Home php教程 php手册 教你使用MySQL:MySQL常用命令一览

教你使用MySQL:MySQL常用命令一览

Jun 13, 2016 am 10:06 AM
mysql at a glance use Order how it Install Commonly used teach you have friend

有很多朋友虽然安装好了mysql但却不知如何使用它。在这篇文章中我们就从连接MYSQL、修改密码、增加用户等方面来学习一些MYSQL的常用命令。

一、连接MYSQL。

格式: mysql -h主机地址 -u用户名 -p用户密码

1、例1:连接到本机上的MYSQL。

首先在打开DOS窗口,然后进入目录 mysqlbin,再键入命令mysql -uroot
-p,回车后提示你输密码,如果刚安装好MYSQL,超级用户root是没有密码的,故直接回车即可进入到MYSQL中了,MYSQL的提示符是:mysql>

2、例2:连接到远程主机上的MYSQL。假设远程主机的IP为:110.110.110.110,用户名为root,密码为abcd123。则键入以下命令:

mysql -h110.110.110.110 -uroot -pabcd123

(注:u与root可以不用加空格,其它也一样)

3、退出MYSQL命令: exit (回车)

二、修改密码。

格式:mysqladmin -u用户名 -p旧密码 password 新密码

1、例1:给root加个密码ab12。首先在DOS下进入目录mysqlbin,然后键入以下命令

mysqladmin -uroot -password ab12

注:因为开始时root没有密码,所以-p旧密码一项就可以省略了。

2、例2:再将root的密码改为djg345。

mysqladmin -uroot -pab12 password djg345

三、增加新用户。(注意:和上面不同,下面的因为是MYSQL环境中的命令,所以后面都带一个分号作为命令结束符)

格式:grant select on 数据库.* to 用户名@登录主机 identified by
"密码"

例1、增加一个用户test1密码为abc,让他可以在任何主机上登录,并对所有数据库有查询、插入、修改、删除的权限。首先用以root用户连入MYSQL,然后键入以下命令:

grant select,insert,update,delete on *.* to

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

AI Hentai Generator

AI Hentai Generator

Generate AI Hentai for free.

Hot Article

R.E.P.O. Energy Crystals Explained and What They Do (Yellow Crystal)
3 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
R.E.P.O. Best Graphic Settings
3 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
R.E.P.O. How to Fix Audio if You Can't Hear Anyone
3 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
WWE 2K25: How To Unlock Everything In MyRise
4 weeks ago By 尊渡假赌尊渡假赌尊渡假赌

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)

MySQL: The Ease of Data Management for Beginners MySQL: The Ease of Data Management for Beginners Apr 09, 2025 am 12:07 AM

MySQL is suitable for beginners because it is simple to install, powerful and easy to manage data. 1. Simple installation and configuration, suitable for a variety of operating systems. 2. Support basic operations such as creating databases and tables, inserting, querying, updating and deleting data. 3. Provide advanced functions such as JOIN operations and subqueries. 4. Performance can be improved through indexing, query optimization and table partitioning. 5. Support backup, recovery and security measures to ensure data security and consistency.

Can I retrieve the database password in Navicat? Can I retrieve the database password in Navicat? Apr 08, 2025 pm 09:51 PM

Navicat itself does not store the database password, and can only retrieve the encrypted password. Solution: 1. Check the password manager; 2. Check Navicat's "Remember Password" function; 3. Reset the database password; 4. Contact the database administrator.

How to create navicat premium How to create navicat premium Apr 09, 2025 am 07:09 AM

Create a database using Navicat Premium: Connect to the database server and enter the connection parameters. Right-click on the server and select Create Database. Enter the name of the new database and the specified character set and collation. Connect to the new database and create the table in the Object Browser. Right-click on the table and select Insert Data to insert the data.

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.

MySQL and SQL: Essential Skills for Developers MySQL and SQL: Essential Skills for Developers Apr 10, 2025 am 09:30 AM

MySQL and SQL are essential skills for developers. 1.MySQL is an open source relational database management system, and SQL is the standard language used to manage and operate databases. 2.MySQL supports multiple storage engines through efficient data storage and retrieval functions, and SQL completes complex data operations through simple statements. 3. Examples of usage include basic queries and advanced queries, such as filtering and sorting by condition. 4. Common errors include syntax errors and performance issues, which can be optimized by checking SQL statements and using EXPLAIN commands. 5. Performance optimization techniques include using indexes, avoiding full table scanning, optimizing JOIN operations and improving code readability.

How to create a new connection to mysql in navicat How to create a new connection to mysql in navicat Apr 09, 2025 am 07:21 AM

You can create a new MySQL connection in Navicat by following the steps: Open the application and select New Connection (Ctrl N). Select "MySQL" as the connection type. Enter the hostname/IP address, port, username, and password. (Optional) Configure advanced options. Save the connection and enter the connection name.

How to open phpmyadmin How to open phpmyadmin Apr 10, 2025 pm 10:51 PM

You can open phpMyAdmin through the following steps: 1. Log in to the website control panel; 2. Find and click the phpMyAdmin icon; 3. Enter MySQL credentials; 4. Click "Login".

How to execute sql in navicat How to execute sql in navicat Apr 08, 2025 pm 11:42 PM

Steps to perform SQL in Navicat: Connect to the database. Create a SQL Editor window. Write SQL queries or scripts. Click the Run button to execute a query or script. View the results (if the query is executed).

See all articles