1 package DBIx::Class::Storage::DBI::Oracle::WhereJoins;
6 use base qw( DBIx::Class::Storage::DBI::Oracle::Generic );
9 __PACKAGE__->sql_maker_class('DBIx::Class::SQLMaker::OracleJoins');
19 DBIx::Class::Storage::DBI::Oracle::WhereJoins - Oracle joins in WHERE syntax
20 support (instead of ANSI).
24 This module is used with Oracle < 9.0 due to lack of support for standard
29 DBIx::Class should automagically detect Oracle and use this module with no
34 This class implements Oracle's WhereJoin support. Instead of:
36 SELECT x FROM y JOIN z ON y.id = z.id
40 SELECT x FROM y, z WHERE y.id = z.id
42 It should properly support left joins, and right joins. Full outer joins are
43 not possible due to the fact that Oracle requires the entire query be written
44 to union the results of a left and right join, and by the time this module is
45 called to create the where query and table definition part of the SQL query,
46 it's already too late.
50 See L<DBIx::Class::SQLMaker::OracleJoins> for implementation details.
54 Does not support full outer joins.
61 =item L<DBIx::Class::SQLMaker>
63 =item L<DBIx::Class::SQLMaker::OracleJoins>
65 =item L<DBIx::Class::Storage::DBI::Oracle::Generic>
71 =head1 FURTHER QUESTIONS?
73 Check the list of L<additional DBIC resources|DBIx::Class/GETTING HELP/SUPPORT>.
75 =head1 COPYRIGHT AND LICENSE
77 This module is free software L<copyright|DBIx::Class/COPYRIGHT AND LICENSE>
78 by the L<DBIx::Class (DBIC) authors|DBIx::Class/AUTHORS>. You can
79 redistribute it and/or modify it under the same terms as the
80 L<DBIx::Class library|DBIx::Class/COPYRIGHT AND LICENSE>.