PLS-00648: type of supertype attribute "string" can not be a subtype or reference to a subtype in this release

PLS-00648: type of supertype attribute "string" can not be a subtype or reference to a subtype in this release
Cause: User tried to complete a type, Tsub as a subtype of another type, Tsuper where Tsuper contained an attribute of type Tsub or of type REF to Tsub. This is an implementation restriction.
Action: Change the design of code to not use any type with attribute whose type is of subtype or REF to subtype.

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小智 2018-08-30 19:02

PLS-00648：超类型属性“ string ”的类型不能是此版本中的子类型或子类型的引用,
.原因：用户尝试完成一个类型，Tsub作为另一种类型的子类型，Tsuper其中Tsuper包含类型为Tsub的属性或类型为REF的属性为Tsub。这是一个实施限制。,
.操作：将代码设计更改为不使用类型为子类型或REF为子类型的属性的任何类型。,
.

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010-86462881

PLS-00648: type of supertype attribute "string" can not be a subtype or reference to a subtype in this release

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