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DD-TRF-001 Basic Data Cleaning and Shaping Get the data →
DD-TRF-001-Q022 Medium Time series

Exact duplicates by month

Count the surplus exact-duplicate rows by month of TransactionDate. Report the month with the most and its count; break ties by earliest month.
Expected
One row per month: YearMonth, count; peak flagged · Line chart
Tables
FactTransactions · columns
  • FactTransactions
  • TransactionID
  • TransactionDate
Topics
Data Quality

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