On Wed, May 04, 2005 at 04:39:27PM -0300, Roni Warken wrote: > Right Pawel! If I get the current value, my DB could crash in the next > insertion. > > What about the trigger? Where do I get some examples to practice?but It all depends on your needs :) To save data integrity, you have at least three basic solutions: a) put all queries into transaction. If someting fails in next step, first insert will be canceled, b) write a stored procedure (containing all necessary queries) in a database side, and call this proc in your application, c) create trigger on table - if your second query doesn't need extra parameters coming from application. Samples for a) and b) are in the documentation / examples in postgres package. You have to choose a procedural language first (PHP is available). -- Paweł Bernat; uselessness' lover; select'<asm'||chr(64)||'asm'||'.'||'flynet'||chr(46)||'pl>'as email; Slowly and surely the unix crept up on the Nintendo user ...
