Installing MySQL under CentOS 7

Installing MySQL under CentOS 7 Step 1: Download MySQL [root@tencent-centos1 opt]# wget http://mirrors.sohu.com/mysql/MySQL-5.7/mysql-5.7.17-linux-glibc2.5-x86_64.tar.gz Step 2: Unzip and download to MySQL package 1. Decompression package. Command template The directory where the tar-zxvf compression package i ...

Added by meir4u on Sat, 18 May 2019 22:40:15 +0300

Source Details Seata-Client principles and processes for distributed transactions

Preface Distributed transaction is a problem that must be solved in distributed systems. At present, the final consistency scheme is used mostly.Since Ali opened Fescar at the beginning of this year (renamed Seata in early April), the project has received tremendous attention and is now approaching 8000 Star s. Seata Distributed transaction cha ...

Added by unkwntech on Sat, 18 May 2019 13:06:43 +0300

7. View operation of MySQL database

In the last section, the view concept of MySQL database was introduced at the end. This chapter will give a detailed introduction to the centralized use of views. Before creating the view, we first create the student table, college table and student information table. By using the operation of the view to three tables, we can have a basic under ...

Added by Nacota on Sat, 18 May 2019 12:07:04 +0300

Python+selenium crawls job information recruited by Zhilian

The whole crawler is based on selenium and Python, running the packages needed  1 mysql,matplotlib,selenium  Need to install selenium Firefox browser driver, Baidu search. The whole crawler is modular. Functions and classes with different functions are placed in different files. Finally, constants that need to be configured are placed in consta ...

Added by ludwig on Sat, 18 May 2019 09:49:29 +0300

Installation of mysql decompressed version

1. Download MySQL Community Server from the official website 2. Adding environment variables path=%MYSQL_HOME%/bin 3. Copy my-default.ini file under the root directory and rename it my.ini. The configuration is as follows: # For advice on how to change settings please see # http://dev.mysql.com/doc/refman/5.6/ ...

Added by jucedupp on Fri, 17 May 2019 21:11:31 +0300

Laravel Core Interpretation--ENV Loading and Reading

Laravel loads the. env file in the project at startup. It is often useful for applications to run in different environments with different configurations. For example, you might want to use the tested Mysql database locally and switch the project to the production Mysql database automatically when it comes online. This article will introduce th ...

Added by kdidymus on Fri, 17 May 2019 12:59:48 +0300

Install Mysql under centos7

Download Mysql I use 64-bit MySQL 5.7.20 to execute the following commands wget https://dev.mysql.com/get/Downloads/MySQL-5.7/mysql-5.7.20-linux-glibc2.12-x86_64.tar.gz Encounter problems 1,wget commond not found If you sign up for wget commond not found ation, you have not installed wget configuration for centos. This command needs to b ...

Added by gladius on Fri, 17 May 2019 11:18:19 +0300

Common MySQL 5.7 commands

Reference to the following collation Mysql Common Command Line Complete 1. Connect mysql Format: mysql-h host address-u username-p user password 1. MYSQL connected to the local computer. (Assuming that both user name and password are root) Firstly, open the DOS window, switch to the directory mysql bin, then type the comm ...

Added by kitegirl on Fri, 17 May 2019 00:03:44 +0300

CryptDB Code Analysis 4-Encrypted Metadata Reading and Writing

Previously, we introduced the classes related to metadata management in CryptDB and the storage format of these classes in MySQL. This article describes when these metadata were created, when and how they were written to the database, when they were read, and where they were used. Initialization and Metadata Readin ...

Added by reidme on Thu, 16 May 2019 22:45:15 +0300

Mycat configures Mysql read-write separation + forced walk-write node + read-write separation based on master-slave delay

Database read-write separation is an indispensable and important function for large-scale systems or high-volume Internet applications. For MySQL, the standard read-write separation is the master-slave mode. A write node Master is followed by multiple read nodes. The number of read nodes depends on the pressure of the system, usually the confi ...

Added by lucilue2003 on Thu, 16 May 2019 22:21:46 +0300