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ORA-23435: cannot create an updatable ROWID materialized view with LOB columns ORACLE 报错 故障修复 远程处理

报错故障updatable 2023-11-05 07:11:53 624人浏览 八月长安
摘要

文档解释 ORA-23435: cannot create an updatable ROWID materialized view with LOB columns Cause: The propagation of LOB data f

文档解释

ORA-23435: cannot create an updatable ROWID materialized view with LOB columns

Cause: The propagation of LOB data from materialized view sites to the master site requires a primary key on the replicated table. Thus updatable ROWID materialized views that contain LOB columns are not supported.

Action: Create a primary key materialized view instead of a ROWID materialized view. If the materialized view already exists, it can be converted to a primary key materialized view using the ALTER MATERIALIZED VIEW DDL command.

ORA-23435错误提示不能使用LOB字段创建可更新的ROWID物化视图。这是由于可更新的ROWID物化视图无法使用LOB字段。LOB(Large Object)字段通常用于存储非常大的特殊文件类型,如BLOB(Binary Large Object)、CLOB(Character Large Object)等,这些文件一般在数据库中表现为可输入/输出的流。

ORA-23435的官方解释如下:

ORA-23435: cannot create an updatable ROWID materialized view with LOB columns

Cause: An attempt was made to create an Updatable ROWID materialized view on a base table that has LOB columns.

Action: Remove the LOB columns from the base table and create the Updatable ROWID Materialized View

这是由于可更新的ROWID物化视图无法使用LOB字段,而oracle不支持改变LOB字段的物化属性(updatable rowid materialized view)。

一般处理方法及步骤

1.检查物化视图是否含有LOB字段:

SELECT * FROM DBA_LOBS WHERE VIEW_NAME = ‘PVT_MVIEW_NAME’;

2.如果有,则不能使用LOB字段创建可更新的ROWID物化视图,需要移除LOB字段:

ALTER TABLE base_table DROP COLUMN lob_column;

3.重新创建可更新的ROWID物化视图:

CREATE MATERIALIZED VIEW mview_name — Refresh on Complete Refresh with Rowid AS Select base_column from base_table;

--结束END--

本文标题: ORA-23435: cannot create an updatable ROWID materialized view with LOB columns ORACLE 报错 故障修复 远程处理

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