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by Susan Douglas, Korry Douglas
PostgreSQL, Second Edition
Copyright
The Real Value in Free Software
About the Authors
Acknowledgments
We Want to Hear from You!
Reader Services
Introduction
General PostgreSQL Use
Introduction to PostgreSQL and SQL
A Sample Database
Basic Database Terminology
Prerequisites
Connecting to a Database
Creating Tables
Viewing Table Descriptions
Adding New Records to a Table
Installing the Sample Database
Retrieving Data from the Sample Database
The CASE Expression
Aggregates
Multi-Table Joins
UPDATE
DELETE
A (Very) Short Introduction to Transaction Processing
Creating New Tables Using CREATE TABLE...AS
Using VIEW
Summary
Working with Data in PostgreSQL
NULL Values
Character Values
Numeric Values
Date/Time Values
Boolean (Logical) Values
Geometric Data Types
Object IDs (OID)
BLOBs
Network Address Data Types
Sequences
Arrays
Column Constraints
Expression Evaluation and Type Conversion
Creating Your Own Data Types
Summary
PostgreSQL SQL Syntax and Use
PostgreSQL Naming Rules
Creating, Destroying, and Viewing Databases
Creating New Tables
Adding Indexes to a Table
Getting Information About Databases and Tables
Transaction Processing
Summary
Performance
How PostgreSQL Organizes Data
Gathering Performance Information
Understanding How PostgreSQL Executes a Query
Execution Plans Generated by the Planner
The ARC Buffer Manager
Table Statistics
Performance Tips
Programming with PostgreSQL
Introduction to PostgreSQL Programming
Server-Side Programming
Client-Side APIs
General Structure of Client Applications
Choosing an Application Environment
Summary
Extending PostgreSQL
Extending the PostgreSQL Server with Custom Functions
Returning Multiple Values from an Extension Function
The PostgreSQL SRF Interface
Returning Complete Rows from an Extension Function
Extending the PostgreSQL Server with Custom Data Types
Internal and External Forms
Defining a Simple Data Type in PostgreSQL
Defining the Data Type in C
Defining the Input and Output Functions in C
Defining the Input and Output Functions in PostgreSQL
Defining the Data Type in PostgreSQL
Indexing Custom Data Types
Summary
PL/pgSQL
Installing PL/pgSQL
Language Structure
Function Body
Cursors
Triggers
Polymorphic Functions
PL/pgSQL and Security
Summary
The PostgreSQL C API—libpq
Prerequisites
Client 1—Connecting to the Server
Client 2—Adding Error Checking
Client 3—Simple Processing—PQexec() and PQprint()
Client 4—An Interactive Query Processor
Summary
A Simpler C API—libpgeasy
Prerequisites
Client 1—Connecting to the Server
Client 2—Adding Error Checking
Client 3—Processing Queries
Client 4—An Interactive Query Processor
Summary
The New PostgreSQL C++ API—libpqxx
Prerequisites
Client 1—Connecting to the Server
Client 2—Adding Error Checking
Client 3—Processing Queries
Client 4—Working with transactors
Summary
Embedding SQL Commands in C Programs—ecpg
Prerequisites
Client 1—Connecting to the Server
Client 2—Adding Error Checking
Client 3—Processing SQL Commands
Client 4—An Interactive Query Processor
Summary
Using PostgreSQL from an ODBC Client Application
ODBC Architecture Overview
Prerequisites
Client 1—Connecting to the Server
Client 2—Adding Error Checking
Client 3—Processing Queries
Client 4—An Interactive Query Processor
Summary
Resources
Using PostgreSQL from a Java Client Application
JDBC Architecture Overview
Prerequisites
Client 1—Connecting to the Server
Client 2—Adding Error Checking
Client 3—Processing Queries
Client 4—An Interactive Query Processor
Summary
Using PostgreSQL with Perl
DBI Architecture Overview
Prerequisites
Client 1—Connecting to the Server
Client 2—Adding Error Checking
Client 3—Processing Queries
Client 4—An Interactive Query Processor
Summary
Using PostgreSQL with PHP
PHP Architecture Overview
Prerequisites
Client 1—Connecting to the Server
Client 2—Adding Error Checking
Client 3—Query Processing
Client 4—An Interactive Query Processor
Other Features
Summary
Using PostgreSQL with Tcl and Tcl/Tk
Prerequisites
Client 1—Connecting to the Server
Client 2—Query Processing
Client 3—An Interactive Query Processor
The libpgtcl Large-Object API
Summary
Using PostgreSQL with Python
Python/PostgreSQL Interface Architecture
Prerequisites
Client 1—Connecting to the Server
Client 2—Adding Error Checking
Client 3—Query Processing
Client 4—An Interactive Command Processor
Summary
Npgsql: The .NET Data Provider
Prerequisites
Preparing Visual Studio
Understanding the ADO.NET Class Hierarchy
Creating an Npgsql-enabled VB Project
Client 1—Connecting to the Server
Client 2—An Interactive Query Processor
Client 3—Updating the Database with a DataSet
Client 4—A More Robust Query Processor
Client 5—Using a Typed DataSet
Summary
Other Useful Programming Tools
PL/Java—Writing Stored Procedures in Java
pgcurl—Web-enabling Your PostgreSQL Server
pgbash—Writing PostgreSQL-enabled Shell Scripts
PostgreSQL Administration
Introduction to PostgreSQL Administration
Security
User Accounts
Backup and Restore
Server Startup and Shutdown
Running PostgreSQL on a Windows Host
Tuning
Installing Updates
Localization
Summary
PostgreSQL Administration
Roadmap (Where's All My Stuff?)
Installing PostgreSQL
Managing Databases
The PostgreSQL BGWRITER Process
Managing User Accounts
Configuring Your PostgreSQL Runtime Environment
Arranging for PostgreSQL Startup and Shutdown
Backing Up and Copying Databases
Point-in-time Recovery
Summary
Internationalization and Localization
Locale Support
Multi-Byte Character Sets
Summary
Security
Securing the PostgreSQL Data Files
Securing Network Access
Securing Tables
Securing Functions
Summary
Replicating PostgreSQL Data with Slony
Overview
Requirements
Creating a Replication Cluster
Starting the Replication Daemons
Creating a Replication Set
Subscribing to a Replication Set
Changing the Cluster Topology (Re-mastering and Failover)
Summary
Contributed Modules
Exchanging PostgreSQL Data with XML
Using Full-text Search
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