{ { BACKUPPIECE | PROXY }
{ 'media_handle' [, 'media_handle']...
| primary_key [, primary_key]...
| TAG [=] ['] tag_name [']
}
| BACKUPSET primary_key [, primary_key]...
| { CONTROLFILECOPY | DATAFILECOPY }
{ { primary_key [, primary_key]...
| 'filename' [, 'filename']...
}
| TAG [=] ['] tag_name ['] [, ['] tag_name [']]...
}
| ARCHIVELOG
{ primary_key [, primary_key]...
| 'filename' [, 'filename']...
}
| archivelogRecordSpecifier
}