SQL CTE Solution: Identifying Soft Deletes with Consecutive Row Changes

Unpivoting Columns with SQL: A Step-by-Step Guide to Transforming Complex Data Formats

Unpivoting and Repivoting in MySQL: A Case Study on Union Queries

How to Convert Value Types Within a SUM Function in SQL

Handling Multiple Allowances in SQL Queries: A Better Approach with OUTER APPLY

Mastering SQL Count then Sum Operations: A Step-by-Step Guide to Analyzing Data with Aggregate Functions

Understanding SQL Server Analysis Services (SSAS) and its Data Access Options: A Guide to DAX, MDX, and Power Query

How to Dynamically Select Specific Columns from Stored Procedures Using OpenQuery

Modifying Recursive CTEs to Achieve Hierarchical Ordering with Multiple Levels of Depth

Optimizing Data Retrieval with DISTINCT in Multi-Table Queries for Improved Performance and Readability