在DB 2 9.7中，行压缩(也称为深度压缩)通过把跨行重复出现的值模式替换为更短的符号字符串来压缩数据行。
In DB2 9.7, row compression, also referred to as deep compression, compresses data rows by replacing patterns of values that repeat across rows with shorter symbol strings.
在某些模式中一些选项及符号元素可能失效了，所以选择合适的模式有助于为目标流程的执行环境定义适当的构件。
Some options and notational elements can be disabled in some modes, and selecting the appropriate model helps define appropriate artifacts for the target workflow execution environment.
差距分析针对的是 UML 符号在捕获 XML 模式所提供的全部功能时所显出的不足。
The gap analysis points to the shortfalls of UML notation when capturing all of the functionalities provided by XML schemas.
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