I have noticed there\'s no datasource for Oracle in CakePHP 2.0 for the moment, although it seems they are working on in it now: http://ask.cakephp.org/questions/view/any_ne
After asking some CakePHP developers I came out with the conclusion that it is not possible to use an Oracle Database with CakePHP 2.3 if you want to make a proper use of CakePHP Models and their query syntax. There's no yet available any driver for Oracle in CakePHP which is completely functional.
Therefore, the solution I found was to use the OCI8 Functions of PHP.
Like this i could use oci_parse
to directly query against the DB or rather call a PL-SQL procedure which is what I finally decided to do. (because of the sql functions complexity and the division of task inside my work group)
Now, I can not make use of many of the advantages of using CakePHP models, but It was the only way.
There is a new CakePHP 3 Driver for Oracle Database released (MIT) and working with Oracle 11g and Oracle 12c databases. Some features:
Check the Documentation here, and the release announcement here.