SAP is asking a US court to force Oracle to reveal its profit margins on JD Edwards and PeopleSoft software and support contracts.
The SAP call is linked to the legal action Oracle brought in 2007 against its rival, after it was revealed that staff of a SAP maintenance support subsidiary had wrongly downloaded Oracle support software from Oracle systems.
It is alleged by Oracle this software was used by SAP to try to poach its customers.
Both companies want to settle the dispute, but SAP's call for profit margin figures on specific Oracle products has been rejected by Oracle.
Such information is regarded as highly confidential by most software companies. If it became public, it would put them at a disadvantage when negotiating new deals with customers and would be useful to rivals.
SAP claims the information is necessary to estimate out of court damages to Oracle.