Oracle/SQL Couting multiple colums grouped by a common column?

Or sum(case action when '_A_' then 1 else 0 end) if you prefer.

Select thing, count(case action when '_A_' then 1 end) as a, count(case action when '_B_' then 1 end) as be from group by thing or sum(case action when '_A_' then 1 else 0 end) if you prefer.

Excellent, thank you! – dscl Jan 26 at 1:52.

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