A Director’s Perspective After 10+ Years in the Trenches By Ankit, Technical Director, Slidescope The Reality Check Let’s start with a hard truth. In my 10+ years of building software — from solo coding nights to leading teams at Slidescope building real-time collaborative systems — one skill consistently separates the prepared from the panicked: Version …
Why Every Technical Student Must Master Git & Version Control Read More »
At Slidescope we have taught 10000+ students and those who want to build their career as a data analyst always have this question in mind, “How to start my career as a Data Analyst?”. Many blogs and website will tell you about this technology that technology etc. But you should start with understanding what is …
🔍 What it does: FIRSTDATE() returns the first (earliest) date in the current filter context from a column of dates. 🧮 Syntax: ✅ Example: This returns the earliest date where data exists based on the current filters (e.g., per region, product, month, etc.). 🧠 Used with CALCULATE: Example: Get sales on the first date of …
FIRSTDATE() in Power BI DAX – Description & Example Read More »
Here’s a short description and example of PARALLELPERIOD() in Power BI DAX: 🔁 What it does: PARALLELPERIOD() shifts the dates in the current context by a specified number of intervals (month, quarter, or year) — but keeps the same length of period. 🧮 Syntax: 🧮 Example: Previous Year Sales 📊 How it works: Year Month …
Using this dataset, you can practice these advanced or frequently used features: 1. 🔍 Filter Rows Based on Conditions Use Case: View only employees who worked in “New York” 🔧 Steps: ✅ Result: Only rows where Location is “New York” are kept. Real-Life Benefit: Helpful when creating location-specific dashboards. 2. 🪞Time Column Cleaning ✅ Objective: …
🛠️ 5 More Useful Features in Power Query Editor with Explanation Read More »
Here’s a curated list of the 50 most important DAX functions — grouped by category — that every Power BI Developer should know for interviews, certifications, and real-world use. 📅 Date & Time Functions ⏳ Time Intelligence Functions 🔢 Math & Aggregation Functions 🧠 Logical & Conditional Functions 📊 Filter Functions 🔗 Relationship & Table …
✅ Sample Dataset: Employee Work Hours (Synthetic) EmployeeID Name Department Date CheckInTime CheckOutTime Location E001 Alice HR 2024-06-01 09:15 17:45 New York E002 Bob Finance 2024-06-01 09:30 18:00 Chicago E003 Charlie IT 2024-06-01 10:00 19:00 San Francisco E004 Diana HR 2024-06-01 09:00 17:00 New York E005 Edward IT 2024-06-01 11:00 20:00 Chicago Here’s a mini …
Power Query Editor 3 different features of it on Employee Data Read More »
In DAX (Data Analysis Expressions), the PRODUCTX function multiplies all the values of a given expression evaluated over a table. Syntax of PRODUCTX: PRODUCTX(table, expression) table: The table to iterate over. expression: The expression to evaluate and multiply across each row. 🎯 Use Case: Calculating Compound Growth (Multiplicative Change) Let’s say we have a table …
🌍 What Are Sustainable Development Goals (SDGs)? Sustainable Development Goals (SDGs) are a set of 17 global objectives adopted by the United Nations in 2015 to end poverty, protect the planet, and ensure prosperity for all by 2030. Each goal addresses a key area such as health, education, inequality, economic growth, climate action, and peace. …
Are you Struggling with slow reports on huge datasets?Power BI Aggregations can supercharge your performance 📊 Step 1: Create an Aggregated TableSummarize your big fact table by key dimensions — like Date, Product, or Region. 🧠 Step 2: Enable Manage AggregationsRight-click your aggregated table ➝ “Manage Aggregations”Map each column to the large fact table — …
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