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MySQL scheduled backup database

1, The mysqldump command backs up data MySQL ...
11:47 20 November 2021

Four ways of cross domain communication with other pages through iframe, developed by 27 year old preschool

window.name = "hello world" window.location = "http://www.baidu.com" ...
11:44 20 November 2021

What's new in. NET6 -- struct optimization

Some optimizations have been made for Struct in. NET6. Let's take a look at the optimizations for Struct in. NET6 throug...
10:03 20 November 2021

Chapter 4 Introduction to data type conversion, operators and methods

1, Data type conversion The data of participa...
8:39 20 November 2021

pdf preview in base64 format

pdf preview in base64 format In the project, ...
7:37 20 November 2021

Summary of corner detection and edge detection methods of OpenCV

  1, A rough understanding of expansion and corrosion       Because expansion and corrosion belong t...
6:30 20 November 2021

Persistence layer learning notes

1,JDBC 1-1 introduction  &em...
6:13 20 November 2021

Spring boot integrates Minio file storage

background The company's development framework...
5:59 20 November 2021

Java collection (knowledge points are in the example)

catalogue Set concept Concept: Application scenario: &nb...
5:03 20 November 2021

Ubuntu 20.04 installing MySQL and configuring MySQL workbench

preface Recently, when learning Lin Ziyu's big data, I found that installing Hive for Hadoop requires using MySQL databa...
3:50 20 November 2021

Data structure graph theory

DFS connected ...
0:57 20 November 2021

Take you to the event object from zero understanding JavaScript to the essence of JavaScript (in)

1, Event event type The event object also has some compatibility problems. In IE8 and previous versions, when registeri...
23:43 19 November 2021

Take a look at Rust and take note 4

Today, I'm free to take a look at chapter 4 - functions, closures and iterators Chapter 4: functions, closures and itera...
22:30 19 November 2021

Teach you how to use Python to crack WIFI passwords

First, generate a codebook The password book is our common password, which is generally composed of numbers, letters and...
22:04 19 November 2021

Java Process Control

1. User Interaction Scanner \quad Previously, the basic grammar we learned did not allow us to interact with programs a...
21:54 19 November 2021

Introduction to java.util.concurrent package

1. Introduction The java.util.concurrent package provides tools for creating concurrent applications. 2. Main components...
21:40 19 November 2021

Microservice scenario building (simulation)

1. Create parent project In microservices, you need to create multiple projects at the same time. First, you need to cre...
18:42 19 November 2021

MySQL master-slave replication

1, Introduction to master-slave replication ...
18:28 19 November 2021

hiveSQL execution plan (explain the most detailed in the whole network!!)

0 - Preface Hive SQL's execution plan describes the overall outline of the actual execution of SQL. Through the executio...
18:11 19 November 2021

⚡ Daily algorithm & interview questions ⚡ Study together 5 ️⃣

Algorithm problem Given an integer array nums arranged in ascending order and a target value target. Find the start and ...
17:52 19 November 2021

Spring cloudalibaba Learning Series dubbo custom Filter

catalogue 1, Introduction 2, Actual combat 1. Create filt...
17:37 19 November 2021

Mybatis @Flush annotation analysis

Mybatis @Flush annotation analysis When looki...
15:52 19 November 2021

Learn some structures, functions and concepts commonly used in XDP/eBPF

preface As a record and reference for learning XDP and eBPF, it also includes the understanding of some concepts, which ...
14:47 19 November 2021

NOIP 2012 cultural tour

I saw that the data of this problem mentioned in Luogu was especially water, so I wrote a very water approach. ...
13:47 19 November 2021

Let's simply encrypt the string

First of all, the so-called encryption here means that the value from the back end to the front end is different from th...
11:14 19 November 2021

Essential skills for Android architects thread sharing and collaboration for concurrent programming

Status of the thread Six thread states provided in the official Oracle documentation Status nameexplainNEWIn the initial...
7:35 19 November 2021

Font reading and display of dot matrix Chinese characters and file transmission through serial port

1, Serial port transmission file 1. Serial port connection Cross connect the RXD and TXD pins of the two USB TO TTL seri...
6:00 19 November 2021

Introduction to python crawler

1, Foreword What is a reptile &nb...
2:04 19 November 2021