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DD-TRF-003 Complex Joins, Exceptions and Transformation Logic Get the data →
DD-TRF-003-Q021 Medium Time series

Stray-case codes by month

Count rows whose ProductCode changes under trim and upper-case, by month. 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
FactTransformationEvents · columns
  • FactTransformationEvents
  • ProductCode
  • TransactionDate
Topics
Data Cleaning

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