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NAME

       Alzabo - A data modelling tool and RDBMS-OO mapper

SYNOPSIS

         Cannot be summarized here.

DESCRIPTION

   What is Alzabo?
       Alzabo is a suite of modules with two core functions.  Its first use is as a data
       modelling tool.  Through either a schema creation GUI, a perl program, or reverse
       engineering, you can create a set objects to represent a schema.

       Its second function is as an RDBMS to object mapping system.  Once you have created a
       schema, you can use the "Alzabo::Runtime::Table" and "Alzabo::Runtime::Row" classes to
       access its data.  These classes offer a high level interface to common operations such as
       SQL "SELECT", "INSERT", "DELETE", and "UPDATE" commands.

       Because you can manipulate construct queries through object-oriented Perl, creating
       complex queries on the fly is much easier than it would be if you had to dynamically
       construct strings of SQL.

       A higher level interface can be created through the use of the "Alzabo::MethodMaker"
       module.  This module takes a schema object and auto-generates useful methods based on the
       tables, columns, and relationships it finds in the module.  The code is generates can be
       integrated with your own code quite easily.

       To take it a step further, you could then aggregate a set of rows from different tables
       into a larger container object which could understand the logical relationship between
       these tables.

   What to Read?
       Alzabo has a lot of documentation.  If you are primarily interested in using Alzabo as an
       RDBMS-OO wrapper, much of the documentation can be skipped.  This assumes that you will
       create your schema via a schema creation GUI or via reverse engineering.

       Here is the suggested reading order:

       Introduction to Alzabo

       The RDBMS-specific documentation:

           Alzabo and MySQL

           Alzabo and PostgreSQL

       The Alzabo::Runtime::Schema docs - The most important parts here are those related to
       loading a schema and connecting to a database.  Also be sure to read about the "join()"
       method.

       The Alzabo::Runtime::Table docs - This contains most of the methods used to fetch rows
       from the database, as well as the "insert()" method.

       The Alzabo::Runtime::Row docs - The row objects contain the methods used to update,
       delete, and retrieve data from the database.

       The Alzabo::Runtime::RowCursor docs - A cursor object that returns only a single row.

       The Alzabo::Runtime::JoinCursor docs - A cursor object that returns multiple rows at once.

       The Alzabo::MethodMaker docs - One of the most useful parts of Alzabo.  This module can be
       used to auto-generate methods based on the structure of your schema.

       The Alzabo::Runtime::UniqueRowCache docs - This describes the simple caching system
       included with Alzabo.

       The Alzabo::Debug docs - How to turn on various kinds of debugging output.

       The Alzabo::Exceptions docs - Describes the nature of all the exceptions used in Alzabo.

       The FAQ.

       The quick reference - A quick reference for the various methods of the Alzabo objects.

SCRIPTS

       Alzabo comes with a few handy scripts in the eg/ directory of the distribution.  These
       are:

       ·   alzabo_grep

           Given a regex and a schema name, this script will print out the table and column name
           for all columns which match the regex.

       ·   alzabo_to_ascii

           Given a schema name, this script will generate a set of simple ASCII tables for the
           schema.

SUPPORT

       The Alzabo docs are conveniently located online at http://www.alzabo.org/docs/.

       There is also a mailing list.  You can sign up at
       http://lists.sourceforge.net/lists/listinfo/alzabo-general.

       Please don't email me directly.  Use the list instead so others can see your questions.

COPYRIGHT

       Copyright (c) 2000-2003 David Rolsky.  All rights reserved.  This program is free
       software; you can redistribute it and/or modify it under the same terms as Perl itself.

       The full text of the license can be found in the LICENSE file included with this module.

AUTHOR

       Dave Rolsky, <autarch@urth.org>