Retrieve Data from Three Tables without Joins and Subqueries in SQL

Joining Tables to Fetch Available Users: Optimizing Query Performance for Busy Days

Handling Minimum DATETIME Value from JOIN per Account

Using Window Functions to Count Projects and Display Against Each Row in SQL

Filtering Dates in a SQL Query: A Practical Guide

Grouping Rows with the Same Value in Multiple Columns Using Window Functions

How to Convert Dynamic Rows to Dynamic Columns Using SQL Pivoting Techniques

Mastering Window Functions in SQL: A Comprehensive Guide to Calculating Values from Current Row and Previous Row

SELECT destinatario_id, mensagem, remetente_id, ROW_NUMBER() OVER (PARTITION BY destinatario_id ORDER BY created_at) AS row_num FROM mensagens m WHERE to_id = 1 AND created_at IN (SELECT min(created_at) FROM mensagens m2 WHERE m2.destinatario_id = m.destinatario_id)

Joining Three Tables in SQL: A Step-by-Step Guide to Understanding Inner, Left, and Right Joins and How to Correctly Define Join Conditions for Optimal Results.