For each category, remove duplicate pairs (A with A- and B with B-) and retain the row with the maximum ID. How can this be implemented using T-SQL?
The solution I used when facing a similar challenge involved determining the duplicate rows through a Common Table Expression (CTE) with the ROW_NUMBER() function. I partitioned records based on the group logic that identifies pairs and ordered by the ID in descending order. By filtering rows where the ROW_NUMBER() equals one, I was able to retain only the record with the maximum ID for each duplicate pair. This approach provides clarity, simplicity, and efficient handling of the duplicate pairs.