The following is the ORA-22874 error message, you can learn the cause and solution of the Oracle database error.
ORA-22874 attribute “string” is not part of the type “string“
Cause: Attribute specified in the USER_DEFINED clause is not an attribute of the REF type.
Solution: Ensure that the name specified in the USER_DEFINED clause is the name of a valid attribute of the REF type.
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