rman备份恢复命令

1. 0级全备

 backup incremental level 0 database;

2. 1级增备

backup incremental level 1 database;

3. 日志备份

 backup archivelog all delete input;

4. 完全恢复

 run {
   allocate channel c1 type disk;
   restore database;
   recover database;
   sql 'alter database open';
 }

5. 不完全恢复（按时间点）

run {
  allocate channel c1 type disk;
  SET UNTIL TIME "to_date('2015-07-09 02:37:28','yyyy-mm-dd hh24:mi:ss')";
  restore database;
  recover database;
  sql 'alter database open resetlogs';
}