It hasn't been made part the addon yet. So just save it from the wiki page to data/jdb folder.
> From: Alex Rufon <[EMAIL PROTECTED]> > > Hi Oleg/Everybody, > > The latest version of JDB in the package manager is 1.0.3. > > In your wiki page, you wrote that the browser can be loaded this way: > load 'data/jdb/browser' > > I don't know if the problem is with my local addons copy but the browser > script does not exist in the JDB location. I had to manually download > browser.ijs from the wiki page to addons/data/jdb. > > Is this true for everyone or I fubar'd my local copy? > > r/Alex > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Oleg Kobchenko > Sent: Friday, September 19, 2008 6:01 AM > To: Programming forum > Subject: [Jprogramming] JDB - subsetting result > > I published the JDB browser > http://www.jsoftware.com/jwiki/JDB/Browser > > 1. Is the method there of transforming Read into boxed > table optimal for using with Grid? > > 2. I think it would be good for such visual applications, > browsing etc to have the ability to subset the result. > Given a query result, but without returning it in full, > there are such features of interest: > > * provide total number of rows in the result > * return a contiguous subset given rowstart and rowcount > * return every i-th row > * return rows given arbitrary indices > > The first two are for pagination and virtual Grid. > > The last two are good for preview-detail graphical > applications such as lens-and-chart > http://www.jsoftware.com/jwiki/Addons/media/wav#viewer > > QDB solves this providing pseudo-column i as the result > row index, so you can say "where i>20,i<40" etc. > > In JDB it could be a left argument to Read-family verbs, > or separate verb(s). The idea is that there is Readr index, > on which this subsetting can operate, before it is embodied > with select columns. > > > > > From: Chris Burke > > > > The new JDB addon is an efficient relational database written in J, > see: > > http://www.jsoftware.com/jwiki/JDB . > > > > ... > > > > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
