Programming VIP

> What is Oauth2? Oauth is an Open Network Identity. The current version is 2.0, so it is called Oauth2. > Why use Oauth2? For example, if you want to log on to XX website, but XX website needs to register, it is very troublesome, and if all websites need to log on, it is very difficult to remember, then if we only register a website, oth ...

Android Foundation Day 3 1 Database Creation under Android When do we use databases for data storage? When large amounts of data with the same structure need to be stored. MySQL SQL Server 2000 SQLite embedded lightweight SqliteOpenHelper Create a database step: 1. To create a class integration SqliteOpenHelper, you need to add a constru ...

introduce MHA (Master High Availability) is currently a relatively mature solution to MySQL high availability. It is a set of excellent high availability software as fault handover and master-slave promotion in MySQL high availability environment. In the process of MySQL fault switching, MHA can automatically complete the database fault swi ...

How to install MySQL under Linux 1. Download MySQL: Official Website https://www.mysql.com/ Click Downlosas, turn to the bottom of the page, download the community version, go all the way, select Universal Linux, download the 64-bit one, pay attention to checking MD5 Value. 2. Install the key steps and post the command directly [roo ...

Catalog: 1. What is a stored procedure Two. Six Stored Procedures 1. Stored procedures with input parameters 2. Stored procedures with output parameters 3. Stored procedures with input and output parameters 4. Stored Procedures with Conditional Judgement 5. Stored Procedures with Looping Procedures 6. Use the results of the query a ...

brief introduction Sometimes the installation and deployment of the server, each time in some process, forgot to always find out the previous notes, now the whole process will be sorted out. This is Centos 7.2, which will help you to spend less time looking for notes in the future. Blog Address My github address Welcome your attention Servi ...

Xtrabackup description and installationXtrabackup description and installationFull backup and recovery of XtrabackupFull and incremental backup and recovery of XtrabackupIV. Partial Completeness, Increment and Recovery of XtrabackupXtrabackup description and installation1. Introduction and description of XtrabackupPercona XtraBackup is the only ...

In a master-slave environment, if the master library hangs, how to elect a slave library as the master library?As shown in the figure:If M hangs, how do I elect a slave library from S1 and S2 as the master library?Solutions to Traditional Reproduction(1) View the status of slave libraries:S1: show slave status；S2: show slave status；root@local ...

We start with this section with a very important tool, Docker Compose, which is used frequently. Let's start with a case study of why we use Docker Compose. Case study: How do I deploy a WordPress via a container? Now pull WordPress locally: docker pull wordpress docker image ls REPOSITORY TAG IMAGE ID ...

Introduction to Log AnalyrThe Log Analyzer tool provides an easy-to-use, powerful front-end for searching, viewing and analyzing network activity data, including system logs, event logs and many other log sources. Since it only presents data to our users, the data itself needs to be collected by another program, such as syslogd, rsyslog (now th ...