Unpivoting a Row with Multiple Status Change Date Columns in SQL: A Step-by-Step Guide to Denormalization and Unpivoting

Handling Joins on Multiple Tables with Null Values in Hive Using Built-in Functions and User-Defined UDFs

Solving the Challenge: Using Hive SQL for Unique Device Counts and Exclusive Usage Determination

Running Subqueries in Hive: A Deep Dive

How to Use Hive Aggregation Functions to Return Matching Values from Two Columns