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On 02 Aug 2013 07:20, Buck Calabro wrote:
<<SNIP>> Data access security is hard coded in the programs
(users X, Y and Z can access region 3 but not region 1; all data
in the same tables. OS security doesn't help here. <<SNIP>>
I understand that the statements are based upon the implication that
an application already had been designed as the sole means to implement
access [possibly directly to the physical file], but...
I just want to clarify... that the OS security _can_ be used, with
the database via logical views of the data and authorities to both the
physical data file and the logical file, to accomplish exactly that
[certain users access to specific data], without having to instead use
an application to control access; i.e. all accesses, irrespective of the
application that is being used [while not adopting excessive
authorities], can be prevented from undesirable access to the data in
the files.
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