DAX Full Course in Tamil | Section 04: DAX Table Manipulation Functions- Power BI Developers

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This is where DAX gets really powerful.

📥 Practice dataset (Free download):
https://variablz.com/courses/data-analysis-expressions-dax/

In Part 4 of our DAX Full Course, we dive into Table Manipulation
Functions — the functions that let you create, shape, combine, and
summarize tables entirely within DAX. Whether you're building complex
data models or writing advanced measures, these functions are what
separate beginners from confident DAX developers.

We cover 18 functions in total — from the basics like DISTINCT and
ADDCOLUMNS, all the way to SUMMARIZECOLUMNS, joins, set operations,
and TOPN.

WHAT'S COVERED
✅ DISTINCT – Remove duplicates from a column or table
✅ ADDCOLUMNS – Extend a table with calculated columns
✅ GENERATESERIES – Create a sequence of numbers or dates
✅ DATATABLE – Build a static table directly in DAX
✅ CROSSJOIN – Combine every row of two tables
✅ GENERATE & GENERATEALL – Expand tables with related rows
✅ NATURALINNERJOIN – Join tables on matching columns
✅ NATURALOUTERJOIN – Join tables and keep unmatched rows
✅ SUMMARIZE – Group and aggregate table data
✅ ROLLUP & ROLLUPGROUP – Add subtotals to summarized data
✅ SUMMARIZECOLUMNS – The modern way to summarize in DAX
✅ ROLLUPISADDSUBTOTAL – Control subtotal rows in your output
✅ ADDMISSINGITEMS – Fill in missing combinations in a table
✅ ROLLUPIS SUBTOTAL – Detect subtotal rows in your results
✅ Set Operations – UNION, INTERSECT, and EXCEPT explained
✅ TOPN – Return the top N rows from any table

▶ DAX Full Course - Single Video
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https://youtube.com/playlist?list=PLrNN2-_4Vgizh7x0-_E3MjhNR5GOp5tvF&si=RsVFLxjcKWIfctK0

Follow the series in order — each part builds on the previous one.

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