Understanding Date Casting in SQL Server: The Converting Conundrum

How to Convert INT Values to Quarter Names Accurately in SQL Server Calculated Columns

Converting NULL to Datetime in SQL Server: Understanding the Difference Between Char(0) and NULL

Designing Parent/Child Relationships for a Social Network Database: A Comparative Analysis of Three Design Options

Implementing Date Constraints with Triggers and Checks in PostgreSQL

Returning Comma-Separated Email Addresses in SQL Server Using STUFF and XML PATH

Understanding Spatial Indexes in SQL Server: A Guide to Performance Optimization

Optimizing SQL Code for Efficient Data Manipulation and String Splitting Using XML

Using Filtering and Conditional Aggregation to Solve Complex Data Analysis Problems in PostgreSQL

Oracle SQL Query to Extract Last Entry Date per Category