Challenge No. 126: Combine Series 1 and Series 2 together and sort them and list those where elements of the combined series are in sequence with no gap.
Solved using: SQL.
COUNT
Counts the number of numeric values in a range in Excel.
Identify All-Season Products!
Challenge No. 14: Create a list of products sold in all the months throughout the year.
Solved using:Excel (COUNT, FILTER, LAMBDA), Power Query (Date.Month, List.Distinct, List.Transform), and R.