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 Bin Packing Problem

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Page47
Master Smack Fu Yak Hacker

2878 Posts

Posted - 2002-09-05 : 10:45:51
Does anyone have a link to, or care to share, a SQL solution to the classic bin packing problem. I'd love to see a comparison of the various packing algorithms (First Fit, Last Fit, Next Fit, Best Fit, Worst Fit, Almost Worst Fit).

Jay White
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robvolk
Most Valuable Yak

15732 Posts

Posted - 2002-09-05 : 11:01:02
Take a look at Joe Celko's column if you haven't already:

http://www.intelligententerprise.com/authors/search_Celko.shtml

Also check the DBMS archives, I'm pretty sure he's touched this one in the past. It might also be in his SQL Puzzles and Answers book.

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Page47
Master Smack Fu Yak Hacker

2878 Posts

Posted - 2002-09-05 : 14:23:59
I couldn't find anything. Can anyone tell me which Celko book (or other resource) covers this? A quick look through the table of contents here doesn't lead me to think its in the 'Smarties' book ...

Jay White
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robvolk
Most Valuable Yak

15732 Posts

Posted - 2002-09-05 : 14:44:06
It's not in Smarties (I checked my copy), but this one:

http://www.amazon.com/exec/obidos/tg/detail/-/1558604537/qid=1031251390/sr=1-2/ref=sr_1_2/104-4805330-3335129?v=glance&s=books

Might have it. If not, it's a good resource anyway.

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Page47
Master Smack Fu Yak Hacker

2878 Posts

Posted - 2002-09-05 : 14:55:39
It's hard to tell from the TOC ... maybe I'll just buy it ...

Jay White
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robvolk
Most Valuable Yak

15732 Posts

Posted - 2002-09-16 : 18:07:35
I got it, and oh my, it is totally worth it...

BTW, what about Joe's article here:

http://www.dbmsmag.com/9808d06.html

He gives it another name, but it's essentially a bin packing article.

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Lavos
Posting Yak Master

200 Posts

Posted - 2002-09-19 : 02:04:29
It's not covered in depth, but in section 17.5 of Smarties Celko covers Dr. Codd's T-Join operator, using an example of putting groups of students into rooms of limited size. It has a few interesting things, hitting on a couple of ways to do best fit/first fit. I think he Might hit worst fit, but if so only in passing.

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