Use Multiple Conditions to Get Precise Results (Day 7)
Introduction In Day 6, you learned how to filter data using the WHERE clause. You were able to answer simple questions like:Show Sales employeesFind employees with salary above 40,000 But…
Filter Data to Answer Real Questions Using WHERE (Day 6)
Introduction In Day 5, you learned how to read data using SELECT. But real-world analysis is not about seeing everything.It is about finding specific information. Today, you will learn how…
Read Data Clearly Using SELECT Queries (Day 5)
Introduction In Day 3, you created your first table in Oracle SQL and inserted employee data into it. That was your foundation. Now, instead of just storing data, you will…
Filtering Data to Answer Real Questions Using WHERE
Introduction In Day 3, you created your first table and inserted employee data into it. Now you have a working dataset. But in real jobs, analysts never look at the…
Understanding How Data Is Organized Inside a Database
Introduction Until now, you have installed the tools and successfully connected VS Code to your Oracle database. That was an important technical step. This is Day 3 of your structured…
Setting Up Your SQL Workspace: Installing Tools and Connecting to Your First Database
Introduction Yesterday, you understood what databases are and how SQL is used in real companies to retrieve data. Before we start writing queries, we need to set up a proper…
Starting Your Data Journey with SQL: Understanding How Companies Store and Use Data
Introduction If you want to work in data analytics, reporting, or any data-driven role, everything begins with understanding where data comes from. Before analysts build dashboards or create reports, they…
Final Power BI Interview Revision and Career Roadmap
Introduction Congratulations. You have completed the complete Power BI roadmap. Over the past 48 days, you learned: Data CleaningPower QueryData ModelingRelationshipsDAX FundamentalsCALCULATE and ALLTime IntelligenceDashboard DesignPublishingData RefreshAPI IntegrationInterview PreparationPortfolio BuildingBusiness…
Complete End-to-End Business Dashboard Project in Power BI
Introduction Over the past 46 days, you have learned: Data CleaningPower QueryData ModelingRelationshipsDAX MeasuresCALCULATE and ALLTime IntelligenceDashboard DesignPublishingRefresh ManagementAPI ConnectionsInterview Concepts Now it is time to bring everything together into…
Using APIs and Web Data in Power BI (Beginner Practical Guide)
Introduction So far, you have mainly worked with: Excel filesCombined_Sales tableCalendar table But in real business environments, data also comes from: WebsitesOnline servicesPublic APIsCloud systems This is where APIs and…