Relational Databases and Normalization

Two-dimensional data is the most commonly used form of information representation by humans. In 1970, Edgar F. Codd first introduced how to efficiently use two-dimensional data to represent transactions, laying the foundation for modern databases. The core of this theory is: normalization. Let’s demonstrate how database normalization helps us build a better two-dimensional data model through an example. 1 Scenario We have a system that tracks students registering for courses at a technical institute. Each student has a unique ID, and each course has a unique course number, course name, and instructor. We need to design a normalized database structure. ...

September 9, 2024

Customize Your Resume According to the Job Description

In the current Resume Manager application, the module I use the most on a daily basis is the job application module, with its core feature being the tracking of resume submissions. Moving forward, I want to enhance the ability to match resumes with job requirements. This will involve the following steps: Analysis of the recruitment process and the needs of each stage Resume Match evaluation Process adjustment 1 Analysis of the recruitment process and the needs of each stage Stage Goal Evaluation Criteria Resume Screening Initial screening to find candidates that meet basic job requirements Core skills Years of experience Education requirements Career objectives and cultural fit Initial/Phone Interview Further assess communication skills, motivation, and cultural fit Communication skills Career motivation Problem-solving ability Cultural fit Technical Assessment Evaluate candidates’ technical proficiency and problem-solving skills Technical skills Problem-solving ability Project experience and technical expertise Behavioral/Deep Interview Assess leadership, teamwork, and deeper cultural fit Leadership Teamwork Cultural fit Handling challenges Final Interview/Decision Ensure long-term potential within the company and alignment of compensation expectations Overall competence Role expectations and company growth alignment Salary negotiation and benefits expectations 2 Resume Match evaluation the three most important aspects of a resume are : ...

September 5, 2024

Create an Industrial Automation Solutions Website

I want to consolidate my experience and knowledge in the field of automation, and I’ve decided to do this by creating a website. I also hope it can serve as a starting point for offering consulting services. Since this website is content-focused, I chose to build it using Docusaurus and deployed it on Cloudflare. I spent an hour setting up the template and configuring automated deployment. You can now access it by clicking here. ...

September 4, 2024

A Method for Quickly Mastering the USNR Scanning System

I have never used the USNR Scanning system before. This article outlines my plan for quickly mastering the system and developing the capability for ongoing maintenance and improvement. 1 Goals & Metrics The goal can be divided into two stages : Proficiency : Become familiar with the USNR system as an assistant, understand the manual, learn the operating procedures, and handle common issues. Control : Understand the wood processing steps, and master the role of the USNR system at each step Tasks for Proficiency : ...

September 2, 2024

How to Prepare for Data Jobs

Preparing for data jobs means writing a good resume and passing the job interview. I want to take immediate action, so I’ve set the following principles: Time allocation principle: Focus on securing interview opportunities before receiving any interviews; once an interview is secured, focus on interview preparation. Take action first, then reflect and improve as you go. Therefore, we start with the resume, which includes two important factors: ...

August 28, 2024

Creating a Continuous Improvement System

When we want to accomplish something or achieve a goal, sometimes we succeed, and sometimes we face challenges. Can we find a method that makes it easier to succeed? My answer is PDCA(plan–do–check–adjust). Just do it, let it fail if necessary, and then find a new way to fix it. What is a system The goal of all science, is to substitute visible complexity for invisible simplicity. John Baptiste Perrin a system contains 5 part : ...

August 20, 2024

Application Integration : it's all about the adapter

Integration development is not a standardized term, so there isn’t a dedicated page for it on Wikipedia. In this article, it defines application integration as the process of enabling individual applications to communicate with each other. For me, integration means adapter. Let me explain it. Basic skills Fundamental skills : Protocols : HTTP, XML, messaging protocols, web services, and web sockets are some of the most common protocols used in application integration. Formats : EDI, HL7, SWIFT, and other standards are often used in enterprise businesses to facilitate communication between systems. View from a higher perspective : ...

August 13, 2024

Six Actionable Steps for Finding a Job

Let me introduce six actionable steps for finding a job. 1. get your head right You have to believe that you’re going to get a job. Your job is to control what you can control and to shrink the time between now and when you land a job. 2. just do it if you’re serious about getting a new job, don’t wait to get started. The alternative is wasting years of your life at lower pay with less status. ...

August 12, 2024

How to Set Up Google Analytics a Step by Step Guide to Getting Your Measurement Id

We use Google Analytics to track the number of visitors to our website, including information about when they visit and how they interact with our site. This helps us understand our audience better and improve our online presence. when you have a website and want your software engineer to support it with Google Analytics, You need to do two things: Create a New Property Get the Measurement ID and Send It to Your Software Engineer here is a step-by-step guide ...

August 7, 2024

How to Move Your GoDaddy Domain to Cloudflare a Step by Step Guide

Managing your domain through Cloudflare offers numerous benefits, including enhanced security, improved website performance, and easy DNS management. These are not the most important factors. The main reason is that you might need my help with day-to-day management, and personally, I prefer Cloudflare. If you have a domain registered with GoDaddy and want to move it to Cloudflare, follow this detailed step-by-step guide. Step 1: Create a Cloudflare Account and Add Your Site Create a Cloudflare Account Visit the Cloudflare website. Click on “Sign Up” to register if you don’t already have an account. Once registered, log in to your Cloudflare account. Add Your Domain to Cloudflare After logging in, click on “Add a Site” on the Cloudflare dashboard. Enter your GoDaddy domain (e.g., “yourdomain.com”). Click “Continue”. Step 2: Choose a Cloudflare Plan Cloudflare offers various plans, including a free plan and several paid plans. Choose the one that best fits your needs. Click “Continue”. Step 3: Review and Confirm DNS Records DNS Record Scanning Cloudflare will automatically scan your current DNS records and list them for you. Review these records to ensure they are accurate. You can modify or add records as needed at this stage. Confirm DNS Records Once you have confirmed that all DNS records are correct, click “Continue”. Step 4: Update Your Domain’s Nameservers Get Cloudflare Nameservers Cloudflare will provide you with two nameservers, such as addyson.ns.cloudflare.com and norman.ns.cloudflare.com. copy nameservers. Log in to Your GoDaddy Account Visit the GoDaddy website. Log in to your GoDaddy account. Click ‘My Products’ Access Domain Management On the GoDaddy dashboard, find and click on “Domains”. Locate the domain you want to manage and click on “Domain Name”. Change Nameservers In the DNS Management page, find the “Nameservers” section and click “Change”. Select the “Custom” option. Enter the nameservers provided by Cloudflare. Save your changes. Confirm Step 5: Wait for DNS Propagation The changes to the nameservers may take 24-48 hours to propagate across the internet. I only waited for 10 minutes. ...

August 6, 2024