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PLS-00646: MAP or ORDER method must be defined in the root of the subtype hierarchy

PLS-00646: MAP or ORDER method must be defined in the root of the subtype hierarchy
Cause: An attempt was made to define a MAP or ORDER method in a subtype.
Action: Define the MAP or ORDER method in the root of the subtype hierarchy. You can override MAP methods in subtypes.

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1 个回答

小智
PLS-00646:MAP或ORDER方法必须在子类型层次结构的根中定义,
.原因:尝试在子类型中定义MAP或ORDER方法。,
.操作:在子类型层次结构的根目录中定义MAP或ORDER方法。您可以覆盖子类型中的MAP方法。,
.
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