Ranking Data with Multiple Columns and Conditional Criteria in SQL

Counting Distinct Values Where Sum Equals Zero Using Subqueries and HAVING Clauses

Update an Existing Column Using Dynamic SQL: Best Practices and Solutions for Database Administrators

SQL Retrieve Rows Based on Column Condition Using Boolean Logic and Subqueries

How to Create Triggers that Check for Dates from Another Table in SQL Server

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

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

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

Understanding SQL Server Logins and Database Users for Secure Access to Databases

Deleting or Changing Records in ETL: A Deep Dive into SQL Window Functions and Conditional Logic