另一项新特性是针对Excel 2010的HPC服务，它会有助于在HPC的集群中处理大型的Excel工作表和多个用户定义功能(udf)。
HPC Services for Excel 2010 is another new feature helping to process large Excel spreadsheets and multiple User Defined Functions (UDFs) on HPC clusters.
解决持续时间的聚合问题可以使用 TIMESTAMPDIFF，如下面的样本实例中所显示，它是使用 DB2 UDB 实现的嵌入式 UDF（用户定义的功能）。
The solution for aggregation of timestamp durations is to use TIMESTAMPDIFF, a built-in UDF (user defined function) that is included with DB2 UDB, as shown in the following example.
而且它还提供注册中心功能，通过用户定义的属性、关系和分类器来扩展已注册的服务声明和派生内容模型元素。
And it provides registry functions for decorating registered service declarations and elements of the derived content models with user-defined properties, relationships, and classifiers.
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