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Full Discussion: how this works?
Top Forums Programming how this works? Post 302232233 by buffoonix on Thursday 4th of September 2008 07:00:55 AM
Old 09-04-2008
Actually, I'm not into Oracle SQL so I might be wrong.
But I would simply interpret it as a string formatting of some result set.
The substr stuff should take the 1st character from filed, and the rest just looks like simple string concatenation with Oracle's weird concat operator || if I recall correctly.
 

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Apache::Session::Oracle(3pm)				User Contributed Perl Documentation			      Apache::Session::Oracle(3pm)

NAME
Apache::Session::Oracle - An implementation of Apache::Session SYNOPSIS
use Apache::Session::Oracle; #if you want Apache::Session to open new DB handles: tie %hash, 'Apache::Session::Oracle', $id, { DataSource => 'dbi:Oracle:sessions', UserName => $db_user, Password => $db_pass, Commit => 1 }; #or, if your handles are already opened: tie %hash, 'Apache::Session::Oracle', $id, { Handle => $dbh, Commit => 1 }; DESCRIPTION
This module is an implementation of Apache::Session. It uses the Oracle backing store and no locking. See the example, and the documentation for Apache::Session::Store::Oracle for more details. USAGE
The special Apache::Session argument for this module is Commit. You MUST provide the Commit argument, which instructs this module to either commit the transaction when it is finished, or to simply do nothing. This feature is provided so that this module will not have adverse interactions with your local transaction policy, nor your local database handle caching policy. The argument is mandatory in order to make you think about this problem. This module also respects the LongReadLen argument, which specifies the maximum size of the session object. If not specified, the default maximum is 8 KB. AUTHOR
This module was written by Jeffrey William Baker <jwbaker@acm.org>. SEE ALSO
Apache::Session::File, Apache::Session::Flex, Apache::Session::DB_File, Apache::Session::Postgres, Apache::Session perl v5.10.1 2010-10-18 Apache::Session::Oracle(3pm)
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