ORA-12025: materialized view log on “string”.”string” already has primary keys

文档解释

ORA-12025: materialized view log on “string”.”string” already has primary keys

Cause: Materialized view log on the indicated table already has primary key columns.

Action: No action required.

ORA-12025错误是指当创建Materialized View log时,系统发现表上已存在主键时,抛出的错误。

官方解释

这是一个警告性错误,表明Materialized View日志会忽略上存在的主键。由于Materialized View日志会根据其表创建自己的主键,因此如果主键存在,则请尝试先删除上存在的主键。

正常处理方法及步骤

1、使用以下SQL语句检查哪些表存在主键:

SELECT table_name FROM user_constraints WHERE CONSTRAINT_TYPE = ‘P’;

2、删除上述表上存在的主键:

ALTER TABLE

DROP PRIMARY KEY CASCADE;

3、是否可能需要重新建立用户级别的主键:

ALTER TABLE

ADD CONSTRAINT PRIMARY KEY (column1, column2, …columnn);

4、重新创建Materialized View日志:

CREATE MATERIALIZED VIEW LOG ON table_name;

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