1. Archivelog mode In this mode, after the online redo logs are filled , it will move to archive location 2. Noarchivelog mode In this mode, filled online redo logs wont be archives, instead they will be overwritten. Enable archive log mode: SQL > select name,log_mode from v$database; ...
SQL> alter database archivelog; Database altered. 步骤六:alter database open打开数据库,此模式为数据库的正常模式. SQL> alter database open; Database altered. 步骤七:此时查看归档状态,已经变为enable,已经开启归档 SQL> archive log list; Database log mode Archive Mode Automatic archival Enabled Arch...
(11)启用Oracle数据库的归档模式,增强数据库系统的可用性: SQL>alter database archivelog; 使用命令查看归档日志列表: SQL>archive log list; Database log mode Archive Mode Automatic archival Enable 得到以上返回信息说明数据库已经运行在归档模式下,实验完成。 4结论 通过实验证明,本文提出的Oracle数据库重做日志...
Database mounted. SQL> Now set the database in archive log mode SQL> alter database archivelog; Database altered. Finally open the database. SQL> alter database open; Database altered. SQL> archive log list Database log modeArchive Mode Automatic archivalEnabled Archive destination /u01/app/...
SQL>alter database archivelog; 使用命令查看归档日志列表: SQL>archive log list; Database log mode Archive Mode Automatic archival Enable 得到以上返回信息说明数据库已经运行在归档模式下,实验完成。 4结论 通过实验证明,本文提出的...
Database log mode Archive Mode Automatic archival Enabled Archive destination USE_DB_RECOVERY_FILE_DEST Oldest online log sequence1 Next log sequence to archive1 Current log sequence 1 实验模拟种类及解决方案 1)丢失部分控制文件,其余控制文件还在 ...
$ srvctl stop database -d <db_unique_name> -- startup database in mount mode $ srvctl start database -d <db_unique_name> -o mount -- enable archive logging $ sqlplus / as sysdba sql> alter database archivelog; sql> exit;
SQL>alter database archivelog; Database altered. SQL>alter database open; Database altered. SQL>archive log list; Database log mode Archive Mode Automatic archival Enabled Archive destination USE_DB_RECOVERY_FILE_DEST Oldest online log sequence 15 ...
control_files string /oradata/racdb/datafile/racdb. ctl 9、创建standby redo log日志。 创建原则和单实例一样,大小相等,但日志组数量要比primary数据库多一组。如之前为6组12个,则现在要创建7组14个。 alter database add standby logfile thread 1 group 7 '/oradata/racdb/onlinelog/group_7.log' si...