In this post, you’ll learn more about the Oracle ErrorORA-30453: summary contains AVG without corresponding COUNT with the details on why you receive this error and the possible solution to fix it.
Oracle Error Description
ORA-30453: summary contains AVG without corresponding COUNT
Reason for the Error ORA-30453: summary contains AVG without corresponding COUNT
Incremental refresh of summaries with AVG(X) requires a COUNT(X) column to be included in the summary definition
How to fix the Error ORA-30453: summary contains AVG without corresponding COUNT ?
You can fix this error in Oracle by following the below steps
Make sure that the required columns are part of the summary definition if incremental refresh capability is desired.