Six hands-on tracks. A real database, real spreadsheets, a real Power Query editor, real Python, a real DAX engine and a Tableau calculation engine — all running in your browser, with every answer checked the moment you press Check.
SQL46 ch · 378 questsQuery a real Postgres database, from SELECT to window functions.
Excel & Sheets33 ch · 97 questsFormulas that do the work — lookups, dynamic arrays, LAMBDA.
Power Query20 ch · 100 questsClean and reshape messy data once, refresh it forever.
Python32 ch · 255 questsStart from zero and write real programs — no install needed.
DAX20 ch · 74 questsWrite DAX measures on a real data model — the formula language of Power BI.
Tableau20 ch · 100 questsCalculated fields, level of detail and table calculations: the thinking behind a Tableau view.
171 chapters · 1004 hands-on quests · beginner to advanced · lessons in English with Hinglish notes
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AnalystRepsHands-on data skills: SQL, Excel, Power Query, Python, DAX and Tableau
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171 chapters · 1004 quests across SQL, Excel, Power Query, Python, DAX and Tableau