11-10-2015
Linux, like most *ix doesn't pass the symlink data through something that can evaluate a variable expression.
I think OSX might support this though and I know that Apollo OS's did (and likely HP-UX still has some support for this). As a former Apollo user you could create a symlink with a variable as part of the link name. In fact, you could could point your entire /usr space to run off somebody else's machine by merely changing and environment variable. It was also how they allowed you to easily switch shell flavors.
It's not that Oracle didn't go totally brain dead on how they did things, it's just that they don't want to change to become more modern. Oracle "stuff" like this has been around since before most people on this forum were probably born.
Good question, but the problem isn't lack of features in the shell or OS, the problem is Oracle....
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LEARN ABOUT MOJAVE
dbix::class::sqlmaker::oraclejoins
DBIx::Class::SQLMaker::OracleJoins(3) User Contributed Perl Documentation DBIx::Class::SQLMaker::OracleJoins(3)
NAME
DBIx::Class::SQLMaker::OracleJoins - Pre-ANSI Joins-via-Where-Clause Syntax
PURPOSE
This module is used with Oracle < 9.0 due to lack of support for standard ANSI join syntax.
SYNOPSIS
Not intended for use directly; used as the sql_maker_class for schemas and components.
DESCRIPTION
Implements pre-ANSI joins specified in the where clause. Instead of:
SELECT x FROM y JOIN z ON y.id = z.id
It will write:
SELECT x FROM y, z WHERE y.id = z.id
It should properly support left joins, and right joins. Full outer joins are not possible due to the fact that Oracle requires the entire
query be written to union the results of a left and right join, and by the time this module is called to create the where query and table
definition part of the sql query, it's already too late.
METHODS
select
Overrides DBIx::Class::SQLMaker's select() method, which calls _oracle_joins() to modify the column and table list before calling
next::method().
BUGS
Does not support full outer joins (however neither really does DBIC itself)
SEE ALSO
DBIx::Class::Storage::DBI::Oracle::WhereJoins - Storage class using this
DBIx::Class::SQLMaker - Parent module
DBIx::Class - Duh
AUTHOR
Justin Wheeler "<jwheeler@datademons.com>"
CONTRIBUTORS
David Jack Olrik "<djo@cpan.org>"
LICENSE
This module is licensed under the same terms as Perl itself.
perl v5.18.2 2014-01-22 DBIx::Class::SQLMaker::OracleJoins(3)