ORA-22341: cannotassign supertype instance to subtype Cause: An attempt was made to assign or copy a supertypeinstance to a
container (destination) that can only hold a subtype instance. Action: Makesure the runtime type of the source of the assignment or copy is the
same type as the destination or is a subtype of the destination type
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发表于 2016-8-31 17:16:45
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