Kyle Waldinger, an assistant U.S. attorney in San Francisco, was this week, Bloomberg reported.

SAP spokesman Bill Wohl declined to comment beyond reiterating that his company would cooperate with any requests. A spokeswoman for Oracle declined to comment.

SAP has admitted that its now-closed TomorrowNow subsidiary stole support materials from an Oracle website, and .

Charles Phillips, a former Oracle president, , and Oracle Chairman and CEO Larry Ellison is due to take the stand Monday. SAP will begin to present its defense in about 10 days, and the trial is expected to wrap up before the end of the month.