NAME

Acme::BeyondPerl::ToSQL - RDBMS calculates instead of Perl

SYNOPSIS

 use Acme::BeyondPerl::ToSQL ("dbi:SQLite:dbname=acme_db","","");
 
 my $value = 5;
 
 print 2 + $value , "\n"; # 7
 print 1.2 - 0.2  , "\n"; # 1
 print 9 / 2      , "\n"; # 4.5
 
 
 # DEBUG MODE
 # use Acme::BeyondPerl::ToSQL ({
 #     dbi => ["dbi:SQLite:dbname=acme_db","",""], debug => 1,
 # });
 #
 # SELECT 1.2000000000000000 - 0.2000000000000000
 # SELECT 9.0 / 2.0
 # SELECT 2.0 + 5.0

 # use Acme::BeyondPerl::ToSQL ({
 #     dbi => ["dbi:Pg:dbname=$dbname;host=$host", $user, $pass], debug => 1,
 # });
 #
 # SELECT CAST(1.2 AS double precision) - CAST(0.2 AS double precision)
 # SELECT CAST(9 AS double precision) / CAST(2 AS double precision)
 # SELECT CAST(2 AS double precision) + CAST(5 AS double precision)

DESCRIPTION

When you use Acme::BeyondPerl::ToSQL, your RDBMS will calculate instead of Perl!

Currently supported RDBMS are SQLite, PostgreSQL and MySQL.

HOW TO USE

Acme::BeyondPerl::ToSQL ($dsn, $user, $pass, $opts)

To use DBI, you must pass some arguments.

 use Acme::BeyondPerl::ToSQL ("dbi:SQLite:dbname=acme_db","","");

 use Acme::BeyondPerl::ToSQL
           ("dbi:Pg:dbname=$dbname;host=$host", $user, $pass, \%opts);

Acme::BeyondPerl::ToSQL ({dbi => $arrayref, debug => $true_or_false})

 use Acme::BeyondPerl::ToSQL ({
     dbi   => ["dbi:SQLite:dbname=acme_db","",""],
     debug => 1,
 });

EXPORT

None.

BUGS

All the effects of this module are constrained to overload and overload::constant.

There might be an operator not supported.

When this module is used at the same time with two or more files on Windows 2000 + ActivePerl, I find a warning "Attempt to free unreferenced scalar".

SEE ALSO

overload,

overload::constant,

DBI

AUTHOR

Makamaka Hannyaharamitu, <makamaka[at]cpan.org>

COPYRIGHT AND LICENSE

Copyright 2005 by Makamaka Hannyaharamitu

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.