Using an "Or" Conditional in the `n_distinct` Function of Dplyr: A Flexible Approach to Summarize Counts for Multiple Conditions

Understanding the Issue with Count Function in SQL: Why Grouping Matters for Aggregate Functions

Creating a Network Graph from Value Counts in Pandas DataFrame for Visualizing Relationships and Interactions

Extracting Specific Years from a Table: A Guide to Date Functions and Boolean Logic in SQL

Optimizing SQL Queries with Efficient Counting and Filtering for High-Performance Database Applications

Writing Per-Variable Counts with Data.tables in R: Efficient CSV File Output Using l_ply Function

Modifying Your SQL Query to Get Only Departments with Maximum Average Salary

Calculating Percentages in PostgreSQL: A Deep Dive

Counting Integers and Strings Differently on Pandas: A Comprehensive Guide

Counting Feature Percentages in a Pandas DataFrame with Specific Conditions