E-learn Weblog van Willem van Valkenburg
Blogging about OER, OCW, Blackboard, Mobile, Social Media and other interesting stuff
Blogging about OER, OCW, Blackboard, Mobile, Social Media and other interesting stuff
select
to_char(timestamp,'YYYYMMDD'),
count(distinct(user_pk1))
from
(
select user_pk1, timestamp from bb_bb60_stats.activity_accumulator
union
select user_pk1, timestamp from bb_bb60.activity_accumulator
)
where
timestamp between to_date('01092004','DDMMYYYY') and to_date('01112004','DDMMYYYY')
group by
to_char(timestamp,'YYYYMMDD')
order by
1
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