Home Database Mysql Tutorial 移动Oracle表空间数据文件方案

移动Oracle表空间数据文件方案

Jun 07, 2016 pm 04:50 PM

方案一:移动常规表空间(非系统表空间)数据文件 /**************数据库服务器某个磁盘空间不足时移动常规表空间数据文件********

方案一:移动常规表空间(非系统表空间)数据文件

/**************数据库服务器某个磁盘空间不足时移动常规表空间数据文件*****************/

1、使用范围:该操作在数据库正常运行(open状态)的条件下进行,但不能移动系统表空间里面的数据文件

2、步骤(windows系统下的操作):

1>准备工作:

C:\ sqlplus/nolog

SQL>connect sys/qazwsxedc@实例名 as sysdba;

2>使表空间脱机:

SQL>alter tablespace TABS offline normal;

3>将表空间数据文件复制到比较空闲的磁盘:

例如:将D:\YAG_DB\ABS.ora 复制到E:\NEW\ABS.ora

4>执行alter tablespace rename datafile命令:

SQL>alter tablespace ABS rename datafile 'D:\YAG_DB\ABS.ora ' to 'E:\NEW\ABS.ora';

执行完,,会显示表空间已经更改(此命令的实际是修改控制文件中表空间数据文件的指针)

5>使表空间联机:

SQL>alter tablespace ABS online;

6>此时可删除D:\YAG_DB\ABS.ora

7>重启数据库:

SQL>shutdown immediate

SQL>startup

方案二:移动常系统表空间数据文件

/****************数据库服务器某个磁盘空间不足时移动系统表空间数据文件*****************/

1、使用范围:该操作在数据库处于mount 状态才能进行,可移动系统表空间的数据文件

2、步骤(Linux系统中的操作):

1># su - Oracle --切换到oracle用户下

2># sqlplus /nolog

3>SQL>conn sys/pwd as sysdba

4>SQL>shutdown immediate --数据库在启动状态时,先关闭

5>SQL>startup mount --将数据库启动为mount状态

6>将要移动的系统表空间数据文件复制到比较空闲的分区目录

eg:# mv /home/app/oracle/oradata/ORACLE_SID/system01.dbf /data/YAG_DB/ORACLE_SID

7>使用alter database rename file 命令

SQL>alter database rename file '/home/app/oracle/oradata/ORACLE_SID/system01.dbf' to '/data/YAG_DB/ORACLE_SID/system01.dbf';

8>打开数据库

SQL>alter databse open

9>检查系统表空间的文件路径是否正确

SQL>select file#,name,status From v$datafile; --system系统表空间的文件路径name应为刚刚更改的路径

Linux-6-64下安装Oracle 12C笔记

RHEL6.4_64安装单实例Oracle 12cR1

Oracle 12C新特性之翻页查询

解读 Oracle 12C 的 12 个新特性

本文永久更新链接地址:

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)

When might a full table scan be faster than using an index in MySQL? When might a full table scan be faster than using an index in MySQL? Apr 09, 2025 am 12:05 AM

Full table scanning may be faster in MySQL than using indexes. Specific cases include: 1) the data volume is small; 2) when the query returns a large amount of data; 3) when the index column is not highly selective; 4) when the complex query. By analyzing query plans, optimizing indexes, avoiding over-index and regularly maintaining tables, you can make the best choices in practical applications.

Explain InnoDB Full-Text Search capabilities. Explain InnoDB Full-Text Search capabilities. Apr 02, 2025 pm 06:09 PM

InnoDB's full-text search capabilities are very powerful, which can significantly improve database query efficiency and ability to process large amounts of text data. 1) InnoDB implements full-text search through inverted indexing, supporting basic and advanced search queries. 2) Use MATCH and AGAINST keywords to search, support Boolean mode and phrase search. 3) Optimization methods include using word segmentation technology, periodic rebuilding of indexes and adjusting cache size to improve performance and accuracy.

Can I install mysql on Windows 7 Can I install mysql on Windows 7 Apr 08, 2025 pm 03:21 PM

Yes, MySQL can be installed on Windows 7, and although Microsoft has stopped supporting Windows 7, MySQL is still compatible with it. However, the following points should be noted during the installation process: Download the MySQL installer for Windows. Select the appropriate version of MySQL (community or enterprise). Select the appropriate installation directory and character set during the installation process. Set the root user password and keep it properly. Connect to the database for testing. Note the compatibility and security issues on Windows 7, and it is recommended to upgrade to a supported operating system.

Difference between clustered index and non-clustered index (secondary index) in InnoDB. Difference between clustered index and non-clustered index (secondary index) in InnoDB. Apr 02, 2025 pm 06:25 PM

The difference between clustered index and non-clustered index is: 1. Clustered index stores data rows in the index structure, which is suitable for querying by primary key and range. 2. The non-clustered index stores index key values ​​and pointers to data rows, and is suitable for non-primary key column queries.

What are some popular MySQL GUI tools (e.g., MySQL Workbench, phpMyAdmin)? What are some popular MySQL GUI tools (e.g., MySQL Workbench, phpMyAdmin)? Mar 21, 2025 pm 06:28 PM

Article discusses popular MySQL GUI tools like MySQL Workbench and phpMyAdmin, comparing their features and suitability for beginners and advanced users.[159 characters]

How do you handle large datasets in MySQL? How do you handle large datasets in MySQL? Mar 21, 2025 pm 12:15 PM

Article discusses strategies for handling large datasets in MySQL, including partitioning, sharding, indexing, and query optimization.

MySQL: Simple Concepts for Easy Learning MySQL: Simple Concepts for Easy Learning Apr 10, 2025 am 09:29 AM

MySQL is an open source relational database management system. 1) Create database and tables: Use the CREATEDATABASE and CREATETABLE commands. 2) Basic operations: INSERT, UPDATE, DELETE and SELECT. 3) Advanced operations: JOIN, subquery and transaction processing. 4) Debugging skills: Check syntax, data type and permissions. 5) Optimization suggestions: Use indexes, avoid SELECT* and use transactions.

The relationship between mysql user and database The relationship between mysql user and database Apr 08, 2025 pm 07:15 PM

In MySQL database, the relationship between the user and the database is defined by permissions and tables. The user has a username and password to access the database. Permissions are granted through the GRANT command, while the table is created by the CREATE TABLE command. To establish a relationship between a user and a database, you need to create a database, create a user, and then grant permissions.

See all articles