本文章来总结mysql数据备份方法,一种是大家常用的利用mysqldump命令方式进行数据备份,另一种是利用dos的xcopy命令带windows计划任务进行自动备份。
利用命令方式xcopy命令,把下面代码保存成bak.bat文件。
代码如下 | 复制代码 |
net stop mysql xcopy D:/phpStudy/MySQL/data/sql111cn/*.* D:/db_backup/%date:~0,10%/ /y net start mysql |
然后在你的服务器中做计划任务就可以实现自动备份数据库了,
利用mysqldump命令方式进行数据备份
备份数据库:
在命令提示符窗口(注意不是 MySQL 的 MySQL Command Line Client 窗口)中输入,
代码如下 | 复制代码 |
mysqldump -hlocalhost -uroot -proot temp > temp_2011.sql |
先进入到 MySQL想要存放备份文件的目录下(便于存放生成的*.sql文件).
恢复数据库:
删除原有数据库,建立数据库,把备份数据库导入。
代码如下 | 复制代码 |
mysqladmin -uroot -p123456 drop database_name mysqladmin -uroot -p123456 create database_name mysql -uroot -p123456 database_name |
上面可以做一个.php文件,然后利用计划任务进行定时执行就可以备份了。
常用的mysql备份数据命令语句分享
备份MySQL数据库的命令
代码如下 | 复制代码 |
mysqldump -hhostname -uusername -ppassword databasename > backupfile.sql |
备份MySQL数据库为带删除表的格式
备份MySQL数据库为带删除表的格式,能够让该备份覆盖已有数据库而不需要手动删除原有数据库。
代码如下 | 复制代码 |
mysqldump -–add-drop-table -uusername -ppassword databasename > backupfile.sql |
直接将MySQL数据库压缩备份
代码如下 | 复制代码 |
mysqldump -hhostname -uusername -ppassword databasename | gzip > backupfile.sql.gz |
备份MySQL数据库某个(些)表
代码如下 | 复制代码 |
mysqldump -hhostname -uusername -ppassword databasename specific_table1 specific_table2 > backupfile.sql |
同时备份多个MySQL数据库
代码如下 | 复制代码 |
mysqldump -hhostname -uusername -ppassword –databases databasename1 databasename2 databasename3 > multibackupfile.sql |
仅仅备份数据库结构
代码如下 | 复制代码 |
mysqldump –no-data –databases databasename1 databasename2 databasename3 > structurebackupfile.sql |
备份服务器上所有数据库
代码如下 | 复制代码 |
mysqldump –all-databases > allbackupfile.sql |
还原MySQL数据库的命令
代码如下 | 复制代码 |
mysql -hhostname -uusername -ppassword databasename |
还原压缩的MySQL数据库
代码如下 | 复制代码 |
gunzip |
将数据库转移到新服务器
代码如下 | 复制代码 |
mysqldump -uusername -ppassword databasename | mysql –host=*.*.*.* -C databasename |

InnoDBBufferPool reduces disk I/O by caching data and indexing pages, improving database performance. Its working principle includes: 1. Data reading: Read data from BufferPool; 2. Data writing: After modifying the data, write to BufferPool and refresh it to disk regularly; 3. Cache management: Use the LRU algorithm to manage cache pages; 4. Reading mechanism: Load adjacent data pages in advance. By sizing the BufferPool and using multiple instances, database performance can be optimized.

Compared with other programming languages, MySQL is mainly used to store and manage data, while other languages such as Python, Java, and C are used for logical processing and application development. MySQL is known for its high performance, scalability and cross-platform support, suitable for data management needs, while other languages have advantages in their respective fields such as data analytics, enterprise applications, and system programming.

MySQL is worth learning because it is a powerful open source database management system suitable for data storage, management and analysis. 1) MySQL is a relational database that uses SQL to operate data and is suitable for structured data management. 2) The SQL language is the key to interacting with MySQL and supports CRUD operations. 3) The working principle of MySQL includes client/server architecture, storage engine and query optimizer. 4) Basic usage includes creating databases and tables, and advanced usage involves joining tables using JOIN. 5) Common errors include syntax errors and permission issues, and debugging skills include checking syntax and using EXPLAIN commands. 6) Performance optimization involves the use of indexes, optimization of SQL statements and regular maintenance of databases.

MySQL is suitable for beginners to learn database skills. 1. Install MySQL server and client tools. 2. Understand basic SQL queries, such as SELECT. 3. Master data operations: create tables, insert, update, and delete data. 4. Learn advanced skills: subquery and window functions. 5. Debugging and optimization: Check syntax, use indexes, avoid SELECT*, and use LIMIT.

MySQL efficiently manages structured data through table structure and SQL query, and implements inter-table relationships through foreign keys. 1. Define the data format and type when creating a table. 2. Use foreign keys to establish relationships between tables. 3. Improve performance through indexing and query optimization. 4. Regularly backup and monitor databases to ensure data security and performance optimization.

MySQL is an open source relational database management system that is widely used in Web development. Its key features include: 1. Supports multiple storage engines, such as InnoDB and MyISAM, suitable for different scenarios; 2. Provides master-slave replication functions to facilitate load balancing and data backup; 3. Improve query efficiency through query optimization and index use.

SQL is used to interact with MySQL database to realize data addition, deletion, modification, inspection and database design. 1) SQL performs data operations through SELECT, INSERT, UPDATE, DELETE statements; 2) Use CREATE, ALTER, DROP statements for database design and management; 3) Complex queries and data analysis are implemented through SQL to improve business decision-making efficiency.

The basic operations of MySQL include creating databases, tables, and using SQL to perform CRUD operations on data. 1. Create a database: CREATEDATABASEmy_first_db; 2. Create a table: CREATETABLEbooks(idINTAUTO_INCREMENTPRIMARYKEY, titleVARCHAR(100)NOTNULL, authorVARCHAR(100)NOTNULL, published_yearINT); 3. Insert data: INSERTINTObooks(title, author, published_year)VA


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

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

Hot Article

Hot Tools

Atom editor mac version download
The most popular open source editor

SublimeText3 Linux new version
SublimeText3 Linux latest version

SublimeText3 Mac version
God-level code editing software (SublimeText3)

SublimeText3 English version
Recommended: Win version, supports code prompts!

SAP NetWeaver Server Adapter for Eclipse
Integrate Eclipse with SAP NetWeaver application server.