1.What is a database?

　Commonly known as a data warehouse, software (or program) that facilitates data management

2. Getting started with MySQL

1. Official website download

2. Install MySql

Just double-click to install, but please note that Chinese characters cannot appear in the installation directory.

　2.1 Verify whether the installation is successful

Open the command line-->Enter "mysql -u root -p" and press Enter, enter the password -->Enter

When the following content appears, it is considered successful.

　C:\Users\Administrator>mysql -u root -p
　Enter password: ******
　Welcome to the MySQL monitor. Commands end with ; or \g.
　Your MySQL connection id is 2
　Server version: 5.5.30 MySQL Community Server ( GPL)

Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

　mysql>

## 3. Uninstall MySQL (taking Win7 system as an example)

a. Stop the MySQL service in the window

Find the "Control Panel" --> ;"Management Tools"-->"Services", stop the MySQL background service

　b. Uninstall the MySQL installation program

　　Control Panel "-->"Programs and Features", uninstall the MySQL program

c. Delete all files in the MySQL installation directory

d. Delete the directory about MySQL in the ProgramData hidden directory on the C drive

ProgramData is a hidden directory under the C drive. Turn on the "Show hidden files" function to find it

　　　Just delete it.

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