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Article directory Preface 1, libmysql source download 2, Unzip and configure 3, Build install 4, Program testing Preface It is too cumbersome (or lazy) to transplant mysql in the development board, so we need to migrate the required libraries to the development board for C language programs. Fin ...

1, Description of demonstration project: A single physical machine uses xtrabackup to back up 63G mysql data online to create a new slave database.The purpose of the demonstration is to record the test database data of 63G used on a single physical server, and then quickly create a slave database on the local machine, about how long it will ta ...

Catalog Django 3 features Precondition Django 3 tutorial, step 1: create MySQL database Django 3 tutorial, step 2 - initializing a new virtual environment Django 3 tutorial, step 3 - install Django and MySQL client Django 3 tutorial, step 4 - initializing a new project Django 3 tutorial, step ...

django creates the first project, using pycharm, and the virtual machine uses ubantu Create command (if Django is installed) Have a project and a virtual environment awareness. You can install Django in the virtual environment if you don't install it Virtual environment construction pip install vi ...

Article directory Preface I. environment 1.1: Environment 1.2: purpose of the experiment 2: Experimental process 2.1: deployment of Redis from master-slave server 2.2: master-slave server configuration file modification 2.3: install rvm and RUBY control cluster software on the main server 2.4: th ...

1. spring security is for permission authentication. 2. Database based authentication is used in all projects. First, we create a permission related table. General authority controls include    user → role → data_privilege    user →data_privilege  Users control through role. Data permission is ...

Create a model for an existing database in the Entity Framework Core Here, you will learn how to create context and entity classes for existing databases in the Entity Framework Core. Creating entity and context classes for an existing database is called the database first method. EF Core does not sup ...

The database can be operated easily by Java using JDBC API. In java8 and later, JDBC ODBC bridge connections have been dropped. For different databases, download the driver to the corresponding official website. Here are three common database driver names, driver class and corresponding connection strin ...

From the pool technology to the bottom layer implementation, an article takes you through the thread pool technology. 1. Introduction to pool technology In the process of system development, we often use pooling technology to reduce system consumption and improve system performance. In the field of prog ...

Anemia model We generally use three-tier architecture for business development: Repository + Entity Service + BO(Business Object) Controller + VO(View Object) In the three-tier architecture business development, we often use the development mode based on the anemia model. Anemia model refers to th ...