Using Arrays for Conditional Aggregation in BigQuery: A Pivot Table Solution

Retrieving the Most Recent Record for Each ID: A SQL Solution

Using Window Functions in MySQL: Fetching Last N Rows for Multiple Users

Understanding the Limitations of ROW_NUMBER() and Finding Alternative Solutions for Partitioned Data

Optimizing Queries on Nested JSON Arrays in PostgreSQL: Advanced Techniques for Filtering and Selecting Specific Rows

Retrieving the Last Production Quantity from a MySQL Query: Two Solutions with Correlated Subqueries and row_number()

Get the Top 3 Score Rows for Each Category in a Pandas DataFrame Using Multiple Approaches