Extending DQL with Recursive Facilities

Piotr Wiśniewski, Marta Burzańska, Przemysław Krukowski

Abstract


Object Relational Mappings reduce a gap between Relational Databases and programming languages. However, only the simplest operations are covered by the ORM frameworks. Most facilities provided by DBMSs are not usable via ORM. Among such features are recursive queries, introduced in SQL:99 standard. This paper presents integration of Recursive Common Table Expressions with Doctrine Query Language - a part of Doctrine ORM framework for PHP.


Keywords


ORM, PHP, Doctrine, recursive queries, CTE

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References


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DOI: http://dx.doi.org/10.17951/ai.2016.16.1.12
Date of publication: 2016-10-04 09:01:47
Date of submission: 2016-05-18 07:18:26


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Copyright (c) 2016 Piotr Wiśniewski, Marta Burzańska, Przemysłąw Krukowski

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