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ORA-54014: Resulting table from a CTAS operation contains virtual column(s) ORACLE 报错 故障修复 远程处理

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ORA-54014: Resulting table from a CTAS operation contains virtual column(s) ORACLE 报错 故障修复 远程处理

文档解释

ORA-54014: Resulting table from a CTAS operation contains virtual column(s)

Cause: Table being created by a CTAS operation contains a virtual column definition

Action: Remove the virtual column definition from the table being created

错误说明:

ORA-54014是ORACLE数据库中由于创建表(CREATE TABLE)操作期间出现错误而引发的错误,这是一个令人沮丧的错误,它会破坏创建表语句并导致创建表失败。此错误的文本是:”Resulting table from a CTAS operation contains virtual column(s)“,这意味着当CTAS(创建表语句)操作正在进行时,由于结果表中包含虚拟列,因此无法将该表添加到数据字典中。

常见案例

ORA-54014常见的案例是在创建表语句时,由于EXTRACT部分表内包含虚拟列,而未添加到CREATE TABLE中,因此出现这个错误。

典型地,在处理以下语句时,您可能会发现这个问题,该语句将源表复制到新表:

CREATE TABLE dest_table AS (

SELECT * FROM source_table

);

如果源表中包含虚拟列(不知道源表中是否有虚拟列时,可以执行:“SELECT * FROM user_tab_cols WHERE table_name=”源表名称” AND VIRTUAL_COLUMN=’YES‘),那么上述语句将失败,并产生一个ORA-54014错误。

解决方法:

ORA-54014可以通过编辑CTAS操作来解决:

CREATE TABLE dest_table AS (

SELECT col1, col2, … FROM source_table

);

上述语句避免根据源表复制虚拟列,从而修复ORA-54014。另一种解决办法是对源表执行应将虚拟列删除的操作,然后再创建复制表。

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ORA-54014: Resulting table from a CTAS operation contains virtual column(s) ORACLE 报错 故障修复 远程处理

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