Home Database Mysql Tutorial 手工创建多路重做日志组

手工创建多路重做日志组

Jun 07, 2016 pm 05:16 PM
oracle database

查看日志的相关命令:1、查看日志成员信息Sqlgt;select group#,member,status from v$logfile order by group#;2、查看日志组信

查看日志的相关命令:
1、查看日志成员信息
Sql>select group#,member,status from v$logfile order by group#;
2、查看日志组信息以及当前正在使用的日志组
   Sql>select * from v$log;
3、添加日志组
   Sql>alter database add logfile group 4 (
‘/database/oradata/yang/redo04.log’,
’/database/oradata/yang/redo044.log’) size 50m;
   4、添加日志成员
      Sql>alter database add logfile member
          ‘/database/oradata/yang/redo05.log’ to group 5;
5、删除日志成员
 Sql>alter database drop logfile member
‘/database/oradata/yang/redo05.log’;
6、删除日志组
 Sql>alter database drop logfile group 5;
7、手工在操作系统下删除Oracle日志组成员后,需要再手动删除控制文件里的记录 不然启动系统时在警告文件中会报错。
手工删除控制文件中日志成员信息:
Sql>alter database drop logfile member
‘/db/oracle/oradata/yang/redo05.log’;
   8、重命名日志文件
Sql>alter database rename file ‘/db/oracle/oradata/yang/redo01.log’
    To ‘/db/oracle/oradata/yang/redo011.log’;
备注:每个日志组中至少含有两个成员,,日志组至少两个,建议创建五个日志组。
9、修改数据库为归档模式
 Sql>archive log list   查看数据库归档模式
 Sql>shutdown immediate   正常关闭数据库
 Sql>startup mount 启动数据库到mount状态
 Sql>alter database archivelog   设置数据库为归档模式
 Sql>alter database open;     打开数据库
10、归档日志路径重定向或多路归档日志
   Sql>show parameter recover 查看快速恢复区的大小默认为2G
   Sql>show parameter archive 查看归档日志路径
  Sql>alter system set log_archive_dest_1=’ location=
/home/oracle/archivelog’; 归档日志保存路径一
 Sql>alter system set log_archive_dest_2=
’location= USE_DB_RECOVERY_FILE_DEST’;
归档日志保存路径二

linux

Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

MySQL: An Introduction to the World's Most Popular Database MySQL: An Introduction to the World's Most Popular Database Apr 12, 2025 am 12:18 AM

MySQL is an open source relational database management system, mainly used to store and retrieve data quickly and reliably. Its working principle includes client requests, query resolution, execution of queries and return results. Examples of usage include creating tables, inserting and querying data, and advanced features such as JOIN operations. Common errors involve SQL syntax, data types, and permissions, and optimization suggestions include the use of indexes, optimized queries, and partitioning of tables.

What to do if the oracle can't be opened What to do if the oracle can't be opened Apr 11, 2025 pm 10:06 PM

Solutions to Oracle cannot be opened include: 1. Start the database service; 2. Start the listener; 3. Check port conflicts; 4. Set environment variables correctly; 5. Make sure the firewall or antivirus software does not block the connection; 6. Check whether the server is closed; 7. Use RMAN to recover corrupt files; 8. Check whether the TNS service name is correct; 9. Check network connection; 10. Reinstall Oracle software.

Why Use MySQL? Benefits and Advantages Why Use MySQL? Benefits and Advantages Apr 12, 2025 am 12:17 AM

MySQL is chosen for its performance, reliability, ease of use, and community support. 1.MySQL provides efficient data storage and retrieval functions, supporting multiple data types and advanced query operations. 2. Adopt client-server architecture and multiple storage engines to support transaction and query optimization. 3. Easy to use, supports a variety of operating systems and programming languages. 4. Have strong community support and provide rich resources and solutions.

How to solve the problem of closing oracle cursor How to solve the problem of closing oracle cursor Apr 11, 2025 pm 10:18 PM

The method to solve the Oracle cursor closure problem includes: explicitly closing the cursor using the CLOSE statement. Declare the cursor in the FOR UPDATE clause so that it automatically closes after the scope is ended. Declare the cursor in the USING clause so that it automatically closes when the associated PL/SQL variable is closed. Use exception handling to ensure that the cursor is closed in any exception situation. Use the connection pool to automatically close the cursor. Disable automatic submission and delay cursor closing.

How to create cursors in oracle loop How to create cursors in oracle loop Apr 12, 2025 am 06:18 AM

In Oracle, the FOR LOOP loop can create cursors dynamically. The steps are: 1. Define the cursor type; 2. Create the loop; 3. Create the cursor dynamically; 4. Execute the cursor; 5. Close the cursor. Example: A cursor can be created cycle-by-circuit to display the names and salaries of the top 10 employees.

How to stop oracle database How to stop oracle database Apr 12, 2025 am 06:12 AM

To stop an Oracle database, perform the following steps: 1. Connect to the database; 2. Shutdown immediately; 3. Shutdown abort completely.

Oracle's Role in the Business World Oracle's Role in the Business World Apr 23, 2025 am 12:01 AM

Oracle is not only a database company, but also a leader in cloud computing and ERP systems. 1. Oracle provides comprehensive solutions from database to cloud services and ERP systems. 2. OracleCloud challenges AWS and Azure, providing IaaS, PaaS and SaaS services. 3. Oracle's ERP systems such as E-BusinessSuite and FusionApplications help enterprises optimize operations.

What steps are required to configure CentOS in HDFS What steps are required to configure CentOS in HDFS Apr 14, 2025 pm 06:42 PM

Building a Hadoop Distributed File System (HDFS) on a CentOS system requires multiple steps. This article provides a brief configuration guide. 1. Prepare to install JDK in the early stage: Install JavaDevelopmentKit (JDK) on all nodes, and the version must be compatible with Hadoop. The installation package can be downloaded from the Oracle official website. Environment variable configuration: Edit /etc/profile file, set Java and Hadoop environment variables, so that the system can find the installation path of JDK and Hadoop. 2. Security configuration: SSH password-free login to generate SSH key: Use the ssh-keygen command on each node

See all articles