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count distinct values

Author

Topic

pelegk2
Aged Yak Warrior

723 Posts

Posted - 2013-01-08 : 09:12:30

i have table with :
date,personalid
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?

nigelrivett
Master Smack Fu Yak Hacker

3385 Posts

Posted - 2013-01-08 : 09:26:57

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.

visakh16
Very Important crosS Applying yaK Herder

52326 Posts

Posted - 2013-01-08 : 23:49:01

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)

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SQL Server MVP
http://visakhm.blogspot.com/

pelegk2
Aged Yak Warrior

723 Posts

Posted - 2013-01-09 : 03:58:35

10x all

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