SQL> archive log listDatabase log mode No Archive ModeAutomatic archival DisabledArchive destination USE_DB_RECOVERY_FILE_DESTOldest online log sequence 15Current log sequence 17 设置归档模式：SQL> shutdown immediate;Database closed.Database dismounted.ORACLE instance shut down.SQL> startup mountORACLE instance started.Total System Global Area 1258291200 bytesFixed Size 1219160 bytesVariable Size 318768552 bytesDatabase Buffers 922746880 bytesRedo Buffers 15556608 bytesDatabase mounted.SQL> alter database archivelog;Database altered.SQL> alter database open;Database altered.SQL> archive log list;Database log mode Archive ModeAutomatic archival EnabledArchive destination USE_DB_RECOVERY_FILE_DESTOldest online log sequence 15Next log sequence to archive 17Current log sequence 17log_archive_start = true 重启数据库此参数生效，此时数据库处于自动归档模式。也可以在数据库启动过程中，手工执行：archive log start 使数据库启用自动归档，但是重启后数据库仍然处于手工归档模式。 10g使用db_recovery_file_dest来作为归档日志的存放地（？）SQL> show parameter db_recoveryNAME TYPE VALUE------------------------------------ ----------- ------------db_recovery_file_dest string /home/oracle/ora10g/Flash_recovery_area/db_recovery_file_dest_size big integer 20G 可以修改db_recovery_file_dest_size参数的大小alter system set db_recovery_file_dest_size=21474836480 新闻热点
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