On 11-Jul-01 Nelson Goforth wrote:
> I'm trying to return several pieces of information from a small table.
>
> Table is 'tickets':
>
> id CHAR(50)
> group CHAR(50)
> issued DATE
> used DATE
>
> 'issued' and 'used' are NULL until a date is entered. The found set
> is generally based on the 'group'.
>
> I want the actual number of records in a found set - COUNT(*) is easy
> - but I also want the number of tickets that exist but which have not
> been issued, and the number that HAVE been issued but have not been
> used.
>
> In looking via SELECT * FROM tickets, the DATE fields are NULL if
> nothing is actually entered into them.
>
>
> I've tried SELECT COUNT(*), COUNT(ISSUED IS NULL) as notissued... etc
>
> and other variations, but I always get the count for the total (*)
> and for the issued field being the same. I expect that this is
> because COUNT is counting the total number of found records, but I'm
> not sure.
>
> How can I get the numbers I'm interested in?
>
not tested - try:
select count(*), sum( IF (ISSUED IS NULL,1,0)) ...
Regards,
--
Don Read [EMAIL PROTECTED]
-- It's always darkest before the dawn. So if you are going to
steal the neighbor's newspaper, that's the time to do it.
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