查询rman备份状态主要是通过视图V$RMAN_STATUS来进行，这个视图可以让你看见你在RMAN里面执行的操作。
在V$RMAN_STATUS中，最主要的列是OPERATION和status。
Operation的值有rman、backup、list、report。
Status的值有running、running with warnings、running with errors、completed、completed with warnings、completed with errors、failed等几种状态。
如果要查看RMAN的输出，可以查看V$RMAN_OUTPUT。V$RMAN_OUTPUT 视图记录了RMAN生成的信息，这是在内存中的视图，不会记录到控制文件上。最多有37278条记录。
还可以从V$RMAN_BACKUP_JOB_DETAILS中查看RMAN备份更详细的信息。
查看备份失败的记录：
SELECT * FROM V$RMAN_STATUS WHERE START_TIME >= TO_DATE(&START_TIME,'YYYY-MM-DD HH24:MI:SS') AND END_TIME <= TO_DATE(&END_TIME ,'YYYY-MM-DD HH24:MI:SS') AND OPERATION ='BACKUP' AND STATUS !='COMPLETED' AND STATUS NOT LIKE 'RUNNING%';
查看备份成功的记录：
SELECT * FROM V$RMAN_STATUS WHERE START_TIME >= TO_DATE(&START_TIME,'YYYY-MM-DD HH24:MI:SS') AND END_TIME <= TO_DATE(&END_TIME ,'YYYY-MM-DD HH24:MI:SS') AND OPERATION ='BACKUP' AND STATUS ='COMPLETED';
查看所有备份集详细信息：
SELECT A.RECID "BACKUP SET",
A.SET_STAMP,
DECODE (B.INCREMENTAL_LEVEL,
'', DECODE (BACKUP_TYPE, 'L', 'Archivelog', 'Full'),
1, 'Incr-1级',
0, 'Incr-0级',
B.INCREMENTAL_LEVEL)
"Type LV",
B.CONTROLFILE_INCLUDED "包含CTL",
DECODE (A.STATUS,
'A', 'AVAILABLE',
'D', 'DELETED',
'X', 'EXPIRED',
'ERROR')
"STATUS",
A.DEVICE_TYPE "Device Type",
A.START_TIME "Start Time",
A.COMPLETION_TIME "Completion Time",
A.ELAPSED_SECONDS "Elapsed Seconds",
A.BYTES/1024/1024/1024 "Size(G)",
A.COMPRESSED,
A.TAG "Tag",
A.HANDLE "Path"
FROM GV$BACKUP_PIECE A, GV$BACKUP_SET B
WHERE A.SET_STAMP = B.SET_STAMP AND A.DELETED = 'NO'
ORDER BY A.COMPLETION_TIME DESC;
查找某个备份集中包含数据文件
SELECT DISTINCT c.file#,A.SET_STAMP, D.NAME, C.CHECKPOINT_CHANGE#, C.CHECKPOINT_TIME
FROM V$BACKUP_DATAFILE C, V$BACKUP_PIECE A, V$DATAFILE D
WHERE A.SET_STAMP = C.SET_STAMP
AND D.FILE# = C.FILE#
AND A.DELETED='NO'
AND c.set_stamp=&set_stamp
ORDER BY C.FILE#;
查询某个备份集中控制文件
SELECT DISTINCT A.SET_STAMP,
D.NAME,
C.CHECKPOINT_CHANGE#,
C.CHECKPOINT_TIME
FROM V$BACKUP_DATAFILE C, V$BACKUP_PIECE A, V$CONTROLFILE D
WHERE A.SET_STAMP = C.SET_STAMP
AND C.FILE# = 0
AND A.DELETED = 'NO'
AND C.SET_STAMP = &SET_STAMP;
查看某个备份集中归档日志:
SELECT DISTINCT B.SET_STAMP,
B.THREAD#,
B.SEQUENCE#,
B.FIRST_TIME,
B.FIRST_CHANGE#,
B.NEXT_TIME,
B.NEXT_CHANGE#
FROM V$BACKUP_REDOLOG B, V$BACKUP_PIECE A
WHERE A.SET_STAMP = B.SET_STAMP
AND A.DELETED = 'NO'
AND B.SET_STAMP = &SET_STAMP
ORDER BY THREAD#, SEQUENCE#;
查看某个备份集SPFILE
SELECT DISTINCT A.SET_STAMP, B.COMPLETION_TIME, HANDLE
FROM V$BACKUP_SPFILE B, V$BACKUP_PIECE A
WHERE A.SET_STAMP = B.SET_STAMP
AND A.DELETED = 'NO'
AND B.SET_STAMP = &SET_STAMP;
查看RMAN的配置信息
SELECT NAME,VALUE FROM V$RMAN_CONFIGURATION;