Converting Dates to Human-Readable Format in SQL Databases: A Comparative Guide

Rebuilding Queries with Joins: A Creative Solution for Data Uniqueness.

How to Use Window Functions for Complex Queries: Partitioning Rows Based on a Column and Applying a Row Number or Rank in PostgreSQL

SQL for 2 Tables: A Step-by-Step Guide to Joining and Retrieving Data

Optimizing Spatial Queries in PostgreSQL: A Guide to Speeding Up Distance-Based Filters

Finding Second Customer Visit Based on Custom Conditions in PostgreSQL Using Lateral Join and Row Numbering

Understanding SQL Self Joins: Retrieving Names for Different Status with Same ID

How to Group Duplicate Values Using json_agg() and Transform Output into Nested Array in PostgreSQL

Optimizing Index Usage and Query Plans in PostgreSQL for Better Performance

How to Select the Latest Timestamp for Each Unique Session ID with Non-Empty Mode