In relational database,the problem of semantic ambiguity always happens to the intermediate nodes in tree structure of multilayer one-to-many entity relationship.This paper proposes a model of tree structure super entity,discusses the concepts,data structure,join query method and tree view construction algorithm of the super entity,and analyzes the time and space complexity of the algorithms.On the basis of the proposed component model,a tree structure super entity component and a1/K switch connection compo...