Unlocking SQL Server's Power: Mastering Aggregate Functions and Grouping Dates

Selecting Top Records Using SQL: A Step-by-Step Guide

Verifying Duplicate Values in a Table with SQL: A Step-by-Step Guide

Conditional GROUP BY with Dynamic Report IDs Using T-SQL in Stored Procedures

Finding Stores Without Recent Products in SQL Server: An Efficient Approach Using NOT EXISTS

Understanding How to Optimize Slow SELECT Statements Using fn_decompress in SQL Server

Modifying a WITH CTE AS Statement: Handling Blank Customers and Order by Clauses with CTE Update Strategies

Maximizing SQL Date Operations: Best Practices for Success in the Era of Time Zones and Data Types

Understanding SQL Server's Correct Usage: A Step-by-Step Guide to Avoiding Duplicate Records When Joining Tables

Joining Tables When Certain Conditions Must Be Met: A SQL Server Example