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Continuous Learning & Continuous Updating... Learning Attitude: Keep away Basic Commands If you are prompted for Denial of Service when you enter a command, open the command prompt interface as a system administrator and try again Start MySQL Service Command net start MySQL service name Stop MySQL Service Command net stop ...

Disclaimer: This article only records the solutions to the problems encountered and the summary of learning experience. It is inevitable that there will be some thoughtless places. Please criticize and correct. Please do not use the content of this article for all your activities and behaviors. I will not bear any consequences arising therefrom ...

1, Introduction to HAProxy HAProxy is a proxy software that provides high availability, load balancing and applications based on TCP (layer 4) and HTTP (layer 7). It supports virtual hosts. It is a free, fast and reliable solution. HAProxy is especially suitable for web sites with heavy load, which usually need session persistence or seven lay ...

Index and transaction 🎈🎆🎇 preface: This post only introduces the principles and concepts, not the specific underlying implementation 1, Index 1.1 what is an index How to find the target quickly when the number in the database is huge? The index is used. If a book wants to quickly find the knowledge points it wants, it will firs ...

catalogue MySQL master-slave replication         Master slave replication architecture and principle                   Function of replication                 Replication schema     ...

1, select basic syntax The select statement is used to select data from the database. The results are stored in a result table called a result set. Quotation marks and semicolons in the select query statement are English symbols, and the end flag of the query statement is semicolon. Take dept table as an example to demonstrate: Descr ...

Record the deadlock problems and solutions encountered in the development process The first is the isolation level. mysql has four isolation levels, from loose to strict Read uncommitted         Read Uncommitted Read commit             Read Committed     (isolation level used in onlin ...

catalogue 1, MySQL master-slave replication 1. Principle of master-slave replication 1. Replication types supported by MySQL 2. Working principle of MySQL master-slave replication 3.MySOL master-slave replication delay 4. Role of replication 2. Specific operation 1. Main server 192.168.68.200 2. From server 192.168.68.30 3. From serve ...

Database introduction: Carrier for data storage in the operating system: Windows. Linux and macos are file based operating systems Database system: refers to a system that can provide information services for users. It achieves organized. The function of dynamically storing a large amount of relevant data provides a convenient means for data ...

Personal Taobao store link Partners in need can click here 1 Preparation (1) Download the official website of tomcat, unzip it to / Library, start the Tomcat server, and the official website of Tomcat appears; (2) When downloading MySql, the Mac should not download the latest version, because MySql cannot be opened in the system preferences. ...