Merging Overlapping Date Ranges in SQL Server 2014

Creating Groupings Based on Unique Combinations of MEM_ID, PROV, and ADM_DT in SQL

Combining Duplicate Records Based on Column Combinations: A SQL Approach

Summing Over Rows Based on Column Value Using PostgreSQL Window Functions

SQL Window Functions for Aggregate Calculations with the COALESCE and MAX Approach

Splitting a Column Value into Two Separate Columns in MySQL Using Window Functions

SQL Join Against Date Ranges: Exploring Consecutive Dates with LAG, DATEDIFF, and Grouping