ORA-47800：Oracle Data Pump authorization for Oracle Database Vault to string to execute action string already exists.
错误码
错误描述：Oracle Data Pump authorization for Oracle Database Vault to string to execute action string already exists.
错误原因：Oracle Data Pump authorization for Oracle Database Vault to execute the specified action was already granted to the specified grantee.
解决方法：Choose a different grantee or action and retry the operation.
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