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 count distinct values
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Aged Yak Warrior

723 Posts

Posted - 01/08/2013 :  09:12:30  Show Profile  Visit pelegk2's Homepage  Send pelegk2 an ICQ Message  Reply with Quote
i have table with :
i want to count for each day
1)how many rows there are
2)how many distinct personalid in a day

what the best way to do it?

Flowing Fount of Yak Knowledge

United Kingdom
3383 Posts

Posted - 01/08/2013 :  09:26:57  Show Profile  Visit nigelrivett's Homepage  Reply with Quote
select count(*), count(distinct personalid), date
from tbl
group by date

Cursors are useful if you don't know sql.
SSIS can be used in a similar way.
Beer is not cold and it isn't fizzy.
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Very Important crosS Applying yaK Herder

52326 Posts

Posted - 01/08/2013 :  23:49:01  Show Profile  Reply with Quote
does date field store timepart too? if yes,

select count(*), count(distinct personalid),  dateadd(dd,datediff(dd,0,[date]),0)
from tbl
group by dateadd(dd,datediff(dd,0,[date]),0)

SQL Server MVP

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Aged Yak Warrior

723 Posts

Posted - 01/09/2013 :  03:58:35  Show Profile  Visit pelegk2's Homepage  Send pelegk2 an ICQ Message  Reply with Quote
10x all
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