使用可传输表空间的特性复制数据
可传输表空间的限制：传输表空间技术不能应用于system表空间或sys用户拥有的对象。在传输表空间中，要求表空间为自包含的，自包含
可传输表空间的限制：传输表空间技术不能应用于system表空间或sys用户拥有的对象。在传输表空间中，要求表空间为自包含的，自包含表示用于传输的内部表空间集没有引用指向外部表空间集。
可传输表空间实验环境
OS IP SID 存储方式 表空间 用户 表
源数据库 RedHat5.4 10.10.10.8 orcl 文件系统 tb1，tb2 u1，u2
t1，t2
目标数据库 redhat5.4 10.10.10.7 orcl ASM —— u1，u2 ——
说明：在源数据库上用户u1使用的是tb1表空间，里面有一张t1表。使用exp/imp来传输；在源数据库上用户u2使用的是tb2表空间，里面有一张t2表。使用expdp/impdp来传输。
下面给出创建测试环境的脚本（源数据库上面执行的操作）
可传输表空间实战
1.确认要传输表空间的平台是否兼容（源数据库和目标数据库上面都一样，因为都是redhat5.4的OS）
2.确认传输的表空间是否自包含（源数据库上面执行的操作）
说明：严格方式不只检查表空间集引用的对象（比如表）是否自包含，同时会检查被其它表空间引用的对象(比如索引等)，引用者是否在表空间集中。如果待传输表空间是非自包含，可以将多个表空间一起传输。
3.将待传输表空间设置为只读（源数据库上面执行的操作）
4.导出表空间集元数据（源数据库上面执行的操作）
5.转换字节顺序，如果两个平台的字节顺序不一样，中间需要一个转换过程，可以使用rman。（可选操作，，这里并没有执行。）
说明：这就是第一步检查的目的，虽然这里并不需要转换。这里给出的只是转换的方法。
6.复制元数据和数据文件到目标数据库（目标数据库上面执行的操作）
7.修改源数据库的表空间为读写（源数据库上面执行的操作）
8.检查源表空间和目标数据库的块大小是否一样
源数据库
目标数据库
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
AI Hentai Generator
Generate AI Hentai for free.
Hot Article
Hot Tools
Notepad++7.3.1
Easy-to-use and free code editor
SublimeText3 Chinese version
Chinese version, very easy to use
Zend Studio 13.0.1
Powerful PHP integrated development environment
Dreamweaver CS6
Visual web development tools
SublimeText3 Mac version
God-level code editing software (SublimeText3)
Hot Topics
iOS 18 adds a new 'Recovered' album function to retrieve lost or damaged photos
Jul 18, 2024 am 05:48 AM
Apple's latest releases of iOS18, iPadOS18 and macOS Sequoia systems have added an important feature to the Photos application, designed to help users easily recover photos and videos lost or damaged due to various reasons. The new feature introduces an album called "Recovered" in the Tools section of the Photos app that will automatically appear when a user has pictures or videos on their device that are not part of their photo library. The emergence of the "Recovered" album provides a solution for photos and videos lost due to database corruption, the camera application not saving to the photo library correctly, or a third-party application managing the photo library. Users only need a few simple steps
Detailed tutorial on establishing a database connection using MySQLi in PHP
Jun 04, 2024 pm 01:42 PM
How to use MySQLi to establish a database connection in PHP: Include MySQLi extension (require_once) Create connection function (functionconnect_to_db) Call connection function ($conn=connect_to_db()) Execute query ($result=$conn->query()) Close connection ( $conn->close())
How to handle database connection errors in PHP
Jun 05, 2024 pm 02:16 PM
To handle database connection errors in PHP, you can use the following steps: Use mysqli_connect_errno() to obtain the error code. Use mysqli_connect_error() to get the error message. By capturing and logging these error messages, database connection issues can be easily identified and resolved, ensuring the smooth running of your application.
How does Go WebSocket integrate with databases?
Jun 05, 2024 pm 03:18 PM
How to integrate GoWebSocket with a database: Set up a database connection: Use the database/sql package to connect to the database. Store WebSocket messages to the database: Use the INSERT statement to insert the message into the database. Retrieve WebSocket messages from the database: Use the SELECT statement to retrieve messages from the database.
How to use database callback functions in Golang?
Jun 03, 2024 pm 02:20 PM
Using the database callback function in Golang can achieve: executing custom code after the specified database operation is completed. Add custom behavior through separate functions without writing additional code. Callback functions are available for insert, update, delete, and query operations. You must use the sql.Exec, sql.QueryRow, or sql.Query function to use the callback function.
How to handle database connections and operations using C++?
Jun 01, 2024 pm 07:24 PM
Use the DataAccessObjects (DAO) library in C++ to connect and operate the database, including establishing database connections, executing SQL queries, inserting new records and updating existing records. The specific steps are: 1. Include necessary library statements; 2. Open the database file; 3. Create a Recordset object to execute SQL queries or manipulate data; 4. Traverse the results or update records according to specific needs.
PHP connections to different databases: MySQL, PostgreSQL, Oracle and more
Jun 01, 2024 pm 03:02 PM
PHP database connection guide: MySQL: Install the MySQLi extension and create a connection (servername, username, password, dbname). PostgreSQL: Install the PgSQL extension and create a connection (host, dbname, user, password). Oracle: Install the OracleOCI8 extension and create a connection (servername, username, password). Practical case: Obtain MySQL data, PostgreSQL query, OracleOCI8 update record.
How to install and register the btc trading app?
Feb 21, 2025 pm 07:09 PM
This article will provide a detailed introduction to how to install and register a Bitcoin trading application. The Bitcoin trading app allows users to manage and trade cryptocurrencies such as Bitcoin. The article guides users through the installation and registration process step by step, including downloading applications, creating accounts, performing identity verification, and first deposit. The goal of the article is to provide beginners with clear and easy-to-understand guidelines to help them easily enter the world of Bitcoin trading.
