Creating Date Ranges from Multiple Rows Based on a Single Date

Grouping Rows Based on a Consecutive Flag in SQL (Redshift) for Time-Series Data Analysis

Understanding Delimited Strings and Pattern Matching in PostgreSQL

Applying NVL Function to Every Column in Redshift Query

Understanding Row Total and Grand Total in Redshift or SQL: A Guide to Window Functions

Counting Duplicates in SQL for One Column: Choosing the Right Approach

Calculating User Retention with SQL and Amazon Redshift: A 7-Day Analysis Strategy