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MySQL to achieve sequence effect   Generally, sequence is used to process primary key fields. There is no sequence in mysql, but MySQL provides an increment to achieve similar purposes, but it is only an increment, and cannot set step size, start index, cycle, etc. the most important thing is that a table can only be used by one field, but some ...

When exporting, backing up and restoring Mysql database from the master database to the slave database, you need to pay attention to whether to enable GTID mode for the database. If you enable it, you should add the parameter -- set GTID purged = off to mysqldump data. See reprint for details: Here are the first 30 lines of a.sql exported with ...

MySQL 8 official version 8.0.11 has been released. It is officially said that MySQL 8 is two times faster than MySQL 5.7, and has brought a lot of improvements and faster performance! The following is the record of my installation process on April 23, 2018. The whole process takes about an hour, and the make & & make install process tak ...

Functions in MySQL Functions in MySQL include character function, numeric operator and function, comparison operator and function, date time function, information function, aggregate function, encryption function, etc. 1. Character function //For example, when you need to output last name and first name togethe ...

As the last article in this introductory series, we will demonstrate how to build a LNMP environment to build a personal blog site in the CentOS7 environment. The common ways to build a website are LAMP, LNMP, IIS, Nginx, Tomcat, etc. This paper demonstrates the more popular way to build a dynamic WEB site based on LNMP. As mentioned in "L ...

mysql general binary format installation premise mysql binary format compression package install 1) decompression tar -xf mysql-5.5.58-linux-glibc2.12-x86_64.tar.gz copy the extracted installation package to the system installation location / usr / local / mysql-5.5.58-linux-glibc2.12-x86_ cp -r mysql-5.5.58-lin ...

Note: The source analysis corresponds to JDK version 1.8 1 Introduction This is the first article on JDK Source Interpretation in Source Notes. In this article, we will explore the source code related to Java's SPI mechanism. 2 What is SPI mechanism So, what is the SPI mechanism? SPI is short for Service Provider Interface, which means Service ...

Domain Modeling Read the Asg_RH documentation and build a domain model by use case. Database Modeling (ER Model) ER Model Diagram Export MySQL database script Simple Description of Differences and Differences between Database Logical Model and Domain Model Domain Modeling Read the Asg_RH documentation and ...

To use pdo, you need to open the pdo extension first. I have opened the pdo extension of mysql here ghostwu@dev:~$ php -m | grep pdo pdo_mysql ghostwu@dev:~$ 1. Connect to the database mysql> show create database shop \G; *************************** 1. row *************************** Database: shop Create Database: CREA ...

gravity is a heterogeneous/isomorphic data replication channel software for Mobay bicycle ticketing, providing support for mainstream software and native k8s cloud.Better see its development. Project address: https://github.com/moiot/gravity Official documents: https://github.com/moiot/gravity/blob/master/docs/2.0/01-quick-start.md The comp ...