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Table of Contents
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
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Database Systems: The Complete Book, 2nd Edition PDF Manual Solutions , PDF Database Systems: The Complete Book, 2nd Edition , Fast Download Database Systems: The Complete Book, 2nd Edition , Hector Garcia-Molina Jeffrey D. Ullman Jennifer Widom,Category : Higher Education
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