Laurent Dami > DBIx-DataModel > DBIx::DataModel::Statement::Oracle

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NAME ^

DBIx::DataModel::Statement::Oracle - Statement for interacting with DBD::Oracle

SYNOPSIS ^

  DBIx::DataModel->Schema("MySchema",
     statement_class => "DBIx::DataModel::Statement::Oracle",
  );

  my $rows = $source->select(
    ...,
    -limit  => 50,
    -offset => 200,
  );

DESCRIPTION ^

This subclass redefines some parent methods from DBIx::DataModel::Statement in order to take advantage of "Scrollable Cursor Methods" in DBD::Oracle.

This is interesting for applications that need to do pagination within result sets, because Oracle has no support for LIMIT/OFFSET in SQL. So here we use some special methods of the Oracle driver to jump to a specific row within a resultset, and then extract a limited number of rows.

The API is exactly the same as other, regular DBIx::DataModel implementations.

AUTHOR ^

Laurent Dami, <laurent.dami AT etat ge ch>, April 2012.

COPYRIGHT AND LICENSE ^

Copyright 2011 by Laurent Dami.

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

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