The latest articles on DEV Community by leslie angu (@leslie_angu_). https://dev.to/leslie_angu_ https://media2.dev.to/dynamic/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https:%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F3933835%2F2e39f40d-6240-4185-a82e-e8503ee05727.jpg https://dev.to/leslie_angu_ en leslie angu Sat, 30 May 2026 12:20:50 +0000 https://dev.to/leslie_angu_/venturing-into-the-data-space-22nn https://dev.to/leslie_angu_/venturing-into-the-data-space-22nn <h2> Week 1: <strong>Basic fundamentals</strong> </h2> <h3> Day 1: Introduction to Data Analytics, Data Science, Data Engineering and AI. </h3> <p>Data is raw unorganized collection of facts, observations or symbols.<br> Types of data analytics and the data careers in this fields.</p> <ol> <li>Prescriptive Analytics: <em>What should we do about it?</em> This is a branch of data that deals with prediction of future outcomes but also recommends the optimal course of action to take.</li> <li>Descriptive Analytics: <em>What happened?</em> Summarizes raw historical data into easily readable metrics, charts and reports.</li> <li>Predictive Analytics: <em>What is likely to happen?</em> Use historical data alongside statistical models and machine learning algorithms to identify trends and to forecast future probabilities.</li> <li>Diagnostic Analytics: <em>Why did it happen?</em> Involves drilling down into historical data to identify the root causes of specific trends, anomalies, or performance dips.</li> </ol> <p>Tools that were installed and their purpose in data.</p> <ul> <li><p>DBeaver : This is a data base management tool.</p></li> <li><p>Vscode: This is an intergrated development environment (IDE), this is where the coding takes place.</p></li> <li><p>Python: This is the most preffered language for data analysis.</p></li> <li><p>Github &amp; Git: Git is a tool used to keep track of the changes made to a file and Github is the repository that has a copy of the files that are in the IDE.</p></li> </ul> <h3> Day 2: Dealing with DBMS &amp; Git </h3> <p>I managed to connect two databases to DBeaver. The first was aiven- I had set up postgresql and the credentials were generated which was straighforward. The second was postgresql which was running locally on my pc, which required the database name - postgres, password and port: 5432</p> <p>I already had a github account and it was connected to the git on my local machine. I managed to learn a few more git commands that I hadn't used before like git status.</p> postgres git virtualmachine