Computer system for modeling semantic objects from database schemas existing relational data.

摘要

A computer system to create an object model SEMANTIC SCHEME FROM A RELATIONAL DATABASE EXISTS. The computer system analyzes the catalog information database schema and relational CREATE A semantic object for each table defined in the catalog. For each column defined with a table, ADDS VALUE SIMPLE an attribute of the semantic object created for the table. AFTER ANALYZING THE SYSTEM RELATIONS INFORMATION STORED IN THE CATALOG TO CREATE OBJECT ATTRIBUTES THAT DEFINE LINK RELATIONSHIPS BETWEEN TWO OR MORE semantic objects and create multivalued ATTRIBUTES GROUP AND SIMPLE ATTRIBUTES VALUE multivalued. IF THE CATALOG OF THE DATABASE DOES NOT INCLUDE relational information, it asks the user to enter RELATED SEMANTIC OBJECTS.