Comparing Dates with IF-THEN-ELSE Inside a PostgreSQL Procedure: Best Practices and Examples

Working with Mixed Date Formats in R: A Deep Dive into Handling 5-Digit Numbers and Characters

5 Closest Cities to Each City: A Step-by-Step R Code Solution

Understanding Business Days in Oracle Queries: A New Approach Using TRUNC and ISO Week Numbers

Counting Rows for Every Day Between Two Date Columns in SQL Server

Understanding Time Zones and UTC: A Guide to Converting UTC Times to Local Times in PostgreSQL

Calculating Date Differences in SQL Server: A Comprehensive Guide

Overcoming Excel's Date Format Conversions in R: A Step-by-Step Guide

Counting Occurrences of Specific Parts in DateTime2 Values Using Window Functions and Partitioning

Retrieving Orders Between Specific Dates and Grouping by Month Using SQL Queries and PHP