... All Records)记录方向(Record Orientation)单记录(Single Record) 数据库数据块(Database Block)使用主键(Enforce Primary Key)查询数据源类 型(Query Da ta Source Type)查询数据源名称(Query Data Source Name)查询 数据源列(Query Data Source Columns)查...
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To enforce that specified keys are unique with respect to the specific time period, specify the primary key constraint BUSINESS_TIME WITHOUT OVERLAPS as the last item with the list of other keys.
要确保指定的键在特定时间段内是惟一的，可以指定主键约束BUSINESS_TIME WITHOUT OVERLAPS作为包含其他键的列表中的最后一项。
Define a primary key to enforce uniqueness for values entered in specified columns that do not allow nulls.
定义主键以对不允许空值的指定列中输入的值强制唯一性。
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