Data processing: database and file management or data structures – Database design – Data structure types
Reexamination Certificate
2007-05-08
2007-05-08
Gaffin, Jeffrey (Department: 2161)
Data processing: database and file management or data structures
Database design
Data structure types
C707S793000, C707S793000
Reexamination Certificate
active
10407387
ABSTRACT:
A system and method are provided for an information management system (IMS) having an underlying relational database management system (RDBMS) that allows applications to access the RDBMS directly for improved performance without going through the IMS, while maintaining access control. An access control list (ACL) is generated, with tables in the RDBMS being bound using codes in the ACL. At run time or, more preferably, pre-run time, user-defined functions (UDF) evaluate access control attributes and generate an access authorization table, which is joined with the appropriate information table(s) in response to a query against a view on the table. The view is presented to the querying user. Thus, access control rules are encapsulated in the view that is presented to the user.
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The ACM digital Library,“Extensible access control for a hierarchy of servers”, Jul. 1994, ACM Press, vol. 28, Issue 3.
Gaffin Jeffrey
International Business Machines - Corporation
Nguyen Cam-Linh
Rogitz John L.
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