1 EXHIBIT 23 CONSENT OF INDEPENDENT AUDITORS We consent to the incorporation by reference in the Registration Statement (Form S-8, No. 33-77160) pertaining to the Data Research Associates, Inc. 401(k) Profit Sharing Plan of our report dated January 7, 2000, with respect to the financial statements and Annual Report (Form 11-K) for the year ended September 30, 1999. /s/Ernst & Young LLP - -------------------------- St. Louis, Missouri - -------------------------- March 14, 2000