Return Top Records with a Null Field or Grouped by That Field in SQL Server

Optimizing Date Range Merging with Gaps-and-Islands Problem Solution

Using Conditional Aggregation in SQL Server: Advanced Data Analysis Techniques

Understanding Execute Permission for SP_SEND_MAIL Not Working?

Understanding PATINDEX in SQL Server: A Guide to Searching Six Continuous Numeric Values

Calculating an Average Value in SQL: A More Efficient Approach Using Analytic Functions

Unioning with Stored Procedures: A Deep Dive into SQL Server's Dynamic Data Combination Technique

Replacing Unique File Share Values in a SQL Server Column Using Concat Function

Unifying Database Queries for Constant Values Across SQL Server and Oracle

Simplifying Complex Column Queries Using Common Table Expressions