On Feb 23, 2009, at 3:54 PM, P Kishor wrote: > On Mon, Feb 23, 2009 at 2:46 PM, D. Richard Hipp <d...@hwaci.com> > wrote: >> > .. >> >> SQLite is, in fact, a TCL extension that escaped into the wild. It >> is >> specifically designed to integrate well with Tcl/Tk. >> > .. > > Did you ever tell that story anywhere? Would be fun to read it.
The story goes like this: I was working on a big Tcl/Tk+C app. (The problem to be solved was interesting in its own right. It turned out to be NP complete - equivalent to subgraph homomorphism. But the customer wasn't interested in "why not" - they just wanted a solution. We found some good heuristics, but that is another story...) The application was highly graphical (made extensive use of the Tcl/Tk canvas widget) and had to run on legacy hardware. HPUX. C code to do the heavy computation. Tcl/Tk for control and display. Data from an Informix database. Worked really well. But.... Every so often the operators would power-cycle the HPUX machine. And when this happened, the Informix database server would not reboot successfully all the time. When it did not, and the operators double-clicked on my application, it (obviously) failed with a message: "Cannot connect to database server". This was not my fault. But because my application painted the error dialog, I'm the one who had to take the support call. Not a good situation. So I thought.... what if there was a database engine that would read and write directly to the disk without going through a server. Then if the machine was healthy enough to bring up X11, I'd never have problems accessing the database. SQLite 1.0 was born shortly thereafter. > > > -- > Puneet Kishor http://www.punkish.org/ > Nelson Institute for Environmental Studies http://www.nelson.wisc.edu/ > Open Source Geospatial Foundation (OSGeo) http://www.osgeo.org/ > _______________________________________________ > sqlite-users mailing list > sqlite-users@sqlite.org > http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users D. Richard Hipp d...@hwaci.com _______________________________________________ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
