Methods of Relational Modeling of Hierarchical Structures of Data
Keywords:
Hierarchical Data Structures, Relational DatabasesAbstract
Data of various subject domains often have hierarchical relations. Relational databases are the most reliable way of information storage so far. The relational way of modeling per se does not support hierarchical types of data. Prevalence of hierarchical structures in problems of automation substantiates relevance for searching ways of effective display of treelike data in a relational model. The paper considers methods of representation of hierarchical structures in relational databases as well as standard requests to these storage structures. There have been described criteria of quantitative assessment of storage methods and their comparative characteristics.