FAQ: Advanced Aggregates - Daily Count 2

This community-built FAQ covers the “Daily Count 2” exercise from the lesson “Advanced Aggregates”.

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This exercise can be found in the following Codecademy content:

SQL: Analyzing Business Metrics

FAQs on the exercise Daily Count 2

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Is count(1) the same as count(*)?

1 Like

@fjcn97 it seems to accept my code when I use ‘*’ in place of ‘1,’ so yeah I assume they are equivalent here. Anyone else want to weigh in?

Bit late but I found this explanations on stackoverflow (note that these are not from SQLite):

They seem to return the same results, however most of the discussion as to the difference is in how SQL handles the query and how this impacts performance (could be legacy stuff as well as the language is around for decades): COUNT(0/1/‘whatever’) retrieves 0/1/‘whatever’ per record and then counts those, which does essentially the same as COUNT(*) does.

Bottom line seems to prefer COUNT(*) unless you’re explicitly excluding NULL values from row counts, i.e. COUNT(column_name).


When you click ‘Get Unstuck’, there is nothing under the ‘Get Code Solution’ beyond the initial two check points. So, there is no solution for Daily Count 2’s question.

When I type the suggested code, it returns the error, ‘Group and count the orders by their dates’:

select date(ordered_at)
from orders
group by date(ordered_at)
order by date(ordered_at);

Can someone please assist?


select date(ordered_at), count(1)
from orders
group by date(ordered_at)