SQL>selectinstance_name, to_char(startup_time,'mm/dd/yyyy hh24:mi:ss') as startup_time from v$instance; INSTANCE_NAME STARTUP_TIME--- ---orahowdb09/03/202003:24:03 2、Oracle 数据库启动历史 您可以使用以下查询来检查 Oracle 数据库的正常运行时间历史记录。 SQL>setlines200SQL>col instance...
ROUND ( (e.VALUE - b.VALUE) / 1000000 / 60, 2) db_time, ROUND ( ( ( ( (e.VALUE - b.VALUE) / 1000000 / 60) / (EXTRACT ( DAY FROM s.end_interval_time - s.begin_interval_time) * 1440 + EXTRACT ( HOUR FROM s.end_interval_time - s.begin_interval_time) * 60 + EXTRACT...
[root@singledb ~]# date Tue Jan 25 11:05:32 EST 2011 1.2.2 修改时间 将时间往前调整一下: [root@singledb ~]# date -s 1/1/2011 Sat Jan 1 00:00:00 EST 2011 [root@singledb ~]# date Sat Jan 1 00:00:22 EST 2011 1.3启动DB SQL> startup ORACLE instance started. Total System G...
A larger write batch increases the DBWR I/O wait time, especially in an environment where datafiles are poorly placed. A sure sign that the write batch is too big is when user sessions start to wait on the write complete waits event. Prior to Oracle 8i, the _DB_BLOCK_WRITE_BATCH param...
startup nomount选项:(通常启动到这里可以做create database , create or recreate control file 或者是mount standby database等动作) startup mount 选项 (通常启动到这里的目的有recover dtabase ; backup database ; rename db files ,change archivelog mode等) ...
Destination DB Engine SelectGaussDB(DWS). Network Type Public networkis used as an example. Available options:VPC,Public networkandVPN or Direct Connect VPC is suitable for data synchronization between cloud databases of the same account in the same region and VPC. ...
1、修改/etc/oratab 文件[root@localhost oracle]# vim/etc/oratab找到:JiekeXu:/u01/app/oracle/product/12.2.0/dbhome_1:N修改为:JiekeXu:/u01/app/oracle/product/12.2.0/dbhome_1:Y2、新建 Oracle 服务自启动脚本 vim/etc/init.d/oracle
STARTUP MOUNT;ALTERDATABASE ARCHIVELOG;ALTERDATABASEOPEN; 执行下述命令,查看归档日志的路径和配额。 检查recovery file的路径和配额,建议db_recovery_file_dest_size的配置值尽量大一些。另外,开启归档后,需要用 RMAN 等方法定期清理归档日志。 SHOWPARAMETERdb_recovery_file_dest; ...
SHUTDOWNIMMEDIATE;STARTUP MOUNT;ALTERDATABASEARCHIVELOG;ALTERDATABASEOPEN; 执行下述命令,查看归档日志的路径和配额。 检查recovery file的路径和配额,建议db_recovery_file_dest_size的配置值尽量大一些。另外,开启归档后,需要用 RMAN 等方法定期清理归档日志。
$ orapwd file=/u01/app/oracle/product/19.0.0/dbhome_1/dbs/orapwcdb1 password=OracleLab123 entries=10 force=y 启动OracleVM2上的数据库: Bash复制 exportORACLE_SID=cdb1 sqlplus / as sysdba SQL> CREATE spfile from pfile; SQL> STARTUP NOMOUNT PFILE='/tmp/initcdb1_stby.ora'; SQL> EXIT...