Hello, Let me start by saying using SQLite in Tcl is a real pleasure!
I am having a problem determining when to use $ and when to use @ (and maybe I should use :, but I haven't tried it). I have three tables: terrain(x,y), detail(id integer primary key autoincrement, x, y), and units(id ipka, detailId foreign) (there are other fields but they are all untyped and not used for anything but filtering and retrieval). I started using $ everywhere, but sometimes had problems where I needed a layer of [subst] before calling eval. Then, I converted everything to @, but then some queries wouldn't match. I needed to replace = with like, or insert casts. Right now, I have a mix of @ and $. I use @ for inserts and matches on most fields. I use $ to match detail.id and units.id. Comparing detail.id and units.detailId requires a cast (because I insert into units.detailId with @). Also, I seem to be unable to match columns to string constants (I guess, because everything is a blob). It seems to be related to the "impedance mismatch" mentioned on the Tcl wiki. Is there some document that describes a best known method for dealing with all this? Thanks! Ned _______________________________________________ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
