oracle 数据库自动备份的窗口模式解压不会把原档案删除，终端模式解压后自动删除原档案-oracle database automatically backup window mode decompression will not delete the original file, terminal mode unpacked automatically delete the original files

数据库数据文件丢失、造成数据库崩溃，然后做全库rman备份，删除坏了的数据文件-Database data files are missing, resulting in a database crash, and then do the whole database rman backup, delete the bad data file