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<!DOCTYPE Book PUBLIC "-//OASIS//DTD DocBook V4.1//EN" [
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<!ENTITY libdbi-reference SYSTEM "libdbi-reference.sgml">
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<!ENTITY libdbi-quickstart SYSTEM "libdbi-quickstart.sgml">
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<!ENTITY example-program SYSTEM "example-program.sgml">
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<!ENTITY freedoc-license SYSTEM "include/copying-fdl.sgml">
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<!ENTITY www '<ULink url="http://libdbi.sourceforge.net">http://libdbi.sourceforge.net</ULink>'>
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<Book id="programmers-guide">
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<Title>Database Independent Abstraction Layer for C</Title>
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<SubTitle>libdbi Programmer's Guide</SubTitle>
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<Firstname>David</Firstname>
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<Othername>A.</Othername>
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<Surname>Parker</Surname>
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<OrgName>Neon Goat Productions</OrgName>
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<Address><EMail>david@neongoat.com</EMail></Address>
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<firstname>Markus</firstname>
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<surname>Hoenicka</surname>
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<address format="linespecific"><email>markus@mhoenicka.de</email></address>
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<Edition>Document revision: $Id: programmers-guide.sgml,v 1.12 2006/05/19 21:44:46 mhoenicka Exp $</Edition>
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<PubDate>$Date: 2006/05/19 21:44:46 $</PubDate>
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<Year>2001-2006</Year>
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<Holder>David Parker, Neon Goat Productions</Holder>
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Permission is granted to copy, distribute and/or modify this
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document under the terms of the <Link linkend="copying-FDL">
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<CiteTitle>GNU Free Documentation License</CiteTitle></Link>,
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Version 1.1 or any later version published by the Free Software
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Foundation; with no Invariant Sections, with no Front-Cover Texts,
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and with no Back-Cover Texts. A copy of the license is included in
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<XRef linkend="copying-FDL">.
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libdbi implements a database-independent abstraction layer in C,
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similar to the DBI/DBD layer in Perl. Writing one generic set of code,
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programmers can leverage the power of multiple databases and multiple
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simultaneous database connections by using this framework.
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<Chapter id="intro"><Title>Introduction</Title>
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<Section id="description"><Title>Description</Title>
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libdbi provides application developers with a database independent abstraction
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layer for C. It handles the database-specific implementations for each type of
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database, so that you can use the same exact code with any type of database server
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that libdbi supports. You can initiate and use multiple database connections
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simultaneously, regardless of the types of database servers you are connecting to.
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The driver architecture allows for new database drivers to be easily added
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<Section id="terminology"><Title>libdbi Concepts and Terminology</Title>
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In this guide, the terms <Quote>user</Quote> and <Quote>programmer</Quote> are used
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interchangably, since the target audience is the software developer using libdbi in
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his program. The libdbi architecture provides serveral <Quote>drivers</Quote>, one
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for each type of database server. All drivers are loaded into memory upon libdbi
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initiallization and are made available to the programmer. Once a driver is
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<Emphasis>instantiated</Emphasis>, it represents a distinct database session and is
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called a <Quote>connection</Quote>. Multiple connections may exist for a single driver, and
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all will function independently of each other. A star character (*) represents a
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wildcard matching any letters. For example, <Quote>dbi_conn_*</Quote> would
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represent all functions beginning with <Quote>dbi_conn_</Quote>.
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<Section id="gnugpl"><Title>Modifications and redistribution of libdbi</Title>
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libdbi is Copyright © 2001-2005, David Parker and Mark Tobenkin.
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libdbi is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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<Section id="contact"><Title>Contact Info</Title>
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Please email us with any bugs, ideas, feature requests, or questions. The libdbi
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website has the latest version of this documentation and the libdbi software, as
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well as a central database of third-party drivers.
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<ListItem><Para>&www;</Para></ListItem>
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<ListItem><Para>David Parker <EMail>david@neongoat.com</EMail></Para></ListItem>
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<ListItem><Para>Mark Tobenkin <EMail>mark@brentwoodradio.com</EMail></Para></ListItem>
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<ListItem><Para>Markus Hoenicka <EMail>markus@mhoenicka.de</EMail></Para></ListItem>
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<Chapter id="quickstart"><Title>libdbi in a Nutshell (Quickstart Guide)</Title>
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