Using serialized file organizes graph data, and using relation database manage property data and linking data of graph and property data.

即图形数据由序列化的文件管理，属性数据及图形和属性数据的连接数据采用关系数据库管理。

youdao

For the historical reasons, corporate data are commonly kept in the forms of file, relation database and document database, etc.

由于历史的原因，企业数据一般由文件、关系型数据库、文档型数据库等构成。

youdao

The data produced in makeup process of the technique file and the transferring data in the technique resources base are saved in user database, and eight databases are set up with the relation type.

前者可存放工艺文件编制过程中所产生数据及工艺资源库中的调用数据，采用关系型，建立八个数据库。

youdao