----- Original Message ----- From: "Bruce Levick" <bruce@vivamotion.com> To: <php-db@lists.php.net> Sent: Friday, April 18, 2003 6:52 AM Subject: SELECT FROM ALL TABLES > Hi Guys, > Am having a little trouble with selecting a certain piece of data from all > tables and then displaying the results. > > I have 5 tables (Concepts, Illustrations, ID, Photos, Misc). All tables have > a column named (itemMonth). Which is simply a month of the year (any month). > I am trying to display the results of a SELECT query where itemMonth = > 'April'. But can't for the life of me get the results from all the tables to > display from one SELECT query. > > So for example the display might look something like this. > > Here are all the new works from April (Concepts, Illustrations, ID, Photos, > Misc) > Concepts 1 > Concepts 2 > Concepts 3 > Illustraion 1 > ID 1 > Photos 1 > Misc 1 > Misc 2 > > > There could be any number of results from either of the tables. Obviously > only after results where itemMonth = 'April'. > Uhm First question is how much data are you going be pulling from these tables? a 100 records, a 1,000, 10,000 or more? Joins can be costly on a database server in terms of raw disk access and cpu time. http://www.w3schools.com/sql/sql_join.asp read the examples and use the particular join that would fit your data requirements > I have tried many combinations to get this to work. I don't think the > solution is to produce a select query for each table, that seems a bit code > heavy. > > Sorry if I am missing something obvious....am a little tired. > > Bruce > > > > > > -- > PHP Database Mailing List (http://www.php.net/) > To unsubscribe, visit: http://www.php.net/unsub.php > ---- Tyler Lane tlane@lyrical.net -- PHP Database Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
