search
HomeDatabaseMysql TutorialMysql数据库安装完成后需要进行的6个后续操作_MySQL

在服务器上安装好mysql之后,一般都需要做下面几件事情:

1. 启动mysql server
2. 设置root用户和添加一些访问用户
3. 设置用户权限
4. 配置非本地连接访问
5. 备份数据或者迁移数据
6. 一些注意事项(不断更新)


一、启动mysql server
通常情况下,我们使用的启动命令是:
复制代码 代码如下:service mysqld start

常见的一个问题就是抛:Timeout error occurred trying to start MySQL Daemon 

解决的办法也很简单:直接执行即可 
复制代码 代码如下:/usr/bin/mysql_install_db 

目录可能会不一样,这个默认安装一般就在这里。

查看mysql的服务状态:
复制代码 代码如下:
/etc/rc.d/init.d/mysqld status


二、设置root用户和添加一些访问用户
默认安装后,mysql的root账户是没有密码的。一般为了安全,都会给root设置一个密码:
复制代码 代码如下:
mysql> update user set password=PASSWORD('123456′) where User='root';
Query OK, 4 rows affected (0.00 sec)
Rows matched: 4  Changed: 4  Warnings: 0
mysql> FLUSH PRIVILEGES;
Query OK, 0 rows affected (0.00 sec)

三、设置用户权限
当然,mysql是提供给用户使用的,需要新增一个用户给大家使用:
复制代码 代码如下:
mysql> insert into mysql.user(Host,User,Password) values(‘localhost','admin',password(“admin”));
Query OK, 1 row affected, 3 warnings (0.01 sec)
mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)

现在新增了一个用户 admin/admin, 但是用户暂时还没有分配任何的权限。
复制代码 代码如下:
mysql> grant ALL on *.* to admin@”%” Identified by “admin”;
Query OK, 0 rows affected (0.00 sec)

%代表任何主机,当然也可以只赋予:select,insert,update,delete 这些操作权限:
复制代码 代码如下:
mysql> grant select,insert,update,delete on *.* to admin@”%” Identified by “admin”;
Query OK, 0 rows affected (0.00 sec)
mysql> FLUSH PRIVILEGES;
Query OK, 0 rows affected (0.00 sec)

四、配置非本地连接访问
   默认情况下,远程用户访问本地的数据库是不背允许的,需要执行命令,赋予任何主机或相关主机访问数据的权限:
复制代码 代码如下:
   mysql> update user set host = ‘%' where user = ‘admin';

   在任何主机上都可以使用admin这个用户访问数据。

   或者:
复制代码 代码如下:
   mysql> GRANT ALL PRIVILEGES ON *.* TO ‘root'@'%' WITH GRANT OPTION

五、备份数据或者迁移数据
     一般使用mysqldump比较方便

六、注意事项
      linux下mysql默认表名是要区分大小写的,如果需要改称不区分大小写的,需要按下面步骤修改。

1). 用root登录,修改 /etc/my.cnf
2). 在[mysqld]下加入一行: lower_case_table_names=1
3). 重新启动数据库即可    

Statement
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
What are some tools you can use to monitor MySQL performance?What are some tools you can use to monitor MySQL performance?Apr 23, 2025 am 12:21 AM

How to effectively monitor MySQL performance? Use tools such as mysqladmin, SHOWGLOBALSTATUS, PerconaMonitoring and Management (PMM), and MySQL EnterpriseMonitor. 1. Use mysqladmin to view the number of connections. 2. Use SHOWGLOBALSTATUS to view the query number. 3.PMM provides detailed performance data and graphical interface. 4.MySQLEnterpriseMonitor provides rich monitoring functions and alarm mechanisms.

How does MySQL differ from SQL Server?How does MySQL differ from SQL Server?Apr 23, 2025 am 12:20 AM

The difference between MySQL and SQLServer is: 1) MySQL is open source and suitable for web and embedded systems, 2) SQLServer is a commercial product of Microsoft and is suitable for enterprise-level applications. There are significant differences between the two in storage engine, performance optimization and application scenarios. When choosing, you need to consider project size and future scalability.

