15.4.6 A Simple Sort-Based Join Algorithm
15.4.7 Analysis of Simple Sort-Join
15.4.8 A More Efficient Sort-Based Join
15.4.9 Summary of Sort-Based Algorithms
15.4.10 Exercises for Section 15.4
15.5 Two-Pass Algorithms Based on Hashing
15.5.1 Partitioning Relations by Hashing
15.5.2 A Hash-Based Algorithm for Duplicate Elimination
15.5.3 Hash-Based Grouping and Aggregation
15.5.4 Hash-Based Union, Intersection, and Difference
15.5.5 The Hash-Join Algorithm
15.5.6 Saving Some Disk I/O's
15.5.7 Summary of Hash-Based Algorithms
15.5.8 Exercises for Section 15.5
15.6 Index-Based Algorithms
15.6.1 Clustering and Nonclustering Indexes
15.6.2 Index-Based Selection
15.6.3 Joining by Using an Index
15.6.4 Joins Using a Sorted Index
15.6.5 Exercises for Section 15.6
15.7 Buffer Management
15.7.1 Buffer Management Architecture
15.7.2 Buffer Management Strategies
15.7.3 The Relationship Between Physical Operator Selection and Buffer Management
15.7.4 Exercises for Section 15.7
15.8 Algorithms Using More Than Two Passes
15.8.1 Multipass Sort-Based Algorithms
15.8.2 Performance of Multipass, Sort-Based Algorithms
15.8.3 Multipass Hash-Based Algorithms
15.8.4 Performance of Multipass Hash-Based Algorithms
15.8.5 Exercises for Section 15.8
15.9 Summary of Chapter 15
15.10 References for Chapter 15
16 The Query Compiler
16.1 Parsing and Preprocessing
16.1.1 Syntax Analysis and Parse Trees
16.1.2 A Grammar for a Simple Subset of SQL
16.1.3 The Preprocessor
16.1.4 Preprocessing Queries Involving Views
16.1.5 Exercises for Section 16.1
16.2 Algebraic Laws for Improving Query Plans
16.2.1 Commutative and Associative Laws
16.2.2 Laws Involving Selection
16.2.3 Pushing Selections
16.2.4 Laws Involving Projection
16.2.5 Laws About Joins and Products
16.2.6 Laws Involving Duplicate Elimination
16.2.7 Laws Involving Grouping and Aggregation
16.2.8 Exercises for Section 16.2
16.3 From Parse Trees to Logical Query Plans
16.3.1 Conversion to Relational Algebra
16.3.2 Removing Subqueries From Conditions
16.3.3 Improving the Logical Query Plan
16.3.4 Grouping Associative/Commutative Operators
16.3.5 Exercises for Section 16.3
16.4 Estimating the Cost of Operations
16.4.1 Estimating Sizes of Intermediate Relations
16.4.2 Estimating the Size of a Projection
16.4.3 Estimating the Size of a Selection
16.4.4 Estimating the Size of a Join
16.4.5 Natural Joins With Multiple Join Attributes
16.4.6 Joins of Many Relations
16.4.7 Estimating Sizes for Other Operations
16.4.8 Exercises for Section 16.4
16.5 Introduction to Cost-Based Plan Selection
16.5.1 Obtaining Estimates for Size Parameters
16.5.2 Computation of Statistics
16.5.3 Heuristics for Reducing the Cost of Logical Query Plans
16.5.4 Approaches to Enumerating Physical Plans
16.5.5 Exercises for Section 16.5
16.6 Choosing an Order for Joins
16.6.1 Significance of Left and Right Join Arguments
16.6.2 Join Trees
16.6.3 Left-Deep Join Trees
16.6.4 Dynamic Programming to Select a Join Order and Grouping
16.6.5 Dynamic Programming With More Detailed Cost Functions
16.6.6 A Greedy Algorithm for Selecting a Join Order
16.6.7 Exercises for Section 16.6
16.7 Completing the Physical-Query-Plan
16.7.1 Choosing a Selection Method
16.7.2 Choosing a Join Method
16.7.3 Pipelining Versus Materialization
16.7.4 Pipelining Unary Operations
