SQL CASE analysis: CASE conditional expression

Hello, everyone. I'm Mr. Tony, who only talks about technology and doesn't cut his hair. Today, we introduce an application CASE of CASE conditional expression, using the example table Click here to download. If the company is about to celebrate its 20th anniversary, it plans to distribute an anniversary gift to all employees. The rules for ...

Posted by MsShelle on Thu, 02 Dec 2021 17:56:13 -0800

Kubernetes: Pod upgrade and rollback

This chapter mainly discusses how to realize rolling update and rollback, arbitrarily change the version and rollback the previous version (version update), while the next chapter will discuss Pod scaling and automatically expand and shrink applications according to machine resources (automatic capacity expansion instances). This article is par ...

Posted by findshorty on Thu, 02 Dec 2021 17:56:10 -0800

C Primer Plus sixth edition programming exercise Chapter 7 answers

1. Write a program to read the input, stop reading the # characters, and then report the number of spaces, line breaks and all other characters. /*7.12*/ #include<stdio.h> #define STOP '#' #define BLACK ' ' #define NEWLINE '\n' int main() { char ch; int n_black = 0; int n_NEWLINE = 0; int n_others = 0; printf("please enter the char: ...

Posted by allexx_d on Thu, 02 Dec 2021 17:49:53 -0800

react source code analysis 12. Status update process

react source code analysis 12. Status update process Video Explanation (efficient learning): Enter learning Previous articles: 1. Introduction and interview questions 2. Design concept of react 3.react source code architecture 4. Source directory structure and debugging 5. JSX & Core api 6.legacy and concurrent mode entry functions ...

Posted by bw on Thu, 02 Dec 2021 17:01:06 -0800

Interfaces and abstract classes in Java

1, Introduction Abstract class: a class modified by abstract can be called an abstract class. Abstract classes can have abstract methods, that is, methods decorated with abstract. Such methods have no specific implementation structure, but only a definition. Interface: a class like structure formed by replacing class with interface. The methods ...

Posted by seansd on Thu, 02 Dec 2021 16:19:26 -0800

Matlab uses BUGS Markov regime to transform Markov switching random volatility model, sequential Monte Carlo and M-H sampling to analyze time series data

Original link: http://tecdat.cn/?p=24498In this example, we consider Markov transformation stochastic volatility model.statistical modelGive Way    Are dependent variables and    Unobserved log volatility  The stochastic volatility model is defined as follows  Zone variable    Following a two-state Markov ...

Posted by msandersen on Thu, 02 Dec 2021 16:04:31 -0800

JDK dynamic agent and CGLIB dynamic agent are really different

Absrtact: This article takes you to understand JDK dynamic agent and CGLIB dynamic agent This article is shared from Huawei cloud community< This article takes you to understand JDK dynamic agent and CGLIB dynamic agent >, author: skin shrimp. What's the difference between the two 1, Jdk dynamic proxy: use the interceptor (to implement In ...

Posted by webworks on Thu, 02 Dec 2021 15:44:51 -0800

Build a RESTful API using SpringBoot

background Is such a simple thing worth writing an article? When we started a project last year, because more and more people participated in it, we soon exposed a problem: everyone has his own set of (code) style. Considering the cooperative operation of the team, it is proposed to formulate relevant specifications to make everyone's pace con ...

Posted by mindrage00 on Thu, 02 Dec 2021 15:36:42 -0800

1, Array_ Prefix and array_ 304. Two dimensional area and retrieval - the matrix is immutable

Title Description Given a two-dimensional matrix, multiple requests of the following types: Calculate the sum of the elements within its sub rectangle. The upper left corner of the sub matrix is (row1, col1) and the lower right corner is (row2, col2). Implement the NumMatrix class: NumMatrix(int[][] matrix) initializes the given integer matri ...

Posted by alco19357 on Thu, 02 Dec 2021 15:28:36 -0800

Grafana 8.0 alarm usage

In addition to supporting rich data sources and chart functions, grafana also supports alarm function, which also makes grafana a real monitoring tool from a data visualization tool. Grafana can alarm the abnormal information in the monitoring data through the configuration of the Alerting module. The alarm rules can be configured directly base ...

Posted by GYK on Thu, 02 Dec 2021 15:21:01 -0800