Re: Troubles with joining tables

2003-03-02 Thread Seth Price
er chunk. I am trying to design it well enough though that we could in the future use all of the Landsat imagery for the entire U.S. (also 6km x 6km chunks at 30m resolution). There are about 90 different possible statistics per landscape. Thx, Seth On Sunday, March 2, 2003, at 06:31 PM, Bruce Feist

Troubles with joining tables (cont)

2003-03-02 Thread Seth Price
) SELECT AVG(column1), FROM table1 LEFT JOIN temp ON temp.xy=table1.xy WHERE AND temp.xy IS NOT NULL; (maximum of 20k rows, less after both WHERE statements tho) Does this sound like the best way to accomplish this? Any suggestions? Thx, Seth On Sunday, March 2, 2003, at 03:41 PM, Seth Price

Troubles with joining tables

2003-03-02 Thread Seth Price
Hi list, I am sure that there is an efficient way to do this in SQL, I just can't figure out what it is. I am dealing with two tables. One, I'll call table1 has about 90 columns and 20k rows, each number in column "xy" is unique. The other has about 90 columns and about 200k rows, and there wil

Re: Maximum of 16 indexes per table

2003-02-11 Thread Seth Price
nough for now, but in the future I may have approx. 3,500k rows, so I am a little more worried about my SELECT performance then. ~Seth On Tuesday, February 11, 2003, at 12:54 PM, Peter Grigor wrote: - Original Message - From: "Seth Price" <[EMAIL PROTECTED]> To: <

Re: Maximum of 16 indexes per table

2003-02-11 Thread Seth Price
Has the maximum number of keys in a MyISAM table been tested more since this post? Is it possible to get above 64 keys? (I'm going for 90, btw) ~Seth to get past spam filter: MySQL sql query Subject: Re: Maximum of 16 indexes per table From: Michael Widenius Date: Fri, 30 Jul 1999 23:57:19 +0300