16.7.5 Pipelining Binary Operations
16.7.6 Notation for Physical Query Plans
16.7.7 Ordering of Physical Operations
16.7.8 Exercises for Section 16.7
16.8 Summary of Chapter 16
16.9 References for Chapter 16
17 Coping With System Failures
17.1 Issues and Models for Resilient Operation
17.1.1 Failure Modes
17.1.2 More About Transactions
17.1.3 Correct Execution of Transactions
17.1.4 The Primitive Operations of Transactions
17.1.5 Exercises for Section 17.1
17.2 Undo Logging
17.2.1 Log Records
17.2.2 The Undo-Logging Rules
17.2.3 Recovery Using Undo Logging
17.2.4 Checkpointing
17.2.5 Nonquiescent Checkpointing
17.2.6 Exercises for Section 17.2
17.3 Redo Logging
17.3.1 The Redo-Logging Rule
17.3.2 Recovery With Redo Logging
17.3.3 Checkpointing a Redo Log
17.3.4 Recovery With a Checkpointed Redo Log
17.3.5 Exercises for Section 17.3
17.4 Undo/Redo Logging
17.4.1 The Undo/Redo Rules
17.4.2 Recovery With Undo/Redo Logging
17.4.3 Checkpointing an Undo/Redo Log
17.4.4 Exercises for Section 17.4
17.5 Protecting Against Media Failures
17.5.1 The Archive
17.5.2 Nonquiescent Archiving
17.5.3 Recovery Using an Archive and Log
17.5.4 Exercises for Section 17.5
17.6 Summary of Chapter 17
17.7 References for Chapter 17
18 Concurrency Control
18.1 Serial and Serializable Schedules
18.1.1 Schedules
18.1.2 Serial Schedules
18.1.3 Serializable Schedules
18.1.4 The Effect of Transaction Semantics
18.1.5 A Notation for Transactions and Schedules
18.1.6 Exercises for Section 18.1
18.2 Conflict-Serializability
18.2.1 Conflicts
18.2.2 Precedence Graphs and a Test for Conflict-Serializability
18.2.3 Why the Precedence-Graph Test Works
18.2.4 Exercises for Section 18.2
18.3 Enforcing Serializability by Locks
18.3.1 Locks
18.3.2 The Locking Scheduler
18.3.3 Two-Phase Locking
18.3.4 Why Two-Phase Locking Works
18.3.5 Exercises for Section 18.3
18.4 Locking Systems With Several Lock Modes
18.4.1 Shared and Exclusive Locks
18.4.2 Compatibility Matrices
18.4.3 Upgrading Locks
18.4.4 Update Locks
18.4.5 Increment Locks
18.4.6 Exercises for Section 18.4
18.5 An Architecture for a Locking Scheduler
18.5.1 A Scheduler That Inserts Lock Actions
18.5.2 The Lock Table
18.5.3 Exercises for Section 18.5
18.6 Hierarchies of Database Elements
18.6.1 Locks With Multiple Granularity
18.6.2 Warning Locks
18.6.3 Phantoms and Handling Insertions Correctly
18.6.4 Exercises for Section 18.6
18.7 The Tree Protocol
18.7.1 Motivation for Tree-Based Locking
18.7.2 Rules for Access to Tree-Structured Data
18.7.3 Why the Tree Protocol Works
18.7.4 Exercises for Section 18.7
18.8 Concurrency Control by Timestamps
18.8.1 Timestamps
18.8.2 Physically Unrealizable Behaviors
18.8.3 Problems With Dirty Data
18.8.4 The Rules for Timestamp-Based Scheduling
18.8.5 Multiversion Timestamps
18.8.6 Timestamps Versus Locking
18.8.7 Exercises for Section 18.8
18.9 Concurrency Control by Validation
18.9.1 Architecture of a Validation-Based Scheduler
18.9.2 The Validation Rules
18.9.3 Comparison of Three Concurrency-Control Mechanisms
18.9.4 Exercises for Section 18.9
18.10 Summary of Chapter 18
18.11 References for Chapter 18
19 More About Transaction Management
19.1 Serializability and Recoverability
19.1.1 The Dirty-Data Problem
19.1.2 Cascading Rollback
19.1.3 Recoverable Schedules
19.1.4 Schedules That Avoid Cascading Rollback
