On 2 Mar 2007 01:17:33 -0800, Lars Gregersen <[EMAIL PROTECTED]> wrote:
I have a table that contains historical exchange rates:
date_time | timestamp
xrate | real
There is a maximum of one entry per day, but data are missing on
weekends and holidays. For these missing dates I must use the va
I have a table that contains historical exchange rates:
date_time | timestamp
xrate | real
There is a maximum of one entry per day, but data are missing on
weekends and holidays. For these missing dates I must use the value
from the previous day (e.g. since data for a Sunday is missing I must