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

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

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

Applying NVL Function to Every Column in Redshift Query

Extracting Numerics from Strings in PostgreSQL 8.0.2 Amazon Redshift Using Regular Expressions