We can represent this hierarchical relationship in the database through standard relationalmethods or using new data types.
我们可以通过标准的关系方法或使用新的数据类型,在数据库中表示该层次结构关系。
2
The atom data can be queried with traditional relationalmethods, which for non-hierarchical data is more efficient than XML navigation.
原子数据可以用传统的关系型方法进行查询,而对于非层次数据,这要比 XML 导航更为有效。
3
The relationalmethods about parts and system parameters are given in detail. Finally, iris recognition contrast experimentation using the system was introduced.