在使用mysqldump备份MySQL时,备份文件是SQL格式的文本文件,它由一系列create table和insert语句组成。恢复时,只要把该SQL文件
在使用mysqldump备份MySQL时,备份文件是SQL格式的文本文件,它由一系列create table和insert语句组成。恢复时,只要把该SQL文件作为mysql程序的输入即可,如下所示:
mysqldump mydb mytbl > mytbl.sql
mysql mydb
注意:千万不要试图用mysqlimport加载由mysqldump生成的备份文件!mysqlimport只能读取数据行,不能用来读取SQL语句。
当你在命令行下敲mysqldump,后面不加如何参数,将出现如下的提示信息:
[root@lx203 ~]# mysqldump
Usage: mysqldump [OPTIONS] database [tables]
OR mysqldump [OPTIONS] --databases [OPTIONS] DB1 [DB2 DB3...]
OR mysqldump [OPTIONS] --all-databases [OPTIONS]
For more options, use mysqldump --help
上面的提示信息给出了3种使用方法,下面我们将一一介绍:
1)mysqldump [OPTIONS] database [tables]
这是最常见的使用方法,给出一个数据库名,在它后面给出一个或多个表名,表示导出该数据库下指定的这几个表。
2)mysqldump [OPTIONS] --databases [OPTIONS] DB1 [DB2 DB3...]
第二种方法使用了--databases参数,它将导出列出的数据库里的所有表
3)mysqldump [OPTIONS] --all-databases [OPTIONS]
--all-databases参数表示导出所有数据库里的所有表,,包括mysql数据库里的权限表,所以一定要谨慎使用
更多详情见请继续阅读下一页的精彩内容:
相关阅读:
Linux下通过mysqldump备份MySQL数据库成sql文件
Linux中使用mysqldump对MySQL数据库进行定时备份
mysqldump缺失-q参数导致MySQL被oom干掉
mysqldump和LVM逻辑卷快照
MySQL备份方案-->(利用mysqldump以及binlog二进制日志)

The article discusses using MySQL's ALTER TABLE statement to modify tables, including adding/dropping columns, renaming tables/columns, and changing column data types.

Article discusses configuring SSL/TLS encryption for MySQL, including certificate generation and verification. Main issue is using self-signed certificates' security implications.[Character count: 159]

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

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

The article discusses dropping tables in MySQL using the DROP TABLE statement, emphasizing precautions and risks. It highlights that the action is irreversible without backups, detailing recovery methods and potential production environment hazards.

Article discusses using foreign keys to represent relationships in databases, focusing on best practices, data integrity, and common pitfalls to avoid.

The article discusses creating indexes on JSON columns in various databases like PostgreSQL, MySQL, and MongoDB to enhance query performance. It explains the syntax and benefits of indexing specific JSON paths, and lists supported database systems.

Article discusses securing MySQL against SQL injection and brute-force attacks using prepared statements, input validation, and strong password policies.(159 characters)


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

SublimeText3 Chinese version
Chinese version, very easy to use

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

VSCode Windows 64-bit Download
A free and powerful IDE editor launched by Microsoft

Dreamweaver CS6
Visual web development tools

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