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                                                                    Exhibit 99.1



FOR IMMEDIATE RELEASE

SIRSI CORPORATION
Contact:   Vicki Smith
Tel. No.:  (256) 704-7000
Email:        vickis@sirsi.com


          SIRSI ANNOUNCES COMPLETION OF TENDER OFFER FOR DATA RESEARCH

HUNTSVILLE, AL, AUGUST 29, 2001 - SIRSI HOLDINGS CORP. (SIRSI), a privately held
company, today announced that McGuire Acquisition Inc. (McGuire), a wholly owned
indirect subsidiary of SIRSI, accepted for payment the 4,438,648 shares of
common stock, par value $0.01 per share, of Data Research Associates, Inc. (DRA)
that had been validly tendered pursuant to McGuire's offer to purchase all of
DRA's outstanding shares for $11.00 per share net to the seller in cash, without
interest, including 15,992 shares tendered pursuant to guaranteed delivery
procedures. The offer expired at 12:00 Midnight, New York City time on Tuesday,
August 28, 2001. The shares tendered represent approximately 98.6% of DRA's
outstanding shares.

SIRSI also announced that it expects to promptly consummate the merger of
McGuire with and into DRA, pursuant to which DRA will become a wholly owned
subsidiary of SIRSI Corporation, a wholly owned subsidiary of SIRSI. As a result
of this merger, all remaining stockholders (other than SIRSI and its
subsidiaries and other than stockholders of DRA who object to the merger, demand
payment of the fair value of their shares under applicable Missouri law and, as
of the effective time of the merger, have neither withdrawn nor lost the right
to such demand) will be converted into the right to receive the same $11.00 per
share net to the seller in cash, without interest, paid in the offer.

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EDITORS: FOR INFORMATION ON SIRSI AND DRA, VISIT THEIR RESPECTIVE WEB SITES --
www.sirsi.com AND www.dra.com. FOR ADDITIONAL INFORMATION ON THIS RELEASE, VISIT
SIRSI'S PRESS EXTRANET AT www.sirsi.com/Press.
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