Java project: enterprise personnel system (java+SpringBoot+Vue+ElementUI+maven+mysql)

Source code acquisition: download from "resources" on the blog home page! Project introduction The functions of the personnel management system include six modules: personnel communication, employee information, personnel evaluation, rewards and punishments, training management, salary management, statistical analysis, and system ...

Posted by clarencek on Sat, 23 Apr 2022 10:15:17 +0300

Java Software Development: Custom MyBatis persistence layer framework

1 framework overview 1.1 what is a framework Framework is the reusable design of the whole or part of the system, which is expressed as a group of abstract components and the method of interaction between component instances; Another definition holds that a framework is an application skeleton that can be customized by application develop ...

Posted by dearsina on Thu, 21 Apr 2022 03:42:25 +0300

springboot integrates Mycat to realize read-write separation

  Environment construction Demo with windows version of mycat Step 1: Download Mycat Download mycat address:https://github.com/MyCATApache/Mycat-download/tree/master/1.4-RELEASE  After downloading for a long time, I can't use it. Share a compressed package I collected before Link: https://pan.baidu.com/s/1B_pYJA1vSqLKlrBunTUBUw   Ext ...

Posted by adaykin on Thu, 21 Apr 2022 01:20:53 +0300

MYSQL basic statement - basic operation of database

catalogue preface 1, Install MYSQL as an RPM package 1. Install required packages 2. Test database connection 3. MYSQL configure security Wizard 2, Basic operation of database 1. View database 2. Create database 3. Directory of database 4. Select the database to operate on 5. Delete database preface MYSQL service overview: MySQ ...

Posted by markjoe on Wed, 20 Apr 2022 19:29:00 +0300

[MySQL core statement query] required for data analysts

This article data analyst must see! Last time I talked about the basics of database and mysql. This time, let's learn some of the most commonly used core query statements in MySQL. The framed part is the focus of this section 1, Single table query SELECT Field name FROM Table name WHERE condition [GROUP BY Field name HAVING condition ORDER ...

Posted by Jaspal on Wed, 20 Apr 2022 16:58:51 +0300

The 10th Session of mysql - shardingsphere JDBC table and database splitting practice of mysql+springboot

As a back-end development, there should be more than a few people who have used mycat. Talk about the problems encountered by the author using mycat! A separate service is required. For the concept that we only have a series of connection addresses, sometimes we don't know when we hang up (because it is deployed by operation and maintenance, an ...

Posted by salmon on Wed, 20 Apr 2022 13:22:14 +0300

Database statements - getting started

database mysql database Create table - data type + Integer type int + Floating point type double + Date type date/timestamp + String type char varchar * variable varchar(n) The maximum length of characters must be given n Use: user name, password, ID number. n= 40 40 Bytes, 20 characters * Immutable is char ...

Posted by loganbest on Wed, 20 Apr 2022 07:21:11 +0300

Java project: course evaluation system (java+SpringBoot+layui+html+maven+mysql)

Source code acquisition: download from "resources" on the blog home page! Project introduction It is suitable for students who have just come into contact with springboot. It is not difficult. The front end uses the layui framework and the background springboot+mybatis. Less code. Roles are divided into students, teachers and ad ...

Posted by consolestrat on Wed, 20 Apr 2022 04:50:40 +0300

Basic concepts of MySQL and PyMySQL operation

1, Database concept and its classification Database: software for storing data, which is stored in the computer for a long time, and an organized collection of data. Data table: the table is the basic unit of data storage in the database. The data is stored in different tables according to classification, which can query the data very efficie ...

Posted by angelcool on Tue, 19 Apr 2022 07:57:28 +0300

MySQL advanced SQL statement of database (nearly 30000 words long)

Preparation before learning: first create two tables for sentence experiment mysql -uroot -p show databases; create database plane; use plane; create table destination ( region char(20), place_name char(20)); insert into destination values('southwest','chengdu'); insert into destination values('north China','beijing'); insert into destin ...

Posted by Bluelove on Tue, 19 Apr 2022 05:50:45 +0300