文档解释
ORA-19584: file string already in use
Cause: The indicated file, which was specified as the target for a copy, restore, or delete operation is already in use by the database.
Action: Specify a different name and retry the operation.
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ORA-19584错误代表文件字符串已被使用。只要您尝试使用ORA-19584错误的文件字符串，就会出现此错误。
官方解释
ORA-19584: file string already in use
Cause: An attempt was made to use a file string that was already in use.
Action: Verify the Data Pump job was defined correctly and the file has been closed.
常见案例
一般处理方法及步骤
1.检查必要的文件是否被使用，对具有ORA-19584错误的文件限制访问权限。
2.确保Oracle数据泵作业定义中没有问题，文件使用正确的形式。
3.查看文件是否已正确关闭，确认文件可以正常读取。
4.重启应用程序或数据库，以释放文件资源。
5.如果文件未关闭，重新尝试启动你的Oracle数据泵作业，直到文件被正确关闭。
