🔍 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 …

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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 …

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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 …

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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 …

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