DBIx::SQLCrosstab version 1.10
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Creates a server-side cross tabulation from a database
DESCRIPTION
DBIx::SQLCrosstab produces a SQL query to interrogate a database
and generate a cross-tabulation report.
The amount of parameters needed to achieve the result is kept to
a minimum. You need to indicate which columns and rows to cross
and from which table(s) they should be taken.
Acting on your info, DBIx::SQLCrosstab creates an appropriate
query to get the desired result.
Compared to spreadsheet based cross-tabulations, DBIx::SQLCrosstab
has two distinct advantages, i.e. it keeps the query in the
database work space, fully exploiting the engine capabilities, and
does not limit the data extraction to one table.
The companion module DBIx::SQLCrosstab::Format provides nicely
formatted output in HTML, XML, YAML, CSV, xls, and of course as
several Perl structures (lol, loh, hoh).
VERSION
This is the initial distribution. The module has been tested
extensively in private, but of course the public scrutiny is
different, so I expect to get some bug reports in a near future.
You may consider this code as Beta.
INSTALLATION
To install DBIx::SQLCrosstab type the following:
perl Makefile.PL
make
make test
make install
EXAMPLES
In the directory examples there are two files:
- xtab.sqlite is a database in SQLite format
- sqlcrosstab_example.pl is an example of how to set
the initial parameters and get the results
in several formats.
- xtab.mysql is a database in MySQL format
DEPENDENCIES
This module requires these other modules and libraries:
DBI
one DBD driver module
Tree::DAG_Node
Optionally, if you want to produce YAML output, the YAML module
should be installed.
Similarly, for Excel spreadsheet output, you should install
Spreadsheet::WriteExcel
COPYRIGHT AND LICENCE
Copyright (C) 2003 Giuseppe Maxia
This library is free software; you can redistribute it and/or modify
it under the same terms as Perl itself.
