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

Using Case Statements with Date Functions to Simplify Complex Date Queries in SQL

Converting Vertical Tables to Horizontal Tables in SQL Using XML PATH

Advanced SQL Querying for Extracting Specific Values from a Column

Converting Unicode to German Umlauts with SQL Queries

Using SQL Queries with Column Values for WHERE Clauses

Understanding the T-SQL MERGE Statement with Condition: What is Not Matched?

Selecting Distinct Code Clients with Minimized Duplicate Names: A Comprehensive Guide to Managing Complex Datasets

Understanding String Matching in SQL: A Deep Dive into Regular Expressions

Selecting One Column from a Group By Query in SQL Server: Efficient Methods using CTEs and Window Functions