In many cases, the back-end database is actually a mainframe database such as IMS, IBM's mainframe - based hierarchical DBMS.
在很多情况下，后端数据库实际上是大型主机数据库，例如IBM基于大型主机的分层dbmsIMS。
Native XML storage implies storing XML data intact with full DBMS knowledge of the data's internal hierarchical structure.
原生xml存储意味着按原样存储XML数据，DBMS完全了解数据的内部层次结构。
Storing the XML in its native hierarchical format within a hybrid DBMS.
在混合型DBMS中以原有的层次化格式存储XML。
A good algorithm to design such a hierarchical database consists of two steps, first, to describe real world in E-R model and then, convert it to the model supported by the DBMS.
在设计层次型数据库时，一个较好的设计方法是分二步走：首先利用实体联系方法抽象出现实世界的实体联系模型，然后将实体联系模型变换到具体DBMS 所支持的层次型模型。
A good algorithm to design such a hierarchical database consists of two steps, first, to describe real world in E-R model and then, convert it to the model supported by the DBMS.
在设计层次型数据库时，一个较好的设计方法是分二步走：首先利用实体联系方法抽象出现实世界的实体联系模型，然后将实体联系模型变换到具体DBMS 所支持的层次型模型。
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