Re: [PHP-DB] Efficient way to count rows when using GROUP BY

2005-06-26 Thread Micah Stevens
If you don't want a group count, but want a total row count instead, there's no reason to have the group by statement, If you're trying to have a conglomerate result, where one column is always equal to the total count, wouldn't it be more efficient to have a seperate query for that? -Micah

Re: [PHP-DB] Efficient way to count rows when using GROUP BY

2005-06-26 Thread Martín Marqués
El Dom 26 Jun 2005 07:39, Ross Honniball escribió: Hi All, I use SELECT COUNT(*) FROM whatever WHERE whatever to determine how many rows a particular query will return (then use this count to assist with pagination). The problem is that this does not work if the query contains a

Re: [PHP-DB] Efficient way to count rows when using GROUP BY

2005-06-26 Thread Ross Honniball
It worked! SELECT COUNT(*) FROM (SELECT COUNT(*) FROM ad.off_enrol GROUP BY jcu_campus, sub_code) t1 Thank you list -:) Martín Marqués wrote: El Dom 26 Jun 2005 07:39, Ross Honniball escribió: Hi All, I use SELECT COUNT(*) FROM whatever WHERE whatever to determine how many rows a