Driver query and substitution for format independent native data access
November 22, 2015. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesApparatus and method of distributing documents to remote terminals with different formats Join operation processing system in distributed data base management system Encoding-format-desensitized methods and means for interchanging electronic document as appearances Method and apparatus for accessing a relational database without exiting an object-oriented environment Integration of data between typed data structures by mutual direct invocation between data managers corresponding to data types Data processor that customizes program behavior by using a resource retrieval capability 5416917 Interface for providing access to external data sources/sinks Dynamic device matching using driver candidate lists Patent #: 5630076 InventorAssigneeApplicationNo. 561740 filed on 11/22/1995US Classes:707/7, Sorting707/1, DATABASE OR FILE ACCESSING719/321, DEVICE DRIVER COMMUNICATION719/328, APPLICATION PROGRAM INTERFACE (API)719/331DYNAMIC LINKING, LATE BINDINGExaminersPrimary: Lintz, Paul R.Attorney, Agent or FirmInternational ClassG06F 017/30AbstractA data access system of the present invention includes an interface (client), a data engine having a common application programming interface layer, and data drivers. Through the drivers, the data engine (responding to client requests) accesses foreign data objects, which may include information tables, files, and other data objects of a foreign format. In this manner, the system provides a virtual interface between a client (e.g., database manager) and individual foreign data objects (e.g., database files). Regardless of the format of the individual database files, all files can be shared without the need to make copies.Other References
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