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安装oracle时内核参数详解NameDescriptionReasonable ValuesSHMMAXMaximum size of shared memory segment (bytes)250kB + 8.2kB * shared_buffers + 14.2kB * max_connections or infinitySHMMINMinimum size of shared memory segment (bytes)1SHMALLTotal amount of shared memory available (bytes or pages)if bytes, same as S 阅读全文
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LogMiner日志分析工具的使用1.安装logminer: 要安装LogMiner工具,必须首先要运行下面这样两个脚本,$ORACLE_HOME/rdbms/admin/dbmslm.sql$ORACLE_HOME/rdbms/admin/dbmslmd.sql.这两个脚本必须均以SYS用户身份运行。*************使用字典文件存储在flat file中*****************************2.创建数据字典文件ALTER SYSTEM SET UTL_FILE_DIR = 'd:\oracle\logmnr' SCOPE=SPFILE;重新启动数 阅读全文
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以下命令均在Standby端执行1.如果是使用ARCH传递redo数据,那么执行以下命令:检查是否有gap archive SELECT THREAD#, LOW_SEQUENCE#, HIGH_SEQUENCE# FROM V$ARCHIVE_GAP; 如果有则register ALTER DATABASE REGISTER PHYSICAL LOGFILE 'filespec1'; 实行Failover:ALTER DATABASE RECOVER MANAGED STANDBY DATABASE CANCEL; ALTER DATABASE ACTIVATE STANDB 阅读全文