Optimizing SQL Queries for Friday the 13ths: A Performance-Centric Approach

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

Mastering SQL GROUP BY: How to Filter Sessions by Multiple Interactions

Installing PostgreSQL 9.5.15 on CentOS 6: A Step-by-Step Guide

Inserting Data into Postgres Based on Column Date

Understanding PostgreSQL Table Existence and Non-Existence: A Troubleshooting Guide

Converting REGEXP Substitution Output into Meaningful Dates Using SQL Functions

Querying All Tables in a Database for Records That Satisfy Some Condition: A Comparative Analysis of Dynamic SQL Generation and UNION Queries

SELECT DISTINCT ON (user_id, activity_type_id, EXTRACT(year FROM start_date_local))

How to Insert Data into a Table Where No Existing Records Match Certain Conditions in Postgres and Oracle