#SQL
Learn how to:
1. Use dynamic SQL with UNPIVOT to transform columns into rows
2. Use GROUPING SETS to add sub-totals at different levels of aggregation at the same time
3. Use dynamic SQL with PIVOT to transform the result into a cross-tabulated table with column totals, row totals and a grand total
#sql #data #analytics #sqlserver #coding #dataanalytics #datascience