Nathan Gray > DateTime-Format-Oracle-0.06 > DateTime::Format::Oracle

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NAME ^

DateTime::Format::Oracle - Parse and format Oracle dates and timestamps

SYNOPSIS ^

  use DateTime::Format::Oracle;

  $ENV{'NLS_DATE_FORMAT'} = 'YYYY-MM-DD HH24:MI:SS';
  my $dt = DateTime::Format::Oracle->parse_datetime('2003-01-16 23:12:01');
  my $string = DateTime::Format::Oracle->format_datetime($dt);

DESCRIPTION ^

This module may be used to convert Oracle date and timestamp values into DateTime objects. It also can take a DateTime object and produce a date string matching the NLS_DATE_FORMAT.

Oracle has flexible date formatting via its NLS_DATE_FORMAT session variable. Date values will be returned from Oracle according to the current value of that variable. Date values going into Oracle must also match the current setting of NLS_DATE_FORMAT.

Timestamp values will match either the NLS_TIMESTAMP_FORMAT or NLS_TIMESTAMP_TZ_FORMAT session variables.

This module keeps track of these Oracle session variable values by examining environment variables of the same name. Each time one of Oracle's formatting session variables is updated, the %ENV hash must also be updated.

METHODS ^

This class offers the following methods.

LIMITATIONS ^

Oracle is more flexible with the case of names, such as the month, whereas DateTime generally returns names in ucfirst format.

  MONTH -> FEBRUARY
  Month -> February
  month -> february

All translate to:

  %B    -> February

TIME ZONES

Oracle returns all dates and timestamps in a time zone similar to the DateTime floating time zone, except for 'timestamp with time zone' columns.

INTERVAL ELEMENTS

I have not implemented parse_duration, format_duration, parse_interval, nor format_interval, and have no plans to do so.

If you need these features, unit tests, method implementations, and pointers to documentation are all welcome.

SUPPORT ^

Support for this module is provided via the datetime@perl.org email list. See http://lists.perl.org/ for more details.

TODO ^

Possibly read an environment variable to determine a time zone to use instead of 'floating'.

Test and document creating an instance via new.

AUTHOR ^

Nathan Gray, <kolibrie@cpan.org>

ACKNOWLEDGEMENTS ^

I might have put this module off for another couple years without the lure of Jifty, Catalyst, and DBIx::Class pulling at me.

Thanks to Dan Horne for his RFC draft of this module.

COPYRIGHT & LICENSE ^

Copyright (C) 2006, 2008, 2011 Nathan Gray.

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself, either Perl version 5.8.4 or, at your option, any later version of Perl 5 you may have available.

SEE ALSO ^

Convert::NLS_DATE_FORMAT

datetime@perl.org mailing list

http://datetime.perl.org/

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