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[root@oracle11g ~]# ssh-keygen Generating public/private rsa key pair. Enter file in which to save the key (/root/.ssh/id_rsa): Enter passphrase (empt 阅读全文
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select trunc(completion_time) as "Date", count(*) as "Count", (sum(blocks * block_size))/1024/1024 as "MB" from v$archived_log group by trunc(completi 阅读全文
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开启归档: SQL> host mkdir -p /home/oracle/archivelog SQL> alter system set db_recovery_file_dest_size=5G; System altered. SQL> alter system set db_recover 阅读全文
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故障现象: SQL> select NAME,DATABASE_ROLE,PROTECTION_MODE,SWITCHOVER_STATUS from v$database; NAME DATABASE_ROLE PROTECTION_MODE SWITCHOVER_STATUS RMANPRI P 阅读全文