DBI202Xuất hiện trong 1 đề thi
What is the hierarchical data model?
Các lựa chọn
AA hierarchical data model is a data model in which the data is organized into a tree-like structure
BA hierarchical data model is a data model in which the data is organized into a table-like structure
CA hierarchical data model is a data model in which the data is organized into a graph-like structure
DNone of the others