19.1.5 Managing Rollbacks Using Locking
19.1.6 Group Commit
19.1.7 Logical Logging
19.1.8 Recovery From Logical Logs
19.1.9 Exercises for Section 19.1
19.2 Deadlocks
19.2.1 Deadlock Detection by Timeout
19.2.2 The Waits-For Graph
19.2.3 Deadlock Prevention by Ordering Elements
19.2.4 Detecting Deadlocks by Timestamps
19.2.5 Comparison of Deadlock-Management Methods
19.2.6 Exercises for Section 19.2
19.3 Long-Duration Transactions
19.3.1 Problems of Long Transactions
19.3.2 Sagas
19.3.3 Compensating Transactions
19.3.4 Why Compensating Transactions Work
19.3.5 Exercises for Section 19.3
19.4 Summary of Chapter 19
19.5 References for Chapter 19
20 Parallel and Distributed Databases
20.1 Parallel Algorithms on Relations
20.1.1 Models of Parallelism
20.1.2 Tuple-at-a-Time Operations in Parallel
20.1.3 Parallel Algorithms for Full-Relation Operations
20.1.4 Performance of Parallel Algorithms
20.1.5 Exercises for Section 20.1
20.2 The Map-Reduce Parallelism Framework
20.2.1 The Storage Model
20.2.2 The Map Function
20.2.3 The Reduce Function
20.2.4 Exercises for Section 20.2
20.3 Distributed Databases
20.3.1 Distribution of Data
20.3.2 Distributed Transactions
20.3.3 Data Replication
20.3.4 Exercises for Section 20.3
20.4 Distributed Query Processing
20.4.1 The Distributed Join Problem
20.4.2 Semijoin Reductions
20.4.3 Joins of Many Relations
20.4.4 Acyclic Hypergraphs
20.4.5 Full Reducers for Acyclic Hypergraphs
20.4.6 Why the Full-Reducer Algorithm Works
20.4.7 Exercises for Section 20.4
20.5 Distributed Commit
20.5.1 Supporting Distributed Atomicity
20.5.2 Two-Phase Commit
20.5.3 Recovery of Distributed Transactions
20.5.4 Exercises for Section 20.5
20.6 Distributed Locking
20.6.1 Centralized Lock Systems
20.6.2 A Cost Model for Distributed Locking Algorithms
20.6.3 Locking Replicated Elements
20.6.4 Primary-Copy Locking
20.6.5 Global Locks From Local Locks
20.6.6 Exercises for Section 20.6
20.7 Peer-to-Peer Distributed Search
20.7.1 Peer-to-Peer Networks
20.7.2 The Distributed-Hashing Problem
20.7.3 Centralized Solutions for Distributed Hashing
20.7.4 Chord Circles
20.7.5 Links in Chord Circles
20.7.6 Search Using Finger Tables
20.7.7 Adding New Nodes
20.7.8 When a Peer Leaves the Network
20.7.9 When a Peer Fails
20.7.10 Exercises for Section 20.7
20.8 Summary of Chapter 20
20.9 References for Chapter 20
PART V: Other Issues in Management of Massive Data
21 Information Integration
21.1 Introduction to Information Integration
21.1.1 Why Information Integration?
21.1.2 The Heterogeneity Problem
21.2 Modes of Information Integration
21.2.1 Federated Database Systems
21.2.2 Data Warehouses
21.2.3 Mediators
21.2.4 Exercises for Section 21.2
21.3 Wrappers in Mediator-Based Systems
21.3.1 Templates for Query Patterns
21.3.2 Wrapper Generators
21.3.3 Filters
21.3.4 Other Operations at the Wrapper
21.3.5 Exercises for Section 21.3
21.4 Capability-Based Optimization
21.4.1 The Problem of Limited Source Capabilities
21.4.2 A Notation for Describing Source Capabilities
21.4.3 Capability-Based Query-Plan Selection
21.4.4 Adding Cost-Based Optimization
21.4.5 Exercises for Section 21.4
21.5 Optimizing Mediator Queries
21.5.1 Simplified Adornment Notation
21.5.2 Obtaining Answers for Subgoals
21.5.3 The Chain Algorithm
21.5.4 Incorporating Union Views at the Mediator
