Property for more information about how to create an array of primary key columns 有关如何创建主键列数组的更多信息，请参见
The update statement is provided on all column values and the primary key column values Update语句在所有的列值和主键列值中提供。
Method takes an array of values and finds the matching value in the primary key column 方法提取值的数组，并在主键列中查找匹配值。
The columns you choose for the foreign key must have the same data type of the primary columns they correspond to 选作外键的列必须和它们对应的主键列具有相同的数据类型。
This often occurs when the database table does not have a primary key column , or the select command uses joins 这通常发生在数据库表没有主键列时，或select命令使用joins时。
Gets a value that indicates whether the primary key columns of any row in the collection contain the specified value 获取一个值，该值表明集合中任何行的主键列是否包含指定值。
If both primary key columns and unique columns are returned , the primary key columns are used as the primary key columns for the 如果既返回了主键列又返回了唯一列，则主键列用作
For performance or design reasons , tables in a data source may not have explicitly defined primary key columns 出于性能或设计方面的原因，数据源中的表可能没有显式定义的主键列。
The foreign key column name in the source table is the same as the destination table name concatenated with the primary key column name 源表中的外键列名为目标表名加上主键列名。
Property to automatically create a sort order , in ascending order , based on the primary key column or columns of the table 属性自动以升序创建基于表的一个或多个主键列的排序顺序。
