> -----Original Message----- > From: Roger Baklund [mailto:[EMAIL PROTECTED] > Sent: 03 December 2004 16:03 > To: [EMAIL PROTECTED] > Cc: James Nunnerley > Subject: Re: sum queries > > James Nunnerley wrote: > > I'm trying to create a table, and ultimately a graph, out of some syslog > > data. > > > > > > > > I have a table with the following info in it: > > > > Time (unixtime stamp), bytes rcvd and bytes sent > > > > > > > > I want to create a sql statement that group the data over a certain > period > > of time, and produces the following table: > > You don't tell us what this "certain period" is, in general you use date > & time functions to manipulate time. If your period was one hour, you > could use something like this:
Apologies, I was hoping that the time period would be "dynamic", as it's being called from a php script, which might choose an overall period of 7 days, split into 3 hour periods, or 24 hours, split into half hour periods. > > select date_format(ts,"%Y-%m-%d %H") period,sum(rcvd),sum(sent) > from mytable > group by period; So the below query above will allow me to group by hour - which is quite useful - is there anyway of grouping by say 3 hour periods? Thanks James > > <URL: http://dev.mysql.com/doc/mysql/en/Date_and_time_functions.html > > > -- > Roger > -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED]
