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Schema for sharing relational database types
| Details |
Inventors: Sluiman, Harm;
Assignee: International Business Machines Corporation (Armonk, NY)
Primary Examiner: Cottingham; John
Assistant Examiner: Le; Miranda
Attorney, Agent or Firm: Rogitz; John L.
A schema for storing the meta data that describes relational databases. Advantageously, the schema can be used in both database vendor environments and toolkit vendor environments, thereby facilitating the sharing of relational database types. In addition, by describing the schema in a standard modeling language, even among multiple implementations of storage systems designed according to the schema, the conceptual structure and understanding of each storage system can be the same. |
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DETAILED DESCRIPTION A schema is described for storing the meta data that describes relational databases.
Advantageously, the schema can be used in both database vendor environments and toolkit vendor environments, thereby facilitating the sharing of relational database types.
In addition, by describing the schema in a standard modeling language, even among multiple implementations of storage systems designed according to the schema, the conceptual structure and understanding of each storage system can be the same.
In a preferred embodiment, the schema is implemented using the Unified Modeling Language (UML).
In accordance with an aspect of the present invention there is provided a schema for storing meta data that describes a relational database.
The schema includes an abstract class for defining a data type of a member.
The abstract class includes a property for indicating a generic Structured Query Language data type for the member, a property for indicating a database-specific data type name for the member and a method for constructing an object instantiated from a class derived from the abstract class.
In accordance with another aspect of the present invention there is provided a storage system in a database catalog.
The storage system includes an object of a class derived from an abstract class for defining a data type of a member.
The abstract class includes a property for indicating a generic Structured Query Language data type for the member, a property for indicating a database-specific data type name for the member and a method for constructing an object instantiated from a class derived from the abstract class.
In accordance with a further aspect of the present invention there is provided an object-oriented description of a relational database.
The object-oriented description includes an object for describing a type of a member in the relational database, the object instantiated from a class derived from an abstract class for defining a data type of a member, the abstract class includes a property for indicating a generic Structured Query Language data type for the member, a property for indicating a database-specific data type name for the member, a method for constructing an object instantiated from a class derived from the abstract class
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File Sharing 
