PLS-00580: supertype must be an object type

PLS-00580: supertype must be an object type
Cause: An attempt was made to declare an object type to have a supertype, but the specified supertype was not itself an object type. Object types can inherit only from other object types.
Action: Remove the supertype specification, or change it to refer to an object type. If the declaration appears correct, make sure the supertype has compiled correctly.

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小智 2018-08-30 19:02

PLS-00580：超类型必须是对象类型,
.原因：尝试声明一个对象类型以具有超类型，但是指定的超类型本身不是对象类型。对象类型只能从其他对象类型继承。,
.操作：删除超类型规范，或更改它以引用对象类型。如果声明正确，请确保超类型已正确编译。,
.

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PLS-00580: supertype must be an object type

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