This article mainly introduces the diagram of the yum method from uninstallation to installation of MySQL5.7.18 under Linux. Friends who need it can refer to it. After struggling for a long time, thinking about it, I finally figured out the yum installation process. Yes, I have written about binary package installation before. I use yum to install it here. The environment is the same, Centos7.2+MySQL5.7.18. I refer to many articles for each step, and I will list them one by one later, because this machine has already been installed. After that, simply follow the steps step by step to uninstall and then reinstall. This article is implemented through a series of relatively copycat methods. For users like me who have not been exposed to Linux for a long time, it is relatively easy to understand and accept. For example, directly download the file under Windows and drag it to the Linux system instead of downloading it with the wget command. Directly edit through the editing function of winscp editor instead of vim command. Uninstall the operating system version rpm -qa | grep -i mysql rpm -
Introduction: This article mainly introduces the yum method of MySQL5.7.18 under Linux from uninstallation to installation process. Friends in need can refer to it
2. Detailed introduction on how to use rpm package to install mysql 5.7.18 in CentOS7
## Introduction: This article mainly introduces the relevant steps of installing mysql 5.7.18 using rpm package in CentOS7. It has certain reference value. Interested friends can refer to it
3. MYSQL tutorial About the installation and connection tutorial of mysql5.7.18
Introduction: This This article mainly introduces the first MySQL basic tutorial in detail, mysql5.7.18 installation and connection tutorial, which has certain reference value. Interested friends can refer to it
4. Detailed steps for installing mysql5.7.18 under Mac
5.
mysql5. Detailed steps for installing 7.18 on Mac
##Introduction: This article mainly introduces it in detail] The detailed steps for installing mysql5.7.18 under Mac have certain reference value. Interested friends can refer to
6.
Use YUM to install mysql 5.7 under Linux .18 example tutorial## Introduction: This article mainly introduces the use of YUM in Linux (CentOS 7 ), the detailed tutorial for installing mysql 5.7.18 is very good and has reference value. Friends who need it can refer to
7. Mysql 5.7.18 decompressed version download and installation And detailed graphic explanation of starting the mysql service
##Introduction: This article mainly introduces Mysql 5.7.18 The detailed graphic and text explanation of downloading, installing and starting the mysql service is very good and has reference value. Friends who need it can refer to
8. MySQL5.7.18 binary under Linux Package installation tutorial
Introduction: This article mainly introduces the MySQL5.7.18 binary package installation tutorial under Linux (no default configuration file my_default.cnf), required Friends can refer to
9. Mysql 5.7.18 decompressed version installation and startup instance method
Introduction: This article mainly introduces the detailed graphic and text explanation of downloading and installing the decompressed version of Mysql 5.7.18 and starting the mysql service. It is very good and has reference value. Friends in need can refer to it. Next
10. mysql5.7.18 installation tutorial steps under mac os10.12
Introduction: This article mainly introduces the installation tutorial of mysql5.7.18 under mac os10.12 in detail. It has certain reference value. Interested friends can refer to it
【Related Q&A recommendations】:
Mysql 5.7.18 cannot find the configuration file my.cnf## under mac OSX10.12.4 (16E195) #
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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

The main role of MySQL in web applications is to store and manage data. 1.MySQL efficiently processes user information, product catalogs, transaction records and other data. 2. Through SQL query, developers can extract information from the database to generate dynamic content. 3.MySQL works based on the client-server model to ensure acceptable query speed.

The steps to build a MySQL database include: 1. Create a database and table, 2. Insert data, and 3. Conduct queries. First, use the CREATEDATABASE and CREATETABLE statements to create the database and table, then use the INSERTINTO statement to insert the data, and finally use the SELECT statement to query the data.

MySQL is suitable for beginners because it is easy to use and powerful. 1.MySQL is a relational database, and uses SQL for CRUD operations. 2. It is simple to install and requires the root user password to be configured. 3. Use INSERT, UPDATE, DELETE, and SELECT to perform data operations. 4. ORDERBY, WHERE and JOIN can be used for complex queries. 5. Debugging requires checking the syntax and use EXPLAIN to analyze the query. 6. Optimization suggestions include using indexes, choosing the right data type and good programming habits.


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