US EditionPower Query: Unlock Hidden Insights from Past Data
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Power Query: Unlock Hidden Insights from Past Data
Power Query self-joins for data challenges Power BI course available themes: data manipulation, past data analysis Power Query Self-Join: This technique uses Power Query to create a "previous date" column for each customer or entity. It retrieves the prior event (like rental or move-out date) efficiently, making it useful for time series analysis and tracking changes over time. Performance Benefits: Calculating previous dates in Power Query ins…
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