Method and apparatus for functional integration of metadata

摘要

A computer implemented method for functional integration of metadata for a plurality of databases, includes: creating a single set of classes and instances for the classes for metadata of at least one relational data schema and at least one non-relational data schema for the plurality of databases; defining semantic relationships between the instances based on the structural information in the relational data schema and the non-relational data schema for the plurality of databases; associating the semantic relationships with a property class; creating a single set of triples for the semantic relationships between the instances; storing the single set of triples in a file; and using the set of triples stored in the file to navigate between the plurality of databases to formulate a response to a query.

主权项

1. A computer implemented method for functional integration of metadata for a plurality of databases, comprising:
creating a single set of classes and instances for the classes for metadata of at least one relational data schema and at least one non-relational data schema for the plurality of databases, wherein the single set of classes comprises first classes for the metadata and second classes for the instances of the first classes; creating a single set of semantic relationships between the instances of the first classes and the second classes based on structural information in the relational data schema and the non-relational data schema; creating a single set of triples for the semantic relationships between the instances of the first classes and the second classes; and storing the single set of triples in a single file; wherein the creating the single set of the semantic relationships between the instances of the first classes and the second classes based on the structural information in the relational data schema and the non-relational data schema comprises: defining the semantic relationships between the instances of the first classes and the second classes based on the structural information in the relational data schema and the non-relational data schema for the plurality of databases; creating a first set of triples for the semantic relationships for the at least one relational data schema, wherein a range of one of the first set of triples links to a domain of another of the first set of triples forming a first chain of triples; creating a second set triples for the semantic relationships for the non-relational data schema, wherein a range of one of the second set of triples links to a domain of another of the second set of triples forming a second chain of triples; and wherein the first chain and the second chain comprise matching attribute values.