Tags / unpivot
How to Create a Pivot Table in Oracle SQL Without Using Aggregate Functions
Convert Rows to Columns in PL/SQL
5 Effective Ways to Sum Dates in PostgreSQL Using Lateral Join
Understanding SQL Select Statements: Returning a Static List of Values
Constructing a New Table by Aggregating Values in One Table: A Comprehensive Guide to Calculating Purchase Rates
Counting Events Across Multiple Columns Without Full Joins or Concatenation
Unpivoting Holiday Hours in SQL Server Using Dynamic SQL and Table-Valued Functions