This strikes me as best solved in the programming language. If a single set of data points is being acquired in real time, and you have a programming language (or script) generating the INSERT commands, why not simply keep the most recently inserted temperature in a variable ?
On the other hand, if you have multiple sensors, or out-of-order insertion, or a stateless insertion program, you could insert every reading and before reporting use a 'cleanup' procedure to remove redundant readings. Both the above would be faster than having SQL execute a search every time a new reading is added. _______________________________________________ sqlite-users mailing list sqlite-users@mailinglists.sqlite.org http://mailinglists.sqlite.org/cgi-bin/mailman/listinfo/sqlite-users