New DataMirror alliance delivers native log-based Change Data Capture to Netezza

(EMAILWIRE.COM, December 05, 2006 ) TORONTO and SANTA CLARA, Calif. – DataMirror® (TSX: DMC), a leading provider of real-time data integration and protection solutions, today announced formal optimized support for the Netezza Performance Server® data warehouse appliance. DataMirror’s integration solution brings native log-based Change Data Capture (CDC) capabilities to Netezza’s customers so they can respond faster to changing business information, improve customer service and realize high-performance data warehousing, while DataMirror’s customers gain a low-cost data warehousing option. The optimized integration between these products reduces data latency and makes it easier for organizations to quickly capture and extract value from enterprise data. “DataMirror’s log-based CDC technology, in conjunction with Netezza’s data warehouse appliance, empowers organizations to quickly make the best business decisions possible with the best information available without impacting mission-critical business applications,” said John Fisher, Director, Channels and Alliances, DataMirror Corp.A key component of DataMirror’s real-time data integration solutions, native log-based CDC technology captures changed data directly from database logs without affecting the performance of source applications. Rather than using triggers or performing queries against the database, changes are captured continuously – as they occur and in the order they happen – to ensure transactional integrity, eliminate redundant data transfer, and save network bandwidth. Information is always up-to-date, not just as current as the last batch window. DataMirror solutions also enable audit and compliance and error traceability by logging all changes to the system, not just the net results of those changes, and detecting all transactions including descriptive information about the change such as user, application and time.“By introducing optimized support for the Netezza appliance, DataMirror is fully able to leverage the high-speed load characteristics of the Netezza Performance Server system, minimizing data latency,” said Vishal Daga, Director, Partner Marketing, Netezza Corp. “Additionally, Netezza’s breakthrough performance allows BI users to quickly and easily run complex analyses in seconds or minutes that would have taken days or could not have been even executed at all on other systems. This combination of delivering quicker access to data, along with a much greater ability to extract value from it, provides Netezza’s customers with a significant competitive advantage and continues to fuel our success in the market.”About Netezza CorporationNetezza, the global data warehouse appliance market leader, enables enterprises to make all of their data actionable – quickly, simply and affordably. The Netezza Performance Server family of products delivers breakthrough performance, unmatched ease of deployment and operation, and innovative flexibility and scalability at a fraction of the cost of traditional data warehouse solutions. By architecturally integrating database, server and storage within a single appliance, the NPS system delivers 10 to 100 times the performance at half the cost of existing systems. Customers who have recognized the benefits of Netezza’s approach include Ahold, Amazon.com, Cingular Wireless, CNET Networks, Debenhams, Department of Veterans Affairs, Epsilon, Orange UK, Premier, Inc., Ryder System, Inc., Shoppers Drug Mart Corporation, The Carphone Warehouse and The TJX Companies. Based in Framingham, Mass., Netezza has offices in Washington, DC, the United Kingdom and the Asia Pacific region. The Company is backed by leading venture capital firms, including Matrix Partners, Charles River Ventures, Battery Ventures, Orange, Sequoia Capital and Meritech Capital Partners. For more information about Netezza, visit www.netezza.com.About DataMirror DataMirror (TSX: DMC), a leading provider of real-time data integration and data protection solutions, improves the integrity and reliability of information across all of the systems that create and store data. DataMirror’s flexible and affordable integration solutions allow customers to easily and continuously detect, translate, and communicate all information changes throughout the enterprise. DataMirror helps customers make better decisions by providing access to the continuous, accurate information they need to take timely action and move forward faster. More than 2,100 companies have gained tangible competitive advantage from DataMirror software. DataMirror is headquartered in Markham, Canada, and has offices around the globe. For more information, visit www.datamirror.com. # # # Note to Readers: This press release contains certain statements that constitute forward-looking information or statements within the meaning of applicable securities laws (“forward-looking statements”). Such forward-looking statements involve known and unknown risks, uncertainties and other factors that may cause the Company’s actual results or performance to differ from the projected results or performance contained in such forward-looking statements. Forward-looking statements may also include, without limitation, any statement relating to future events, conditions or circumstances. DataMirror cautions you not to place undue reliance upon such forward-looking statements, which speak only as of the date they are made. 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 limited to, the following: the difficulty of developing, marketing and selling new products successfully; variability of quarterly operating results; dependence upon 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 DataMirror's Annual Information Form and other periodic filings with applicable securities regulators. Should one or more of these risks or uncertainties materialize, or should assumptions underlying the forward-looking statements prove incorrect, actual results may vary materially from those indicated in any forward-looking statements. DataMirror disclaims and does not assume any obligation to update these forward-looking statements. Copyright 2006 DataMirror Corporation. DataMirror and the DataMirror family of related marks are registered trademarks of DataMirror Corporation. DataMirror and the DataMirror logo are registered in the U.S. Patent and Trademark office, the Canadian Intellectual Property Office, and may be pending or registered in other countries. All other products and services mentioned are trademarks of their respective companies.Contacts:Suzanne Wintrob, Corporate Communications, DataMirror Corporation, 905-415-0310 ext. 173, swintrob@datamirror.com; Peter Cauley, Chief Financial Officer, DataMirror Corporation, 905-415-0310 ext. 271, pcauley@datamirror.com.

Nora Pang

npang@datamirror.com