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

Michael Stonebraker, Eugene Wong
1974 Proceedings of the 1974 annual conference on - ACM 74  
This work describes the access control system being implemented in INGRES (l__N_Nteractive Graphics and REtrieval S~stem). The scheme can be applied to any relational data base management system and has several advantages over other suggested schemes. These include: a) implementation ease b) small execution time overhead c) powerful and flexible controls d) conceptual simplicity The basic idea utilized is that a user interaction with the data base is modified to an alternate form which is
more » ... 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.
doi:10.1145/800182.810400 dblp:conf/acm/StonebrakerW74 fatcat:i6kmrxkckvax5gxhbbaamszucy