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ORA-30364: this level has the same set of columns as another ORACLE 报错 故障修复 远程处理

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ORA-30364: this level has the same set of columns as another ORACLE 报错 故障修复 远程处理

文档解释

ORA-30364: this level has the same set of columns as another

Cause: The level definition contained the same set of columns as another level.

Action: Eliminate the redundant level definition.

错误说明

ORA-30364:此级别具有与另一个相同的列集(ORA-30364:This level has the same set of columns as another)是ORACLE数据库中一种常见的错误,当程序在尝试创建重复的表级别(属性组)时即会报出此错误。此错误是指在层次中现有列在另一个层次中存在。此错误也会发生在度量表中,当尝试将列添加到度量中时,此错误也会发生。

常见案例

案例一:假如我有一个 OLAP cube (Cube1),cube 中有一些表维度(属性组),该表可以分解为子表,每个子表具有各自的表级别(attribute groups),这时误将子表的一个表级别(attribute group)添加到父表的表级别( attribute group)中就可能导致ORA-30364错误发生。

案例二:假如我们试图将相同的列添加到度量表的某个层次,也会触发ORA-30364错误。

解决方法

解决此ORA-30364错误的常用方法有使用ALTER加以修复,重命名当前错误的属性组,或者将添加了重复列的表删除。

一般处理方法及步骤

1. 检查表(OLAP cube)维度(dimension tables)是否有任何重复的列

2. 将表维度(dimension table)的某一列的名称更改

3. 使用以下语句更新表

ALTER CUBE DISABLE ALTER

4. 使用以下语句激活表

ALTER CUBE ENABLE ALTER

另一种解决办法就是将重复的表级别(attribute group)重新命名,可使用以下语句实现:

ALTER TABLE

DROP ATTRIBUTE GROUP

如此,重复的表级别(attribute group)就会从该表中删除,并可任意重新命名。

此外,还可以使用DELETE语句从OLAP cube(cube)中删除表(table):

DELETE FROM cube WHERE

总结

ORA-30364:此级别具有与另一个相同的列集(ORA-30364:This level has the same set of columns as another)是ORACLE数据库中一种常见的错误,当程序在尝试创建重复的表级别(属性组)或者尝试将列添加到度量表中时可能引发此错误。解决此ORA-30364错误的常用方法主要有使用ALTER加以修复,重新命名表级别(attribute group),以及删除表。

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ORA-30364: this level has the same set of columns as another ORACLE 报错 故障修复 远程处理

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