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ORA-02306: cannot create a type that already has valid dependent(s) ORACLE 报错 故障修复 远程处理

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ORA-02306: cannot create a type that already has valid dependent(s) ORACLE 报错 故障修复 远程处理

文档解释

ORA-02306: cannot create a type that already has valid dependent(s)

Cause: An attempt was made to create a type that already has some valid dependent(s) (these dependents depend on the fact that the type does not exist).

Action: Drop the dependents first before creating the type, or do not create the type.

ORA-02306: cannot create a type that already has valid dependent(s) 表示不能创建已存在有效依赖的类型。

官方解释

当尝试在具有依赖项的类型上创建新类型时,将引发此错误。 这可能出现在嵌套表数据类型、Varray 和 PL/SQL 包中,可能由于类型之间的依赖关系造成。

常见案例

该错误的一个典型的案例是,如果已经存在有效的依赖项,则不能替换已存在的类型。 例如,假设有一个表格对象(table_obj),指定用于存储的类型为my_tab,my_tab的类型是VARRAY的一部分。我们试图替换my_tab,即使替换的类型结构与原来的类型结构完全一样,也会报错。

正常处理方法及步骤

1. 检查当前类型下是否存在具体依赖。

2. 删除依赖项,例如从表中删除列,或者删除对该对象的引用。

3. 尝试重新执行替换步骤。

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ORA-02306: cannot create a type that already has valid dependent(s) ORACLE 报错 故障修复 远程处理

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