文档解释
ORA-55519: Supplemental logging not available for mining SCN range
Cause: Flashback Transaction cannot work if there are regions in the mining range where supplemental logging is not enabled.
Action: If you have provided a SCN/time hint which is approximate and far beyond the specified transaction start time, then readjust the SCN hint and try again. If the system has figured out the transaction start time or you are sure of the range, then the specified transaction cannot be backed out.
ORA-55519表示挖掘SCN范围的补充日志不可用。
官方解释
当您执行挖掘SCN范围操作时，您必须启用补充日志以提供充分的细节以帮助挖掘进程。
常见案例
当用户未在挖掘过程期间启用补充日志记录时，就会出现ORA-55519错误。
一般处理方法及步骤
1.首先查看您是否已启用补充日志记录，以确保您了解其有效期。
2.如果补充日志未启用，则使用ALTER DATABASE ADD SUPPLEMENTAL LOG DATA (ALL) 命令启用补充日志记录。
3.请尝试再次执行挖掘过程，确认ORA-55519错误是否已解决。
