Parse the hours column in the result set. Keep track of last hour number
processed.
If a number is missing, then its count can be assumed to be zero.
John Lodge
-Original Message-
From: Almar van Pel [mailto:[EMAIL PROTECTED]]
Sent: Saturday, February 09, 2002 10:55 AM
To: Mysql
Subject:
* DL Neil
> Consider:
> a) add a 'construction' table with the row-values 0 through 11
> (or 23) and use it to do a left join against the
> messages tbl;
> b) if the database is not busy, use perl to fire off 12 (or 24)
> separate queries.
c) use perl to 'fill in the holes', putting zero values i
Hello Almar
> I have a question about a query. We have a guestbook and I want to do some
> statistics for the messages in it. So I've created a query that looks like
> this.
>
> select hour(msg_date_time), count(*)
> from messages
> where user_id = 'almar'
> group by hour(msg_date_time)
>
> It re
* DL Neil
> Consider:
> a) add a 'construction' table with the row-values 0 through 11
> (or 23) and use it to do a left join against the
> messages tbl;
> b) if the database is not busy, use perl to fire off 12 (or 24)
> separate queries.
c) use perl to 'fill in the holes', putting zero values i
Hello Almar
> I have a question about a query. We have a guestbook and I want to do some
> statistics for the messages in it. So I've created a query that looks like
> this.
>
> select hour(msg_date_time), count(*)
> from messages
> where user_id = 'almar'
> group by hour(msg_date_time)
>
> It re