In this Document Goal Solution Applies to: Oracle Database - Enterprise Edition - Version 10.2.0.1 to 11.2.0.4 [Release 10.2 to 11.2] Information in this document applies to any platform. Goal What are the steps to move the RAC database OR
In this Document
Goal |
Solution |
Applies to:
Oracle Database - Enterprise Edition - Version 10.2.0.1 to 11.2.0.4 [Release 10.2 to 11.2]Information in this document applies to any platform.
Goal
What are the steps to move the RAC database ORACLE_HOME from one location(filesystem) to another one?
This note is for database home only and does not apply to CRS or GI home.
Solution
Execute all the following as database user:
Solution 1:
1. Install a new set of RAC binaries with OUI into a new home
2. Apply all patches that have been installed in the old home, use "opatch lsinventory" to compare the old and new home once all patches are applied.
3. Copy over init{ORACLE_SID}.ora in dbs directory from the old home to the new home on all nodes
4. Copy over network files (listener.ora, tnsnames.ora, and sqlnet.ora) in network/admin directory from the old home to the new home on all nodes
5. Shutdown the database with srvctl from the old database home: srvctl stop database -d
6. Modify the database resource as with srvctl from the old database home: srvctl modify database -d -o
7. Start the database with srvctl from the new database home: srvctl start database -d
Solution 2: (Clone)
1. Copy existing RAC binaries to a new location and keep the same ownership/permission on any node: cp -rp
2. Execute:
3. Extend the new home to other nodes:
4. Go to Step3 of "Solution 1"

discuz database error的解决办法有:1、检查数据库配置;2、确保数据库服务器正在运行;3、检查数据库表状态;4、备份数据;5、清理缓存;6、重新安装Discuz;7、检查服务器资源;8、联系Discuz官方支持。解决Discuz数据库错误需要从多个方面入手,逐步排查问题原因,并采取相应的措施进行修复。

IntelArrowLakeisexpectedtobebasedonthesameprocessorarchitectureasLunarLake,meaningthatIntel'sbrandnewLionCoveperformancecoreswillbecombinedwiththeeconomicalSkymontefficiencycores.WhileLunarLakeisonlyavailableasava

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在oracle中,可以利用“TO_SINGLE_BYTE(String)”将全角转换为半角;“TO_SINGLE_BYTE”函数可以将参数中所有多字节字符都替换为等价的单字节字符,只有当数据库字符集同时包含多字节和单字节字符的时候有效。

在Oracle中,可利用lsnrctl命令查询端口号,该命令是Oracle的监听命令;在启动、关闭或重启oracle监听器之前可使用该命令检查oracle监听器的状态,语法为“lsnrctl status”,结果PORT后的内容就是端口号。

在oracle中,可以利用“drop sequence sequence名”来删除sequence;sequence是自动增加数字序列的意思,也就是序列号,序列号自动增加不能重置,因此需要利用drop sequence语句来删除序列。

在oracle中,可以利用“select ... From all_tab_columns where table_name=upper('表名') AND owner=upper('数据库登录用户名');”语句查询数据库表的数据类型。

方法:1、利用“LOWER(字段值)”将字段转为小写,或者利用“UPPER(字段值)”将字段转为大写;2、利用“REGEXP_LIKE(字符串,正则表达式,'i')”,当参数设置为“i”时,说明进行匹配不区分大小写。


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