vb.org Archive - Pulling a specific number of threads from each forum.. can it be done in one query?

vb.org Archive (https://vborg.vbsupport.ru/index.php)

- vB3 Programming Discussions (https://vborg.vbsupport.ru/forumdisplay.php?f=15)

- - Pulling a specific number of threads from each forum.. can it be done in one query? (https://vborg.vbsupport.ru/showthread.php?t=63930)

djnoz

04-15-2004 11:43 PM

Pulling a specific number of threads from each forum.. can it be done in one query?

What I need to do, is write a query that pulls the latest 4 threadids out of a specified list of forumids individually.

So basically, if I was specifying forumids 1 and 2, the query would display two lists of the four latest threadids from those forums.

The output at the mysql console would look something like this

Code:

Forumid        |Threadid

1        |12

1        |11

1        |9

1        |7



2        |13

2        |10

2        |8

2        |6

Is this possible, or must I run multiple queries?

Thanks :)

Velocd

04-17-2004 04:30 AM

PHP Code:


		
			
SELECT * 

FROM thread 

WHERE forumid IN ($forumid_list) 

ORDER BY dateline 

LIMIT 4

This is what you need, if I understood you correctly.

djnoz

04-17-2004 05:56 AM

The problem with that query is that I want the 4 latest threads from each forum... that query takes the 4 latest threads aggregated together from both forums.

If two forums are specified, the query should return 8 values - 4 threads from the first forum, and 4 threads from the second forum. I haven't been able to figure out how to do this without running a seperate query for each forum.

Thanks for the reply anyway. ;)

All times are GMT. The time now is 11:00 AM.

X vBulletin 3.8.12 by vBS Debug Information
Page Generation 0.01354 seconds Memory Usage 1,711KB Queries Executed 10 (?)
More Information
Template Usage: (1)ad_footer_end (1)ad_footer_start (1)ad_header_end (1)ad_header_logo (1)ad_navbar_below (1)bbcode_code_printable (1)bbcode_php_printable (1)footer (1)gobutton (1)header (1)headinclude (6)option (1)post_thanks_navbar_search (1)printthread (3)printthreadbit (1)spacer_close (1)spacer_open Phrase Groups Available: global postbit showthread	Included Files: ./printthread.php ./global.php ./includes/init.php ./includes/class_core.php ./includes/config.php ./includes/functions.php ./includes/class_hook.php ./includes/modsystem_functions.php ./includes/class_bbcode_alt.php ./includes/class_bbcode.php ./includes/functions_bigthree.php Hooks Called: init_startup init_startup_session_setup_start init_startup_session_setup_complete cache_permissions fetch_threadinfo_query fetch_threadinfo fetch_foruminfo style_fetch cache_templates global_start parse_templates global_setup_complete printthread_start bbcode_fetch_tags bbcode_create bbcode_parse_start bbcode_parse_complete_precache bbcode_parse_complete printthread_post printthread_complete
Messages: