I agree totally, are we not dicussing speed issues all the time? and then we recommend a code doing an unessesary job on every call? an ANSI selct db in the sql forces any database to run the internal select db because there would be no check if the databse is the current one. because, databasedevelopers can espext some smartness of us, the programmers. its a lot off stuff to do for the database to select a database. for shure, the database leafs that IN OUR hand to avoid to force time consuming server resources. ralph ralph_deffke@xxxxxxxx "Colin Guthrie" <gmane@xxxxxxxxxxxxxx> wrote in message news:h5ug1h$tjb$1@xxxxxxxxxxxxxxxx > 'Twas brillig, and Jay Blanchard at 12/08/09 13:53 did gyre and gimble: > > Jay Blanchard wrote: > >> SELECT a.foo, a.bar > >> FROM myDatabase.myTable a > >> WHERE you set other conditions here > >> > >> All that is required is that you establish a connection to a server. > > > > If I recall correctly, this will cause issues with replication in > > MySQL... insofar as you perform amodifying query. > > [/snip] > > > > You're correct with regards to queries that modify on replicated > > systems. If all you're doing is gathering data then this will work just > > fine, is somewhat self-documenting (especially in lengthier code > > containers), and very flexible. It also leaves the selection in the > > database's hands, and as we almost always say, "let the database do the > > work when it can". > > I'm interested to know why you consider this to be very flexible and how > this leaves the selection in the database's hands? > > If I were to implement this and they try some destructive testing/demo > on a sacrificial database, I'd have to use a whole other server instance > (as all the queries would hardcode in the db name). > > Is it not more flexible if you omit the table name in every single query > and specify it once in your bootstrap/connection code? Thus doing tests > on other dbs etc. is a pretty simple switch of the connection code. > > Also telling the db engine what database you want to use in every query > is not, IMO, leaving the selection in the the database's hands. > > Just curious as to the rationale here :) > > Col > > > > > -- > > Colin Guthrie > gmane(at)colin.guthr.ie > http://colin.guthr.ie/ > > Day Job: > Tribalogic Limited [http://www.tribalogic.net/] > Open Source: > Mandriva Linux Contributor [http://www.mandriva.com/] > PulseAudio Hacker [http://www.pulseaudio.org/] > Trac Hacker [http://trac.edgewall.org/] > -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
