The tradionary method for designing relation database table is to erect E - R diagram, and then tran mapped to database table.
对于关系数据库表的设计常采用的方法是建立E—R图，然后进行映射生成相应的数据库表。
To create a new feed from the product table, the production manager first clicks on the New Feed link on the main page and selects Relation Database Query (SQL) from the supported data sources list.
为了从产品表创建新的提要，生产经理首先单击主页上的 New Feed 链接，并从受支持数据源列表中选择 Relation Database Query (SQL)。
According to the demands, the structure of the database has been designed: defining data, defining table, building relation data model and designing the data structure.
按照任务的目的和要求，设计了其数据库系统结构：定义数据、表、创建数据关系模型及设计数据结构。
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