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[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: Jim Gray article on Next Generation Databases
 Jonathan Robie wrote: > Perhaps I'm reading too much into this, but in Gray's article, the > vision does not seem to include a middle tier. The database becomes > the center of the universe, and pretty much everything we associate > with the middle tier becomes part of the database. The database also > takes on some of the functionality traditionally associated with an > operating system. > > How likely is this? Do users want that level of centralization? > > Jonathan Well one part of the vision won't fly at all as far as I can see. That is the idea that file systems should be subsumed by databases. The trouble with this is that people *need* to be able to take a disk from one dead machine and plug it into a living machine and access that data, as you can do with file systems. The more difficult this becomes (e.g. if the binary format for the database is not fixed readable between different versions of the OS) then the less practical it becomes. (This is a different issue to backups: people use backups when data storage fails, and they use disktransplants when motherboards fail or are superceded.) So just giving a virtual FAT32 or whatever as a compatability mode doesn't seem sellable: the DBMS stuff needs to be tacked on as a layer above the file system, which isn't very satisfactory. Cheers Rick Jelliffe 
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