Re: selecting question

Hmmm... Why do you want two or three tables? Why not just one? tbl.buildings and tbl.building_queue looks identical. Looks like you can merge the two and stick it in tbl.building_info. Just add in tbl.building_info a 'status' column. In that, I'd store say '1' for building in progress, and '2' for finished buildings. ??? -w -- William Fong - wfong@mookandblanchard.com Phone: 626.968.6424 x210 | Fax: 626.968.6877 Wireless #: 805.490.7732 | Wireless E-mail: 8054907732@mobile.att.net ----- Original Message ----- From: "ACEAlex" <alex@saers.com> To: "Rick Emery" <remery@excel.com>; "php-db" <php-db@lists.php.net> Sent: Wednesday, February 20, 2002 12:53 PM Subject: Re: [PHP-DB] selecting question : I could make a rutine in php to make it work but i want to make the : datagrabbing thing in mysql :( : : ----- Original Message ----- : From: "Rick Emery" <remery@excel.com> : To: "'ACEAlex'" <alex@saers.com> : Sent: Wednesday, February 20, 2002 6:25 PM : Subject: RE: [PHP-DB] selecting question : : : > : > I'm still trying to work this. There MUST be an easy answer... : > rick : > : > -----Original Message----- : > From: ACEAlex [mailto:alex@saers.com] : > Sent: Wednesday, February 20, 2002 9:30 AM : > To: Markus Lervik : > Cc: php-db : > Subject: Re: [PHP-DB] selecting question : > : > : > Ok. i think i have to make things clearer :).. Here, is my real mysql : thing. : > I and a friend are trying to make a silly space game and i have problems : > with this query. : > Ok, if i set up a database with this : > : > CREATE TABLE building_info ( : > id int(11) NOT NULL auto_increment, : > name varchar(32) default NULL, : > description text, : > PRIMARY KEY (id) : > ) TYPE=MyISAM; : > INSERT INTO building_info VALUES (1,'Factory','N/A'); : > INSERT INTO building_info VALUES (2,'Smaltvark','N/A'); : > INSERT INTO building_info VALUES (3,'Superfarm','N/A'); : > : > CREATE TABLE buildings ( : > id int(11) NOT NULL auto_increment, : > planet_id int(11) default NULL, : > building_id int(11) default NULL, : > PRIMARY KEY (id) : > ) TYPE=MyISAM; : > : > INSERT INTO buildings VALUES (1,1,1); : > INSERT INTO buildings VALUES (2,2,1); : > INSERT INTO buildings VALUES (3,1,2); : > INSERT INTO buildings VALUES (4,6,1); : > INSERT INTO buildings VALUES (5,6,2); : > : > CREATE TABLE building_queue ( : > id int(11) NOT NULL auto_increment, : > building_id int(11) default NULL, : > planet_id int(11) default NULL, : > PRIMARY KEY (id) : > ) TYPE=MyISAM; : > : > INSERT INTO building_queue VALUES (35,2,2); : > INSERT INTO building_queue VALUES (22,2,7); : > INSERT INTO building_queue VALUES (23,1,3); : > INSERT INTO building_queue VALUES (25,1,5); : > INSERT INTO building_queue VALUES (24,1,5); : > INSERT INTO building_queue VALUES (26,2,5); : > INSERT INTO building_queue VALUES (21,1,7); : > INSERT INTO building_queue VALUES (28,1,4); : > INSERT INTO building_queue VALUES (31,3,3); : > : > where building_info is the description of the building. I have removed : some : > info from it by the way :).. And building_queue is the queue of building : > that is to be built that a planet has. And buildings is the buildings : > actually pressent. : > : > I have another option that says planet_id that specifys the current : planet. : > : > Ok, now i want to make a query that if i ask for planet_id=1 i will get : the : > building_info names of those buildings that are not in the queue and not : > actually built.I cant get this to work :( : > : > For example,. if you load in this data and asks for planet_id=1 you should : > get : > Superfarm : > planet_id=2 should get : > Superfarm : > planet_id=3 should get : > Smaltvark : > : > And so on :) : > : > Thanx again for responding : > : > /Alexander : > : > ----- Original Message ----- : > From: "Markus Lervik" <markus.lervik@vaasa.fi> : > To: "ACEAlex" <alex@saers.com> : > Cc: "php-db" <php-db@lists.php.net> : > Sent: Wednesday, February 20, 2002 2:31 PM : > Subject: Re: [PHP-DB] selecting question : > : > : > > On Wed, 2002-02-20 at 15:03, ACEAlex wrote: : > > : > > > Hi i have trouble with this mysql query. : > > > : > > > OK, i have 3 different tables. : > > > : > > > Tabel 1: building_info : > > > id : > > > name : > > > price : > > > and other : > > > table 2:queue : > > > id : > > > building_id : > > > table 3:buildings_built : > > > building_id : > > > : > > > Ok, now i want to make a query that gets the data from building_info : > where : > > > it is not pressent in the queue and the buildings_built table. : > > > : > > > I have managed to get this to work with only 2 tables. So that i can : get : > the : > > > things that are not present in the building_queue or in the : > buildings_built : > > > : > > > Anyony have a nice solution for this? : > > : > > If I understood right, something like : > > : > > SELECT A.id,A.name,A.price : > > FROM building_info AS A, queue AS B, buildings_built AS C : > > WHERE (A.id != B.id AND B.building_id = C.building_id) : > > : > > should do it. I tested it on a simple db : > > : > > building_info("1","foo","200") : > > building_info("2","bar","200") : > > : > > queue("1","1") : > > : > > buildings_built("1") : > > : > > This is what I got: : > > : > > mysql> SELECT A.id,A.name,A.price FROM building_info AS A, queue AS B, : > > buildings_built AS C WHERE (A.id != B.id AND B.building_id = : > > C.building_id)\G : > > *************************** 1. row *************************** : > > id: 2 : > > name: bar : > > price: 200 : > > 1 row in set (0.00 sec) : > > : > > mysql> : > > : > > : > > : > > Cheers, : > > Markus : > > : > > : > > -- : > > Markus Lervik : > > Linux-administrator with a kungfoo grip : > > Vaasa City Library - Regional Library : > > markus.lervik@vaasa.fi : > > +358-6-325 3589 / +358-40-832 6709 : > > : > > : > > -- : > > PHP Database Mailing List (http://www.php.net/) : > > To unsubscribe, visit: http://www.php.net/unsub.php : > > : > : > : > -- : > PHP Database Mailing List (http://www.php.net/) : > To unsubscribe, visit: http://www.php.net/unsub.php : : : -- : PHP Database Mailing List (http://www.php.net/) : To unsubscribe, visit: http://www.php.net/unsub.php : :