Tags / pivot
Oracle SQL Query: Using PIVOT to Concatenate Columns Based on Group Values
Optimizing Date and Time Conversion Across Different Database Systems: A Comparative Analysis
Conditional Aggregation for Multiple Columns from One Column in MS Access: A Practical Guide
Finding Last Shared Date Among Representatives: Unpivoting and Scaling Up Approaches
Transposing a Table in SQL Server 2016: A Step-by-Step Guide to Using PIVOT
Converting Quarterly Reports in PostgreSQL: A Better Approach with Conditional Aggregation