Star vs Snowflake Schema: Which to Choose in Power BI

Learn how DAX iterator functions SUMX, AVERAGEX, COUNTX, and RANKX work in Power BI, the difference from SUM, and when to use them.

Learn how DAX Time Intelligence functions calculate YTD, MTD, comparisons to last year, and moving periods in Power BI.

Learn how the DAX CALCULATE function works in Power BI – syntax, examples, changing filter context, and common mistakes.

Learn how to automate an Excel report using Power Query, with a real example using CSV files, the Folder method, and automatic dashboard refresh.

Learn the difference between Row context and Filter context in DAX, how they work together, and how CALCULATE changes filter context in Power BI.

Learn how to automate merging Excel tables with XLOOKUP – reduce manual work and the risk of errors in repetitive processes.