In what scenarios might you choose SQL Server over MySQL?In what scenarios might you choose SQL Server over MySQL?Apr 23, 2025 am 12:20 AM

In enterprise-level application scenarios that require high availability, advanced security and good integration, SQLServer should be chosen instead of MySQL. 1) SQLServer provides enterprise-level features such as high availability and advanced security. 2) It is closely integrated with Microsoft ecosystems such as VisualStudio and PowerBI. 3) SQLServer performs excellent in performance optimization and supports memory-optimized tables and column storage indexes.

How does MySQL handle character sets and collations?How does MySQL handle character sets and collations?Apr 23, 2025 am 12:19 AM

MySQLmanagescharactersetsandcollationsbyusingUTF-8asthedefault,allowingconfigurationatdatabase,table,andcolumnlevels,andrequiringcarefulalignmenttoavoidmismatches.1)Setdefaultcharactersetandcollationforadatabase.2)Configurecharactersetandcollationfor

What are triggers in MySQL?What are triggers in MySQL?Apr 23, 2025 am 12:11 AM

A MySQL trigger is an automatically executed stored procedure associated with a table that is used to perform a series of operations when a specific data operation is performed. 1) Trigger definition and function: used for data verification, logging, etc. 2) Working principle: It is divided into BEFORE and AFTER, and supports row-level triggering. 3) Example of use: Can be used to record salary changes or update inventory. 4) Debugging skills: Use SHOWTRIGGERS and SHOWCREATETRIGGER commands. 5) Performance optimization: Avoid complex operations, use indexes, and manage transactions.

How do you create and manage user accounts in MySQL?How do you create and manage user accounts in MySQL?Apr 22, 2025 pm 06:05 PM

The steps to create and manage user accounts in MySQL are as follows: 1. Create a user: Use CREATEUSER'newuser'@'localhost'IDENTIFIEDBY'password'; 2. Assign permissions: Use GRANTSELECT, INSERT, UPDATEONmydatabase.TO'newuser'@'localhost'; 3. Fix permission error: Use REVOKEALLPRIVILEGESONmydatabase.FROM'newuser'@'localhost'; then reassign permissions; 4. Optimization permissions: Use SHOWGRA

How does MySQL differ from Oracle?How does MySQL differ from Oracle?Apr 22, 2025 pm 05:57 PM

MySQL is suitable for rapid development and small and medium-sized applications, while Oracle is suitable for large enterprises and high availability needs. 1) MySQL is open source and easy to use, suitable for web applications and small and medium-sized enterprises. 2) Oracle is powerful and suitable for large enterprises and government agencies. 3) MySQL supports a variety of storage engines, and Oracle provides rich enterprise-level functions.

What are the disadvantages of using MySQL compared to other relational databases?What are the disadvantages of using MySQL compared to other relational databases?Apr 22, 2025 pm 05:49 PM

The disadvantages of MySQL compared to other relational databases include: 1. Performance issues: You may encounter bottlenecks when processing large-scale data, and PostgreSQL performs better in complex queries and big data processing. 2. Scalability: The horizontal scaling ability is not as good as Google Spanner and Amazon Aurora. 3. Functional limitations: Not as good as PostgreSQL and Oracle in advanced functions, some functions require more custom code and maintenance.

See all articles

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

VSCode Windows 64-bit Download

VSCode Windows 64-bit Download

A free and powerful IDE editor launched by Microsoft

MinGW - Minimalist GNU for Windows

MinGW - Minimalist GNU for Windows

This project is in the process of being migrated to osdn.net/projects/mingw, you can continue to follow us there. MinGW: A native Windows port of the GNU Compiler Collection (GCC), freely distributable import libraries and header files for building native Windows applications; includes extensions to the MSVC runtime to support C99 functionality. All MinGW software can run on 64-bit Windows platforms.

mPDF

mPDF

mPDF is a PHP library that can generate PDF files from UTF-8 encoded HTML. The original author, Ian Back, wrote mPDF to output PDF files "on the fly" from his website and handle different languages. It is slower than original scripts like HTML2FPDF and produces larger files when using Unicode fonts, but supports CSS styles etc. and has a lot of enhancements. Supports almost all languages, including RTL (Arabic and Hebrew) and CJK (Chinese, Japanese and Korean). Supports nested block-level elements (such as P, DIV),

PhpStorm Mac version

PhpStorm Mac version

The latest (2018.2.1) professional PHP integrated development tool

SublimeText3 English version

SublimeText3 English version

Recommended: Win version, supports code prompts!