Installation and Understanding of MySQL

MySQL MySQL Download Be sure to download the installation package from the official website and use the installation package to download it. Official website MySQl Community Server(GPL) Keep Version Information in mind Version will not change Version consistent with enterprise uninstall Compute ...

Posted on Tue, 23 Jul 2019 18:37:34 -0700 by Shifty Geezer

Django Develops Personal Blog Project-Blog Database Design

Welcome to my blog: Tribal Cabinet of Alpaca Django operates the database through the Model. Whether your database type is MySql or Sqlite, Django automatically generates the corresponding database type of SQL statements for you, so you don't need to pay attention to the SQL statements and types, and Dj ...

Posted on Tue, 23 Jul 2019 18:15:56 -0700 by allspiritseve

7. Multi-table operation of Django's orm

Multi-table operation Three relationships: one-to-one, one-to-many, many-to-many 1. Data preparation and table model creation Configure settings to connect to the database # settings Change Configuration DATABASES = { 'default': { 'ENGINE': 'django.db.backends.mysql', 'NAME': 'orm03', 'HOST':'127.0.0.1', 'PORT':3306, 'USER':'root', 'PASSWORD' ...

Posted on Tue, 23 Jul 2019 06:48:15 -0700 by wata

Detailed explanation of ansible-playbook for ansible automatic operation and maintenance tools

http://www.yamllint.com/This blog article links up the first part: Installation of Ansible Automation Operation and Maintenance and Explanation of Common Modules Introduction to Playbook The playbook configuration file uses YAML grammar, which is concise and clear in structure. The playbook configuration file, similar to shell scripts, is a Y ...

Posted on Tue, 23 Jul 2019 03:32:22 -0700 by sathyan

Java Secondary Kill System Actual Series~Commodity Secondary Kill Code Actual

Summary: This blog is the sixth in the "Java Secondary Kill System Actual Series Articles". In this blog we will enter the code development of the core function module of the whole Secondary Kill System, that is, the code actual operation of the "Commodity Secondary Kill" function module. Content: The Commodity Secondary Ki ...

Posted on Mon, 22 Jul 2019 14:13:31 -0700 by fazzfarrell

Nodejs Road-MongoDB&MySQL

MongoDB 1.1 Overview MongoDB is a database based on distributed file storage. Written in C++ language. The aim is to provide a scalable and high performance data storage solution for WEB applications. MongoDB is a product between relational database and non-relational database, which has the most abundant functions and resembles relational ...

Posted on Mon, 22 Jul 2019 05:51:24 -0700 by bznutz

Centos installs Confluence with docker

1. Download the official image docker pull atlassian/confluence-server:6.15.7-alpine 2. Create and run containers docker run -m 1024M --memory-swap -1 -host --net=host --name wiki -d -p 8090:8090 -p 8000:8000 atlassian/confluence-server:6.15.7-alpine 3. Enter Initialization Interface Access address: http://Server IP:8090/setup/setupstart. ...

Posted on Mon, 22 Jul 2019 03:35:36 -0700 by HavokDelta6

Excel Catalyst Open Source Wave 50 - Interconnection between Excel and PowerBIDeskTop Part 4

The last part of PowerBI function sharing is about how to export metadata of data model. The author defines it as data dictionary of model. The corresponding function of this article comes from: Wave 6 - Derived Powerbi Desktop Model Data Dictionary https://www.jianshu.com/p/bc26a8dcdfce Relational databases have data dictionaries, analytical d ...

Posted on Sun, 21 Jul 2019 21:55:33 -0700 by mrphobos

Oracle Learning Notes 4: pl/sql

1. What is pl/sql? sql: Structured Query Language pl/sql: (Procedure Language & Structured Query Language) is an extension of SQL language and stored procedure language. It can implement simple logic programming like Java language. 2. Advantages of pl/sql? From bloggers https://www.cnblogs.com/huyong/archive/2011/05/16/2047329.html See ...

Posted on Sun, 21 Jul 2019 20:41:56 -0700 by EGNJohn

Singleton pattern - the simplest design pattern?

First, in the front In the system development and design, there are always several situations, such as: (1) creating destroyed objects frequently; (2) creating objects consumes a lot of resources, but often uses objects (such as tool class objects, frequently accessing database or file objects, data sources, session factories, etc.); and (3) on ...

Posted on Sun, 21 Jul 2019 06:53:39 -0700 by msielski