一旦配置了数据适配器，您就可以生成数据集定义了，该数据集将存储您的数据适配器断开连接的结果集。
Once you have configured your data adapter, you can generate the data set definition that will host your data adapter disconnected result sets.
服务器为表中的各个列生成数据分布，这些数据分布被以编码直方图的形式存储在sysdistrib系统编目的encdat列中。
Data distributions are generated by the server for individual columns of a table, and are stored as encoded histograms in the encdat column of the sysdistrib system catalog.
最重要的一点是，Rational Data Architect是一款可允许用户执行逻辑和物理数据建模、存储、域以及集成数据建模的强大工具。
Foremost, Rational data Architect is a powerful tool that allows you to perform logical, physical, storage, domain, and integration data modeling.
应用推荐