ORA-00978: nested group function without GROUP BY

HashFlare

oracle

ORA-00978: nested group function without GROUP BY
Cause: A group function, such as AVG, COUNT, MAX, MIN, SUM, STDDEV, or VARIANCE, was used within another group function, as in MAX(COUNT(*)), without a corresponding GROUP BY clause
Action: Either add a GROUP BY clause or remove the extra level of nesting.

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