On Mon, 16 Apr 2007, Pete Cap wrote: > Folks, > > I'm writing a gui wrapper around RODBC (having abandoned RMySQL) and > some custom analysis scripts. I'm hoping that I could get some advice. > > All of my users will have access to a database server. I am going to > limit their access to certain databases--a sizeable warehouse in a SAN, > and then smaller storage that they can use for temp files and personal > tables. I want to present these to the user using a tktree widget, > rather like you might see in Enterprise Guide, with the top level of > each tree being a specific database and branches being tables. > > Can I get some advice on a good way to accomplish this? > > Right now I can create and connect to a DSN that does not specify a > database. I suppose that upon connection I could use sqlQuery to get > the names of databases and their tables, then use the result to populate > the tree. However, once a table has been selected, would I need to > create a new connection (since the existing connection does not specify > a database) or could I use the existing one for everything and just > specify database and table in my queries?
You could, but then your tables would all need to accessed via db.table names (assuming your DBMS supports that). Opening a new connection is cheap (and will be cheaper in RODBC 1.2.z) so I would just do that. > > Also, any additional advice on would be appreciated if anyone has any. > > Thanks, > > Pete > > > --------------------------------- > > > [[alternative HTML version deleted]] > > ______________________________________________ > [email protected] mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. > -- Brian D. Ripley, [EMAIL PROTECTED] Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272866 (PA) Oxford OX1 3TG, UK Fax: +44 1865 272595 ______________________________________________ [email protected] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