21.5.5 Exercises for Section 21.5
21.6 Local-as-View Mediators
21.6.1 Motivation for LAV Mediators
21.6.2 Terminology for LAV Mediation
21.6.3 Expanding Solutions
21.6.4 Containment of Conjunctive Queries
21.6.5 Why the Containment-Mapping Test Works
21.6.6 Finding Solutions to a Mediator Query
21.6.7 Why the LMSS Theorem Holds
21.6.8 Exercises for Section 21.6
21.7 Entity Resolution
21.7.1 Deciding Whether Records Represent a Common Entity
21.7.2 Merging Similar Records
21.7.3 Useful Properties of Similarity and Merge Functions
21.7.4 The R-Swoosh Algorithm for ICAR Records
21.7.5 Why R-Swoosh Works
21.7.6 Other Approaches to Entity Resolution
21.7.7 Exercises for Section 21.7
21.8 Summary of Chapter 21
21.9 References for Chapter 21
22 Data Mining
22.1 Frequent-Itemset Mining
22.1.1 The Market-Basket Model
22.1.2 Basic Definitions
22.1.3 Association Rules
22.1.4 The Computation Model for Frequent Itemsets
22.1.5 Exercises for Section 22.1
22.2 Algorithms for Finding Frequent Itemsets
22.2.1 The Distribution of Frequent Itemsets
22.2.2 The Naive Algorithm for Finding Frequent Itemsets
22.2.3 The A-Priori Algorithm
22.2.4 Implementation of the A-Priori Algorithm
22.2.5 Making Better Use of Main Memory
22.2.6 When to Use the PCY Algorithm
22.2.7 The Multistage Algorithm
22.2.8 Exercises for Section 22.2
22.3 Finding Similar Items
22.3.1 The Jaccard Measure of Similarity
22.3.2 Applications of Jaccard Similarity
22.3.3 Minhashing
22.3.4 Minhashing and Jaccard Distance
22.3.5 Why Minhashing Works
22.3.6 Implementing Minhashing
22.3.7 Exercises for Section 22.3
22.4 Locality-Sensitive Hashing
22.4.1 Entity Resolution as an Example of LSH
22.4.2 Locality-Sensitive Hashing of Signatures
22.4.3 Combining Minhashing and Locality-Sensitive Hashing
22.4.4 Exercises for Section 22.4
22.5 Clustering of Large-Scale Data
22.5.1 Applications of Clustering
22.5.2 Distance Measures
22.5.3 Agglomerative Clustering
22.5.4 $k$-Means Algorithms
22.5.5 $k$-Means for Large-Scale Data
22.5.6 Processing a Memory Load of Points
22.5.7 Exercises for Section 22.5
22.6 Summary of Chapter 22
22.7 References for Chapter 22
23 Database Systems and the Internet
23.1 The Architecture of a Search Engine
23.1.1 Components of a Search Engine
23.1.2 Web Crawlers
23.1.3 Query Processing in Search Engines
23.1.4 Ranking Pages
23.2 PageRank for Identifying Important Pages
23.2.1 The Intuition Behind PageRank
23.2.2 Recursive Formulation of PageRank\nobreakspace {}--- First Try
23.2.3 Spider Traps and Dead Ends
23.2.4 PageRank Accounting for Spider Traps and Dead Ends
23.2.5 Exercises for Section 23.2
23.3 Topic-Specific PageRank
23.3.1 Teleport Sets
23.3.2 Calculating A Topic-Specific PageRank
23.3.3 Link Spam
23.3.4 Topic-Specific PageRank and Link Spam
23.3.5 Exercises for Section 23.3
23.4 Data Streams
23.4.1 Data-Stream-Management Systems
23.4.2 Stream Applications
23.4.3 A Data-Stream Data Model
23.4.4 Converting Streams Into Relations
23.4.5 Converting Relations Into Streams
23.4.6 Exercises for Section 23.4
23.5 Data Mining of Streams
23.5.1 Motivation
23.5.2 Counting Bits
23.5.3 Counting the Number of Distinct Elements
23.5.4 Exercises for Section 23.5
23.6 Summary of Chapter 23
23.7 References for Chapter 23
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