[Zope] storyserver database access

I have been told: "As you know Vignette Story Server uses TCL/Ticle as its Proprietary Scripting Language & which allows PL/SQL Procedure Calls to the Oracle DB, Since the latest version of PL/SQL supports the Virtual Table/Row manipulation, which reduces the I/O time consumtion & deadlock Situations, also PL/SQL procedure allows higher volume of data manipulation with in the Cursors itself" Does ZOPE support this kind of procedureal access to the Oracle DB?. Pls advice. Martin van Nijnatten