ORA-29973: Unsupported query or operation during change notification registration

文档解释

ORA-29973: Unsupported query or operation during change notification registration

Cause: The user attempted to register an unsupported query type or an unsupported operation like a DML/DDL for change notification.

Action: Please check the statement being executed and refer to the documentation.

ORA-29973: Unsupported query or operation during change notification registration指的是在注册变更通知时发生了不支持的查询或操作。

常见案例

(1)使用DBMS_CHANGE_NOTIFICATION包时没有启用通知;

(2)查询条件太多,无法在特定时间内有效地执行;

(3)使用BIND_LOB字段发出查询通知时,参数LOB_LEN与LOB_IDX可能不正确。

有了这个错误,应该按照以下步骤解决:

(1)检查通知是否启用;

(2)确定查询条件,以快速而有效地执行;

(3)确保带注册的BIND_LOB字段的参数LOB_LEN及LOB_IDX正确。

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