ORA-43814: DROP INDEX is invalid for hash cluster index

文档解释

ORA-43814: DROP INDEX is invalid for hash cluster index

Cause: An attempt was made to drop an index defined on a hash cluster. Hash cluster indexes cannot be dropped.

Action: Do not attempt to drop an index defined on a hash cluster.

ORA-43814错误表示您试图在哈希簇索引上运行DROP INDEX（删除索引）语句，但操作无效。

官方解释

ORA-43814: Drop index on hash cluster index not supported

Cause: An attempt was made to drop an index on a hash cluster index

Action: This is an invalid operation and is not supported

常见案例

在哈希簇上建立了索引后，试图使用DROP INDEX语句来删除，却报此错误。

一般处理方法及步骤

必须删除整个哈希簇，而不仅仅是删除其上的索引，才能解决该错误。

1. 使用SQL：SELECT * FROM ALL_INDEXES WHERE TABLE_NAME = 'TABLE_NAME’来查询表的索引信息，以获取哈希簇索引的名称。

2. 使用SQL：DROP CLUSTER 'ClusterName’ FORCE来强制删除哈希簇。

3. 再次确认您已删除索引，或者重新建立新索引。