1 EXHIBIT 23.01 CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS As independent public accountants, we hereby consent to the incorporation by reference in this registration statement of our report dated January 25, 1999 (except for certain matters as to which the date was March 19, 1999, included in Versant Corporation's Form 10-KSB for the year ended December 31, 1998 and to all references to our Firm included in this registration statement. /s/ Arthur Andersen LLP ----------------------- ARTHUR ANDERSEN LLP San Jose, California August 12, 1999