PLS-00118: Duplicate group-by clause in table expression
Answer Posted / guest
Cause: Two or more GROUP BY clauses were found in a SELECT
statement. The GROUP BY clause lists column expressions used
to form a summary row for each group of selected rows. The
list can contain several column expressions separated by
commas, but a statement can contain only one GROUP BY clause.
Action: Remove one of the GROUP BY clauses and, if
necessary, separate column expressions by commas.
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