DAX

Here is the the difference between AVERAGE vs AVERAGEX with a realistic example using your Hospital Patient Treatment Dataset (which includes patients, doctors, recovery scores, treatment cost, etc.). ❓ Question: What is the average of the average recovery score per doctor? 🔍 Why This Matters: Here is the dataset snapshot ✅ DAX Using AVERAGEX (Correct …

AVERAGE vs AVERAGEX DAX Function Difference with Example Read More »

Here are Top “This vs That” DAX Function Comparisons with explanation Topic Function 1 Function 2 Key Difference 1. Standard Deviation STDEV.S STDEV.P Sample vs Population (n-1 vs n) 2. SUM vs SUMX SUM() SUMX() Simple aggregation vs row-by-row evaluation 3. AVERAGE vs AVERAGEX AVERAGE() AVERAGEX() Aggregation vs iteration over rows 4. CALCULATE vs CALCULATETABLE …

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🔍 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 …

PARALLELPERIOD() in Power BI DAX 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 …

Most important 50 DAX functions 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 …

ProductX DAX Function in Power BI Read More »

1. Slidescope Sample Financial Dataset (100 Rows) We’ll use a dataset representing sales transactions. This dataset includes information about Date, Product Category, Product Name, Sales Amount, Quantity, Customer Segment, and Region. Table Name: Sales Date Product Category Product Name Sales Amount Quantity Customer Segment Region Order ID 2024-01-05 Electronics Laptop X 1200 1 Consumer North …

Financial dataset, along with 5 advanced DAX questions & solutions Read More »