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Day-of-Week Revenue Pivot

advanced~15 min40 pts
📊 View Insights

Problem

Pivot revenue per billing country across days of the week — useful for spotting weekend-heavy markets.

Schema: Invoice

ColumnType
InvoiceIdINTEGER (PK)
CustomerIdINTEGER (FK)
InvoiceDateTIMESTAMP NOT NULL
BillingCountryTEXT
TotalNUMERIC(10,2) NOT NULL

Requirements:

  • For each BillingCountry, produce 7 columns: Sun, Mon, Tue, Wed, Thu, Fri, Sat — each the rounded sum of Total for invoices on that weekday
  • Also include TotalRevenue (rounded), WeekendShare = (Sun + Sat) / TotalRevenue × 100, rounded to 2
  • Only include countries with total revenue ≥ 25
  • Sort by WeekendShare descending, then TotalRevenue descending
CTEEXTRACTDOWConditional AggregationPIVOTGROUP BYJOINUberSwiggy
📊
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Topfolio

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courses

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practice

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resources

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  • Data Analyst vs Data Engineer vs Data Scientist

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company

  • About
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