There are no primary key indexes in PeopleSoft - they only unique indexes. Neither is there any database enforced RI. regards _________________________ David Kurtz Go-Faster Consultancy Ltd. tel: +44 (0)7771 760660 fax: +44 (0)7092 348865 mailto:david.kurtz@xxxxxxxxxxxxxxx web: www.go-faster.co.uk Book: PeopleSoft for the Oracle DBA: http://www.psftdba.com <http://www.psftdba.com/> DBA Blogs: PeopleSoft: http://blog.psftdba.com <http://blog.psftdba.com/> , Oracle: http://blog.go-faster.co.uk <http://blog.go-faster.co.uk/> PeopleSoft DBA Forum: http://groups.yahoo.com/group/psftdba _____ From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Niall Litchfield Sent: Thursday, January 20, 2011 1:31 PM To: ORACLE-L Subject: interesting snippet from Oracle FUD paper Importance: High There is an Oracle whitepaper comparing RAC (wonderful, performant and simple) with SQL Server 2008 (awful, slow and complex :)) In it there is an interesting table for ERP schemas. Now I know some of apps predates declarative referential integrity, but that was introduced an awfully long time ago now. Tables Primary Key Indexes Peoplesoft 7,493 6,438 Oracle eBusiness (ERP) 8,155 800 SAP 16,500 16,329 -- Niall Litchfield Oracle DBA http://www.orawin.info