DBIx::Class::SQLMaker:UsercContributed PeDBIx::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 v5.16.22012-08DBIx::Class::SQLMaker::OracleJoins(3)
