-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Aldrik KLEBER wrote: >> ~ provides ACID properties to multiple users of a single database >> node > > Excuse me for my ignorance but .... What do you call ACID properties ? > >
If I recall correctly, it's an acronym that stands for "Atomicity, Consistency, Isolation, Durability". It's a useful set of properties of many DBMSes (like Oracle, for example), in which you have atomic transactions that can be rolled back if aren't executed until the end correctly; transactions don't get one in each other's way, and once a transaction has been done, it cannot be deleted from history (logs always remain), and this protects you also against system failures (because logs can be replayed). The main goal is to ensure data integrity, among other things. I guess journaled filesystems also borrowed the idea. Regards, - -- Matteo Settenvini FSF Associated Member Email : [EMAIL PROTECTED] - -----BEGIN GEEK CODE BLOCK----- Version: 3.12 GCS d--(-) s+:- a-- C++ UL+++ P?>++ L+++>$ E+>+++ W+++ N++ o? w--- O- M++ PS++ PE- Y+>++ PGP+++ t+ 5 X- R tv-- b+++ DI+ D++ G++ e h+ r-- y? - ------END GEEK CODE BLOCK------ -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2.2 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFESAc4UDehq0srSdYRAtqLAJwJGIh2T2d41awtrszD8Yu16rnkVwCgq6O4 Pb8L1uoclNnskqtJnq7+K1k= =oh1w -----END PGP SIGNATURE----- _______________________________________________ Gnu-arch-users mailing list [email protected] http://lists.gnu.org/mailman/listinfo/gnu-arch-users GNU arch home page: http://savannah.gnu.org/projects/gnu-arch/
