Access control in a relational data base management system by query modification | Zendy

Michael Stonebraker | Zendy; Eugene Wong | Zendy

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Access control in a relational data base management system by query modification

Author(s) -

Michael Stonebraker,

Eugene Wong

Publication year - 1974

Publication title -

citeseer x (the pennsylvania state university)

Language(s) - English

Resource type - Conference proceedings

DOI - 10.1145/800182.810400

Subject(s) - computer science , relational database , base (topology) , relational database management system , graphics , scheme (mathematics) , database , data management , management system , access control , relational model , knowledge base , control (management) , information retrieval , world wide web , operating system , engineering , artificial intelligence , mathematical analysis , operations management , mathematics

This work describes the access control system being implemented in INGRES (INteractive Graphics and REtrieval System). The scheme can be applied to any relational data base management system and has several advantages over other suggested schemes. These include: a) implementation easeb) small execution time overheadc) powerful and flexible controlsd) conceptual simplicityThe basic idea utilized is that a user interaction with the data base is modified to an alternate form which is guaranteed to have no access violations. This modification takes place in a high level interaction language. Hence, the processing of a resulting interaction can be accomplished with no further regard for protection. In particular, any procedure calls in the access paths for control purposes, such as in [1,2], are avoided.

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