Distributed relation database architecture (DRDA) is the common protocol used for communication between the client and the server, and is provided by the Runtime client.

分布式关系数据库体系结构(distributed relation database architecture, DRDA)是用于客户机与服务器之间通信的常见协议，它由Runtime Client提供。

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The quantile statistics default value is controlled by the num_quantiles database configuration parameter and provides information about how data values are distributed in relation to other values.

分位数统计信息的默认值由 num_quantiles 数据库配置参数控制，该值提供了数据值对于其他值而言是如何分布的有关信息。

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On the basis of theoretic research, a collision solution support tool is developed based on relation database, and the tool can help solving collision in the distributed cooperation design course.

根据理论研究成果，基于关系数据库，开发了冲突解决支持工具，该工具支持分布式协同设计过程的冲突解决。

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