I am not an expert on Oracle Apps, but those "session environment variables" are probably application context attributes I mentioned earlier. They can also be implemented by a package global variable; but there is no security in that; the user will be able to set the variable in anyway he wants. Yes, it is better from the performance point, too.
Arup Nanda ----- Original Message ----- To: "Multiple recipients of list ORACLE-L" <[EMAIL PROTECTED]> Sent: Sunday, July 27, 2003 4:19 PM > Hi! > > This is probably too kludgy or simple-minded, or non-maintainable, but is > it technically possible? > > > > 1) Create a series of views that subset > > the actual tables, according to the rules > > you've got about who the viewer is & what > > year(s) they've selected in the Users table. > > > > 2) Redefine the public synonyms so that they > > point to your views rather than the base > > tables. > > Oracle Apps actually works that way, that a user gets assigned an > organization id org_id when he logs on (not using trigger, from client side > instead) and uses views which restrict queries & dml by org_id. This is > based on session environment variables, I believe it's better in performance > point of view, if we would have to scan a "privileges" table during every > select on any table, it could become the bottleneck... > > Tanel. > > > -- > Please see the official ORACLE-L FAQ: http://www.orafaq.net > -- > Author: Tanel Poder > INET: [EMAIL PROTECTED] > > Fat City Network Services -- 858-538-5051 http://www.fatcity.com > San Diego, California -- Mailing list and web hosting services > --------------------------------------------------------------------- > To REMOVE yourself from this mailing list, send an E-Mail message > to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in > the message BODY, include a line containing: UNSUB ORACLE-L > (or the name of mailing list you want to be removed from). You may > also send the HELP command for other information (like subscribing). > -- Please see the official ORACLE-L FAQ: http://www.orafaq.net -- Author: Arup Nanda INET: [EMAIL PROTECTED] Fat City Network Services -- 858-538-5051 http://www.fatcity.com San Diego, California -- Mailing list and web hosting services --------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
