DATAMIRROR HELPS DEBENHAMS GEAR up for BUSIEST WEDDING Submittedseason By: Yetspeed Communications Wednesday, 18 July 2001

DATAMIRROR HELPS DEBENHAMS GEAR UP FOR BUSIEST WEDDING SubmittedSEASON by: YETSpeed Communications Wednesday, 18 July 2001

...UK’s Largest Bridal List Relies on DataMirror Transformation Server Technology... July 18th 2001 -- DataMirror Corporation (Nasdaq: DMCX; TSE: DMC), a leading provider of enterprise application integration and resiliency solutions, today announced that Debenhams, the UK’s largest bridal list registry, expects to handle over 35,000 wedding lists in 2001 using its Transformation Server technology. DataMirror Transformation Server is used to synchronise information in real-time between Debenhams’ web site, call centre and its 96 stores around the world. “Summer is obviously our major time in terms of wedding lists – and this year promises to be our busiest yet,” commented Bill Maginn, e-Commerce Production and Development Controller, Debenhams. “Last year over 700,000 guests purchased gifts. As a company we strive to ensure that every transaction on every wedding list goes smoothly and using DataMirror’s Transformation Server helps us to achieve this objective. It enables us to integrate data in real-time, allowing people to make purchases in store, over the phone or via the web site safe in the knowledge that they are not making duplications.” The Debenhams bridal registry service is designed to be convenient, easy to use, and transparent to the end user. The bride and groom use a handheld device in store to scan the bar code of the items they want on their list. This information is downloaded onto Debenhams central system, and using DataMirror Transformation Server, the up-to-date list is synchronised and flowed to all Debenhams stores, the call centre and the web site. Guests can either make purchases in their local store, through a dedicated call centre or online. As soon as a guest buys an item, it is removed from the central system ensuring that purchases are not duplicated. In addition, it allows the bride and groom to track the current status of what has been bought from their wedding list and to change their list online. The bride and groom can view their wedding list either on a touch screen in-store or via www.debenhams.com. DataMirror Transformation Server integrates critical data across the three different purchasing channels and also two different server platforms and two different data environments. The disparate systems incorporate IBM's DB2 database running on a central iSeries (AS/400) platform and Microsoft's SQL Server database on Microsoft Windows NT. Debenhams has also chosen DataMirror High Availability Suite to provide a disaster recovery and data resiliency solution for their business-critical iSeries data in the event of planned or unplanned system downtime. “Real-time data integration is key to the success of Debenham’s wedding list service, and the high performance, flexibility and reliability of Transformation Server enables the company to provide unparalleled customer service,” said Nigel Stokes, Chairman, President and CEO of DataMirror Corporation. Customer uptake of the Wedding List service has been strong with about 15% of purchases now made online.

Page 1 The success of the Wedding Service has received widespread industry recognition. It has won the Queen's Award for Enterprise, given for innovation, and it has also won the Retail Week Customer Initiative of the Year Award in 2000 and The Retail Technology Award in 2001. About Debenhams With 96 department stores throughout the United Kingdom and the Republic of Ireland, as well as in Bahrain, Kuwait, Dubai, Qatar and Budapest, Debenhams is globally recognised as a market leader in the retail industry. Debenhams also operates the UK's largest Wedding Service, with over 700,000 guests purchasing gifts from Debenhams last year and over 35,000 lists forecast to be completed during 2001. Debenhams' fully transactional web site (www.debenhams.com) gives customers the opportunity to make use of the online wedding list service and purchase from a range of merchandise including flowers, lingerie and electrical goods. Debenhams also produces a home shopping catalogue, Debenhams Direct, featuring over 500 pages and distributed to over 350,000 UK households. About DataMirror Solutions DataMirror Transformation Server transforms the experience of doing business by delivering real-time data flows to the people who need it. Transformation Server technology keeps data flowing from one end of the enterprise to the other and helps people work faster and smarter now. It lets users capture, transform and flow their data in real-time between DB2 UDB, Microsoft SQL Server, Oracle and Sybase across UNIX, Linux, Microsoft Window NT/2000, OS/400 and OS/390. DataMirror iDeliver software extends the capabilities of Transformation Server by allowing companies to securely filter and publish corporate data via the Internet. DataMirror High Availability Suite is a single integrated product for continuous business operations in iSeries (AS/400) environments. It captures iSeries objects and database transactions from primary iSeries systems and mirrors them in real-time to one or more secondary iSeries. High Availability Suite can detect primary system failure and invoke operational switching, to enable continuous availability. It is engineered specifically to save companies time and system resources typically required in high availability implementations. About DataMirror Corporation DataMirror (Nasdaq: DMCX; TSE: DMC) delivers solutions that let customers integrate their data across their enterprises. DataMirror’s comprehensive family of products unlocks the experience of now™ by providing advanced real-time capture, transform and flow (CTF) technology that gives customers the instant access, integration and availability they demand today across all computers in their business. Over 1,400 companies use DataMirror to integrate their data. Real-time data drives all business. DataMirror is headquartered in Toronto, Canada, and has offices worldwide. DataMirror has been ranked in the Deloitte and Touche Fast 500 as one of the fastest growing technology companies in North America. For more information, call 1-800-362-5955 or visit the DataMirror web site at www.datamirror.com.

Page 2 Media and Financial Contacts: Chris Measures/Sarra Mander Public Relations for DataMirror Rainier Email: [email protected] Phone: 0207 494 6570 PHOTOGRAPHS AVAILABLE For photos please contact Rainier. Tracy Staniland Director of Marketing DataMirror Corporation Email:[email protected] Phone: 001 905 415-0310 ext. 274 Joanna Lane-Jones Director of Corporate Communications Debenhams Email: [email protected] Phone: 0207 408 3459 "Safe Harbor" Statement under the United States Private Securities Litigation Reform Act of 1995: "Safe Harbor" Statement under the United States Private Securities Litigation Reform Act of 1995: Forward-looking statements in this press release, including statements regarding DataMirror Corporation's business which are not historical facts, are made pursuant to the "safe harbor" provisions of the United States Private Securities Litigation Reform Act of 1995. Forward-looking statements include statements of plans, objectives, strategies and expectations. The words "anticipate", "believe", "estimate" and "expect" and similar expressions are intended to identify forward-looking statements. Numerous important factors affect DataMirror's operating results and could cause DataMirror's actual results to differ materially from the results indicated by this press release or by any forward-looking statements made by, or on behalf of, DataMirror, and there can be no assurance that future results will meet expectations, estimates or projections. These factors include, but are not l! imited to, the following: variability of quarterly operating results; dependence upon on the continued growth and success of DataMirror's software products; competition; rapid technological change and new product introductions; dependence upon continued growth in the database and enterprise data integration markets; dependence upon relationships with complementary vendors and distribution channels; the ability to recruit and retain key personnel; risks of international operations, including currency exchange rate fluctuations and global economic conditions; possible software errors or defects; possible infringement claims by third parties; and other factors discussed in the Company's Annual Information Form and other

Page 3 periodic filings with the United States Securities and Exchange Commission and other regulatory authorities. Should one or more of these risks or uncertainties materialize, or should assumptions underlying the forward-looking statements prove incorrect, actual r! esults may vary materially from those indicated in any forward-looking statements. The Company disclaims and does not assume any obligation to update these forward-looking statements. Copyright 2001 DataMirror Corporation. All rights reserved. DataMirror, High Availability Suite, Transformation Server, iDeliver and The experience of now are trademarks or registered trademarks of DataMirror Corporation. All other brand or product names are trademarks or registered trademarks of their respective companies.

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