A 21-page PDF in the SQL section of the PrepNPlaced notes library.
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After the notes
Read them in order if you like — the free library first, then the deep-dive modules, then the live cohort when you want someone reviewing your work.
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SQL, Python, Power BI, PySpark and Excel — full video lessons with MCQs and a proctored skill test at the end. The notes are the summary; this is the teaching.
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See what's insideAI-Powered Data Engineering Cohort 4 · starts 3 October 2026
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