ORA-30625: method dispatch on NULL SELF argument is disallowed

文档解释

ORA-30625: method dispatch on NULL SELF argument is disallowed

Cause: A member method of a type is being invoked with a NULL SELF argument.

Action: Change the method invocation to pass in a valid self argument.

官方解释

常见案例

一般处理方法及步骤

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