Abstract: This paper takes some technologies / problems / scenarios we often encounter in our daily development as the starting point to demonstrate how to use design patterns to complete the relevant implementation.
This article is shared from Huawei cloud community< Practice 23 design modes of GoF: SOLID principle (I) >, author: yuan ...
MySQL installation and setting up WINDOWS service
Set up Windows services for MySQL
MySQL creates and authorizes users
The notes are based on the teaching course "baldness saves the earth" in station B. Course link: 7-day MySQL devil training camp (beginner to expert)_ Beep beep b ...
Posted by brotherhewd on Tue, 01 Mar 2022 02:43:21 +0100
Personal homepage: Hello Code. This column: Java Web from introduction to actual combat It is long and not finished, and the follow-up content will be continuously updated This article will also be published in sections for your convenience If you don't have Java foundation, please go first Java zero foundation guide Column learning correspondi ...
Posted by bookchiq on Mon, 28 Feb 2022 06:41:49 +0100
Python wechat ordering applet course video
Python actual combat quantitative transaction financial management system
[Ji Li 01 group No. 08] SSM framework integration
This course uses MySQL database. Start MySQL first:
sudo service mysq ...
Posted by desmi on Sun, 27 Feb 2022 04:50:24 +0100
Introduction to Docker
Docker is an open source application container engine, which allows developers to package their applications and dependency packages into a portable image, and then publish them to any popular Linux or Windows operating system, or realize virtualization. Containers are completely sandboxed, and there ...
Posted by moneytree on Sat, 26 Feb 2022 14:57:38 +0100
In this paper, the bypass technology of SQL injection for web security is explained in detail, and the principle and application method of SQL injection bypass technology are more deeply mastered through the content in this paper, so as to be better used in penetration testing; The contents of the article are all compiled by personal understand ...
Posted by newbiehacker on Sat, 26 Feb 2022 13:14:26 +0100
01. Add, delete and modify
SQL1 insert record (I)
Now there are two users' response records, as follows:
User 1001 began to answer test paper 9001 at 10:11:12 p.m. on September 1, 2021, and submitted it 50 minutes later, with 90 points;User 1002 began to answer test paper 9002 at 7:1:2 a.m. on September 4, 2021, and quit the p ...
Posted by bjblackmore on Sat, 26 Feb 2022 10:37:33 +0100
User information table: user_profile
Device ID (device_id)
Post quantity field (question_cnt)
Answer quantity field (answer_cnt)
iddevice_idgenderageuniversitygpaactive_days_within_30question_cntanswer_cnt12138male21Peking University3.4721223214maleNULLFudan University4155253654 ...
Posted by FezEvils on Sat, 26 Feb 2022 09:24:04 +0100
When the flowable initializes the table, it always reports an error
mismatch: library version is '126.96.36.199', db version is 188.8.131.52 Hint: Set <property name="databaseSchemaUpdate" to value="true" or value="create-drop" (use create-drop for testing only!) in bean processEngineConfiguration in flowable.cfg.xml for
The database is MySQL flowa ...
Posted by steve490 on Sat, 26 Feb 2022 07:26:41 +0100
The latest MySQL tutorial is easy to understand
javaEE: Enterprise java Web Development Front end (page: display, data!) Background (connection point: connect database JDBC, link the front end (control, control view jump, and transfer data to the front end)) Database (save data, Txt, Excel, word)
1.1 why learn database?
1. Job demand 2. In t ...
Posted by rachelkoh on Fri, 25 Feb 2022 17:44:24 +0100