ORA-23480 Column string is not a top-level column of “string”.”string”. cause and solution
The following is the ORA-23480 error message, you can learn the cause and solution of the Oracle database error.
ORA-23480 Column string is not a top-level column of “string“.”string“.
Cause: The column is either not a top-level column or is not present in the table or materialized view.
Solution: Ensure only valid top-level columns are used.
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