ORA-00979: not a GROUP BY expression - Oracle Database 12c Error Messages

Описание

In this video we are going to see how to fix below Oracle Database 12c Error Message.

ORA-00979: not a GROUP BY expression.
Cause: The GROUP BY clause does not contain all the expressions in the SELECT clause.
SELECT expressions that are not included in a group function, such as AVG, COUNT, MAX, MIN, SUM, STDDEV, or VARIANCE, must be listed in the GROUP BY clause.
Action: Include in the GROUP BY clause all SELECT expressions that are not group function arguments.

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