文档操作依据来自官方网址:https://docs.oracle.com/cd/E11882_01/server.112/e41134/scenarios.htm#SBYDB4888 闪回FAILOVER失败的物理备库的前提: 1.物理备库FAILOVER前设置db_recovery_file_dest_size足够大 2.物理备库AILOVER前设置db_recovery_file_dest路径 3.开启物理备库闪回数据库 The following steps assume that a f…
转: Could not update Activiti database schema: unknown version from database: '5.20.0.1' 2017年11月22日 13:44:42 琴仙咩豆丁 阅读数:4401 版权声明:Yes, I still love you, let me accompany you around, staged an impossible love https://blog.csdn.net/bc_aptx4869/article…
以前知道 ALTER SYSTEM SWITCH LOGFILE对单实例数据库或RAC中的当前实例执行日志切换, ALTER SYSTEM ARCHIVE LOG CURRENT会对数据库中的所有实例执行日志切换, 所以在RAC环境上大多时间一般使用后者,而今天遇到了不管执行多少次ALTER SYSTEM ARCHIVE LOG CURRENT命令,日志就是不切换的情况 最后使用 ALTER SYSTEM SWITCH LOGFILE 进行强制切换才解决这个问题,而ALTER SYSTEM SW…
w将单个服务器上的单个数据库打碎为多个服务器上的单个数据库 http://www.agildata.com/database-sharding/ Database Sharding provides a method for scalability across independent servers, each with their own CPU, memory and disk. Contrasted with other traditional methods of achieving…
Use ALTER DATABASE to Move Databases Follow Our Daily Tips •facebook.com/TechNetTips• twitter.com/TechNetTips• blogs.technet.com/tnmag• TechNet Tips library You can use the ALTER DATABASE statement to move any system or user-defined database files ex…
Hive Data Definition Language Hive Data Definition Language Overview Create/Drop/Alter Database Create/Drop/Truncate Table Alter Table/Partition/Column Create/Drop/Alter View Create/Drop/Alter Index Create/Drop Function Create/Drop/Grant/Revoke Roles…
SYNOPSIS ALTER DATABASE name SET parameter { TO | = } { value | DEFAULT } ALTER DATABASE name RESET parameter ALTER DATABASE name RENAME TO newname DESCRIPTION 描述 ALTER DATABASE 用于改变一个数据库的属性. 头两种形式为 PostgreSQL 数据库修改缺省的会话运行时配置变量. 随后在该数据库上启动一个新的会话的时候, …
通过合理的设置,对于Primary的绝大数操作,都是可以传递到Physical Standby,datafile的操作是通过STANDBY_FILE_MANAGEMENT参数来控制的,但是即使STANDBY_FILE_MANAGEMENT设置为auto,对于rename操作,standby还是忽略的. If you do not rename the corresponding datafile at the standby system, and then try torefresh the…
How to Change the DBID, DBNAME Using NID Utility (Doc ID 863800.1) Changing the DBID and Database Name (DB_NAME) : 1. Ensure you have valid cold/hot backup of database. If it's a hot backup (RMAN or OS), ensure you also have all the archived logs and…
1. Copy or remotely mount the backupset folder from the source server to the target server 2. On the target server, export ORACLE_SID as same as the source database and run "rman target /" 3. Restore spfile from backup: RMAN> startup nomount;…