14:29:58SQL> select max(sequence#) from v$archived_log; MAX(SEQUENCE#) --- 19 一次切换当前REDO的ALERT日志 dg1--REDO切换到了LOG#1的--/u01/oradata/dg/redo01.log, Sat Jul 2717:06:58 2013 Thread 1advanced to log sequence 25 (LGWR switch) Current log# 1 seq# 25 mem# 0:/u01/ora...
在dg1上操作 SYS@dg1>alter system archive log current; System altered. SYS@dg1>alter system set log_archive_dest_state_2=defer; System altered. ### 4.在dg2上打开数据库为RW模式并在数据库中进行创建表等操作 SYS@dg2>alter database activate standby database; Database altered. SYS@dg2>alter ...
<CPUNumber> 指示当前 <PROCESSOR_POWER_INFORMATION> 元素描述的处理器。 <MaxMhz> 指示处理器的最大频率。 <CurrentMhz> 指示处理器的当前频率。 <MhzLimit> 指示处理器时钟频率的当前限制。 <MaxIdleState> 指示处理器的最大空闲状态。 <CurrentIdleState> 指示处理器的当前空闲状态。执行...
官方文档要求standby log file必须和源库大小一致。关于归档日志组的个数参考官方的2句话“The minimum configuration should have one more standby redo log group than the primary database.During testing, the easiest way to determine if the current standby log configuration is satisfactory is to examine t...
Apple has started preparing its marketing, sales, and retail teams as it gears up for the March release of new 13-inch and 15-inch MacBook Air models featuring M4 chips, according to Bloomberg's Mark Gurman. Writing in his latest Power On newsletter, Gurman said that current models are al...
Current max_connections setting: 2000 Current max_prepared_xacts setting: 50 Current max_locks_per_xact setting: 64 Maximum data alignment: 8 Database block size: 8192 Blocks per segment of large relation: 1048576 WAL block size: 8192
SQL> ALTER DATABASE RECOVER MANAGED STANDBY DATABASE USING CURRENT LOGFILE; 如果要停止REDO应用,执行下列语句即可: SQL> ALTER DATABASE RECOVER MANAGED STANDBY DATABASE CANCEL; 2.逻辑Standby应用REDO数据 SQL应用的原理是将接收到的REDO数据转换成SQL语句在逻辑Standby数据库端执行,因此逻辑Standby需要启动至OPEN...
Oracle 19c 新特性之一,adg的自动 dml 重定向.就是在 ADG 环境下,连接到 standby 的数据库执行 dml. 这个特性在 18c 是作为隐含参数 _enable_proxy_adg_redirect 调整的, 但在 19c 中,通过显式参数 ADG_REDIRECT_DML
The delay time of an inverter or NAND chain at a gate length yielding equal standby current and active current is used as the definition of a maximum Figure of Merit (FOM), FOM/sub max/. The circuit power that occurs under this condition of equal standby and active currents is an ...
1,备库设置standby_file_management为autoaltersystemsetstandby_file_management='auto';2,备库上启动同步:alterdatabaserecover managed standbydatabaseusingcurrentlogfile disconnect;SQL>selectopen_modefromv$database; OPEN_MODE---READONLYWITHAPPLY3,检查状态: 主库多次执行...