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Sleepycat Software
Creator of Berkeley DB XML: A high-performance, extremely reliable embedded database engine that stores and manages XML data. It is built on top of the award-winning Berkeley DB, which provides fast, reliable, scalable, and mission-critical database support.
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| About Sleepycat Software: |
Sleepycat Software is a privately-held company that makes Berkeley DB, the most widely-used embedded data management software in the world. Profitable since it started in 1996, the company boasts some of the leading database engineers in the world, including co-founder and CTO Dr. Margo Seltzer, the Gordon McKay Professor of Computer Science and Associate Dean for Computer Science and Engineering at Harvard University. Based in Massachusetts, Sleepycat works with some of the world's largest enterprise companies who have deployed Berkeley DB for mission-critical applications. Our customers range from computing giants such as HP, IBM and Sun to e-commerce, networking and wireless leaders such as Amazon, Cisco and Motorola.
Berkeley DB XML is a high-performance, extremely reliable embedded database engine that stores and manages XML data. It is built on top of the award-winning Berkeley DB, which provides fast, reliable, scalable, and mission-critical database support.
Berkeley DB XML is supplied as a library that links directly into the user's application. This provides superior performance by eliminating communications among processes or systems and delivering a truly embedded XML data management system.
Berkeley DB XML enables fast look up by allowing individual collections to be indexed differently. This allows Berkeley DB XML to speed up the common queries over particular collections. Each collection supports multiple indexes. A wide variety of available indexing schemes support different XPath queries efficiently.
Berkeley DB XML's Query Processor implements XPath 1.0. A cost-based query optimizer considers the indices that exist, the data volume that a query is likely to produce and the cost of computation and disk I/O to select a query plan with the lowest run-time cost. Results may be computed eagerly or lazily. Lazy evaluation makes it easy to stream results to the user.
-- Source: Sleepycat Software Web site
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| Address: |
118 Tower Road
Lincoln, MA 01773 |
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Toll-free: 1-877-SLEEPYCAT
Phone: 1-617-876-0858
 www.sleepycat.com
| W3C Member: No |
OASIS Member: No |
WS-I Member: No
Last Updated: Jul 10 2003
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