This class is an alternative approach to developing database independant
code, which differs from modules that write SQL for you (such as
DBIx::Recordset). Instead this module provides an OO inheritance
hierarchy for putting methods that do your SQL.
For example, you create a Default.pm file (in the class hierarchy of your
choosing, for example My::Application::DB::Default), which contains your
default platform's SQL methods. Then you can provide an Oracle.pm, a
Sybase.pm, etc, that implement methods where a particular SQL statement
in Default.pm doesn't work on that platform. DBIx::AnyDBD knows what
platform you are connecting to, and calls the right methods in the right
class at runtime.
DBIx::AnyDBD also does the right thing on ADO and ODBC connections, so that
if you're connecting to Sybase via ODBC, it doesn't just call methods in
the ODBC.pm file, it will call those in Sybase.pm instead.
Changes since 1.98:
- Major patch from Brian McCauley implementing support for DBI::Proxy,
AdabasD, and better error reporting.
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