需要停数据库服务执行以下三步：
1、还原：
restore database 'dm.ini绝对路径' from backupset '备份集绝对路径';
2、 恢复命令：
recover database 'dm.ini绝对路径' from backupset '备份集绝对路径';

3、 更新：
recover database 'dm.ini绝对路径' update db_magic

到达梦软件的安装目录，执行dmrman.exe

从备份集还原恢复

#以下语句仅供参考，以实际路径为准
RESTORE DATABASE '/opt/dmdbms/data/DAMENG_FOR_RESTORE/dm.ini' FROM BACKUPSET '/home/dm_bak/db_full_bak_for_restore';
RECOVER DATABASE '/opt/dmdbms/data/DAMENG_FOR_RESTORE/dm.ini' FROM  BACKUPSET '/home/dm_bak/db_full_bak_for_recover_backupset';
RECOVER DATABASE '/opt/dmdbms/data/DAMENG_FOR_RESTORE/dm.ini' UPDATE DB_MAGIC;