Understanding Timestamps in PostgreSQL and Redshift: A Guide to Correct Formatting and Conversion

Calculating Customer Re-Order Percentage in SQL Using Lag Function and Case Logic.

Calculating the Percentage of Calls Answered Within a Specified Time Frame Using Conditional Aggregation

Understanding SQL's Dense_Rank and Group By: A Deep Dive - How to Use DENSE_RANK() with GROUP BY for Powerful Data Insights

Getting the Latest Two Dates for Each Unique ID in a Table Using SQL Conditional Aggregation