SQL Count for each date

Question

I have the following need

I have a logging table which logs som leads generated each day.

Now I need to pull a report over the amount of leads for each day over

Answer 1

It is most efficient to do your aggregation by integer and then convert back to datetime for presentation.

select 
    cast(daybucket - 1 as datetime) as count_date,
    counted_leads
from 
    (select 
         cast(created_date as int) as DayBucket,
         count(*) as counted_leads
     from mytable
     group by cast(created_date as int) ) as countByDay