That would just give me 1994 for all 3 columns of output. What I want to know is how many
calls were longer than 5 seconds, how many were <= 5 seconds, and the total number of
calls.
Cheers,
Rich
> -----Original Message-----
> From: Gelu Gogancea [mailto:ggelu@stripped]
> Sent: Tuesday, September 17, 2002 12:08 PM
> To: Richard Unger; mysql@stripped
> Subject: Re: aggregate functions producing bad data
>
>
> Hi,
> I think you should try to use 0 instead of NULL
>
> Regards,
>
> Gelu
> _____________________________________________________
> G.NET SOFTWARE COMPANY
>
> Permanent e-mail address : gg@stripped
> gelugogancea@stripped
> ----- Original Message -----
> From: "Richard Unger" <runger@stripped>
> To: <mysql@stripped>
> Sent: Tuesday, September 17, 2002 9:59 PM
> Subject: aggregate functions producing bad data
>
>
> My query:
>
> SELECT
> count(id),
> count( IF(call_end - call_start > 5, id, NULL) ),
> count( IF(call_end - call_start <= 5, id, NULL) )
> FROM
> t_calllog_calls;
>
> My result:
>
> 1994
> 1956
> 35
>
> However, 1956 + 35 != 1994.
>
> Running MySQL 3.23.49-nt
>
> Cheers,
> Rich
>
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