L.A.M.P and selection

binary_dreamer · 06-20-2006, 02:59 AM

hi. i got a task to finish, but i am not sure on how to implement it. the task is:
there is a database of 50 entries (with the option to add/remove entries). those entries will be in three groups ABC. group A will have the first 13, group B the next 13, and group C the rest. i want to have a script that for Monday to Friday will take from group A, one everyday and in serial mode. for weekends it will choose:
Saturday: one from B and one from C
Sunday: one from B and one from C.
any ideas on how to help me on that task?

graemef · 06-20-2006, 03:05 AM

You may want to add a field to your table that will record the last one selected (or if you wish the next one to be selected)
Throw all of the rows for a given group into an array and search the array for the last one, return the next.
Finally update the table to properly reflect the last selected record.

binary_dreamer · 06-20-2006, 05:53 AM

thanks alot for the reply. the problem is that i am kinda confused with the queries i have to make. how do i differentiate the groups between weekdays and the weekends?

graemef · 06-20-2006, 07:13 AM

If the database doesn't hold the group information then it can probably be generated by using limit to get the first and last items, I'm not certain of the exact syntax but you should be able to find it in the manual.

chrism01 · 06-20-2006, 08:07 PM

See this page for various date / day fns: http://dev.mysql.com/doc/refman/4.1/...functions.html

smallville · 06-21-2006, 02:05 AM

use limit 10 for the first 10 then, limit 10, 10 for the next 10 (or limit 11,10)