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ORA-32307: must use FROM ONLY clause when referencing an object table ORACLE 报错 故障修复 远程处理

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ORA-32307: must use FROM ONLY clause when referencing an object table ORACLE 报错 故障修复 远程处理

文档解释

ORA-32307: must use FROM ONLY clause when referencing an object table

Cause: An attempt was made to create a materialized view whose definition query references object tables without the FROM ONLY clause.

Action: Rewrite the definition query to use the FROM ONLY clause for all the object tables in the query.

ORA-32307: 引用对象表时必须使用from only子句

官方解释

ORA-32307表明,在引用对象表时必须使用from only子句。当查询涉及存储在对象表中的复杂嵌套对象类型时,这是必要的。

常见案例

一个常见的用于发生这个错误的情况是,当程序试图从一个对象表中返回基元类型属性而不使用from only子句时。

一般处理方法及步骤

避免凡是从一个对象表中返回基元类型属性时,必须使用from only子句。

正确示例:

select emp_name, emp_address

from employees table(from only)

where emp_id = ‘10012’;

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ORA-32307: must use FROM ONLY clause when referencing an object table ORACLE 报错 故障修复 远程处理

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