3-Use databases in Django

Database Settings In the previous section, you learned how to create a Django project, create a web application in a Django project, and reference the URL of a web application in the URL of a Django main program.Here's how to use databases in Django.To use a database in Django, you first need to understand the settings for the database connecti ...

Posted by Sinikka on Sun, 16 Feb 2020 21:48:32 +0100

MySQL query operation

Introduction to MySQL database Learning notes (2) Simple query SELECT column_name1, column_name2 FROM table_name; #select name,phone from person; SELECT * FROM table_name; #select * from person; * indicates all contents in the query table Conditional query where clause is required for condition q ...

Posted by the-hardy-kid on Sun, 16 Feb 2020 05:48:27 +0100

Introduction to rpm package management

API: application program interface ABI: application binary interface The ABI file of linux system is in ELF format The ABI file of windows system is in the form of exe and msi System level development language: c/c++ Works: httpd, vsftpd, nginx Application level development: java/python/php java works: hadoop, hbase python works: openstack It's ...

Posted by dekeb55 on Sat, 15 Feb 2020 11:28:04 +0100

RedisCluster quick start notes

[TOC] RedisCluster quick start notes PS: this tutorial is based on Redis5.0+ Note for Redis cluster cluster: It can expand linearly to 1000 nodes Nodes use P2P instead of Proxy to interact, sacrificing data consistency Client tolerates a certain degree of data loss Data is stored and distributed on multiple Redis instances according to Slot Cl ...

Posted by stickman373 on Sat, 15 Feb 2020 10:07:09 +0100

Git Dehydration Edition [10. Internal Mechanism]

a.1 underlying command Previously, we outlined 30 common Git commands, such as checkout/branch/remote. Since Git's initial goal was a collection of tools, not a VCS system, it contained a large number of underlying commands to be invoked in scripts like Unix systems, so these commands are called under ...

Posted by Drakkie on Sat, 15 Feb 2020 07:39:34 +0100

Deployment and use of docker (12) harbor

Harbor is an enterprise level Registry server for storing and distributing Docker images. The image storage harbor uses the official docker registry(v2 named distribution) service to complete. On the basis of docker distribution, harbor adds some functions of security, access control and management to m ...

Posted by Peter on Fri, 14 Feb 2020 10:53:23 +0100

PHP environment building windows

To prepare the Apache and php packages: Link: https://pan.baidu.com/s/1xclkowi-a3r8oeyften3a Extraction code: whjj Install Apache 1. Modify the httpd.conf configuration in the Apache24\conf \ directory, and open the httpd.conf file in Notepad 2. Find the item "Define SRVROOT" and change the ...

Posted by getmukesh on Fri, 14 Feb 2020 08:54:55 +0100

Use Sonar for Code Quality Management and Mail Alarm

1. Overview of Sonar Sonar is an open platform for code quality management.Through the plug-in mechanism, Sonar can integrate different testing tools, code analysis tools, and continuous integration tools. Unlike continuous integration tools such as Hudson/Jenkins, Sonar does not simply display the results of different code inspection tools (s ...

Posted by NixNod on Thu, 13 Feb 2020 23:00:45 +0100

Spring MVC self study log 07 (Mybatic integration)

Integration steps Import related jar package <!--junit--> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.12</version> </dependency> <!--mybatis--> <dependency> <groupId>org.mybatis& ...

Posted by jamal dakak on Thu, 13 Feb 2020 16:50:30 +0100

Flash + MySQL + eckarts: realize data visualization

Flask Flask is a lightweight WSGI Web application framework. It is designed to make it easy to get started and has the ability to scale to complex applications. It was originally a simple wrapper around Werkzeug and Jinja and has become one of the most popular Python Web application frameworks. from fl ...

Posted by trinitywave on Thu, 13 Feb 2020 14:37:21 +0100