I have a table that includes a date and a scale reading like date scale_reading 2007-08-01 150 2007-08-02 125
these reading may or may not be taken everyday. I need to develop a query that will subtract the scale reading on one day from the scale reading on the next most recent reading. any ideas? cj -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED]
