Understanding Unix Timestamps and Date Formatting in MySQL: A Guide to Efficiently Pulling Rows Between Two Dates

Using Window Functions to Get the Last Fixed Price per Product from a Table in MySQL

Querying Categorical Data in SQL Columns: A More Effective Approach with GROUP BY and DISTINCT

Categorizing Movie Renters Based on Frequency: A Step-by-Step SQL Solution

Optimizing SQL Queries for Boolean Columns in a Single Row

Modelling Multiple Relationships Between Tables Using SQL

Resolving MySQL Datetime Issues: Understanding Ambiguity and Server Location Differences

Understanding the SQL DATEDIFF Function: Limitations and Best Practices for Effective Use

Finding Last Non-NULL Values for Each Column Using MySQL Left Joins and Grouping

Finding Duplicate Values Across Multiple Columns within the Same Row in MySQL: A Step-by-Step Guide to Identifying Duplicates in Your Database