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

Calculating Row Counts using Odd Numbers in Python

Simplifying Exist Queries in Oracle: A Comparative Analysis of Techniques

How to Aggregate Events by Year in SQL Server with Conditional SUM Statements

Finding Tie Values in SQL Server: A Comprehensive Guide to Identifying Tied Scores Using Aggregation and Window Functions

Extracting Unique Words from a DataFrame's Review Column with Pandas

Best Practices for Handling Non-Grouped Columns in SQL Queries

Counting Occurrences with Exclude Criteria Using Window Functions and Aggregation in SQL

Understanding Oracle SQL Count and Group by Multiple Fields

Understanding How to Count Data with SQL and Handle Truncation Issues in Real-World Applications