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Data Analysis Tutorials

Get insights on the latest tools & methods that you can use to analyze your data more effectively. Our data analysis tutorials will help you develop your skills.

How to Use SQL PIVOT

Enhance your SQL skills with the SQL PIVOT operator. Learn to convert rows into columns to create pivot tables in SQL Server and Oracle.

Allan Ouko

26 июля 2024 г.

SQL SUM() Function Explained

Discover the power of the SQL SUM() function for data aggregation. Learn how to implement rolling sums, cumulative sums, and sum multiple columns effectively.

Allan Ouko

15 августа 2024 г.

How to Round Up a Number in Python

Discover three straightforward techniques to round up numbers in Python: using math.ceil() from the math module, using the decimal module, and NumPy.

Allan Ouko

22 июля 2024 г.

UNION vs UNION ALL in SQL

Discover the output and performance differences between UNION and UNION ALL: UNION removes duplicates while UNION ALL includes them.

Vikash Singh

15 января 2026 г.

How to Combine VLOOKUP() with IF() in Excel

Combine VLOOKUP() with IF() for efficient data analysis, including conditional lookups, error handling, and dynamic column indexing.

Laiba Siddiqui

18 июля 2024 г.

Rank Formula in Excel: A Comprehensive Guide With Examples

Learn how to rank data in Excel with RANK(), RANK.EQ(), and RANK.AVG() functions. Understand their differences, applications, and tips for accurate data analysis.

Laiba Siddiqui

16 июля 2024 г.

How to Upgrade Python and Pip in Windows, MacOS, and Linux

Read our step-by-step instructions for how to upgrade Pip and Python on Windows, macOS, and Linux. Keep your environment up-to-date and compatible.

Samuel Shaibu

23 декабря 2025 г.

How to Use the Python pass Statement

Learn to use the Python pass statement in loops, functions, and classes. Understand the pass statement's importance in code execution and readability.

Allan Ouko

11 июля 2024 г.

Conditional Formatting in Excel: A Beginner’s Guide

Explore conditional formatting in Excel with simple to advanced examples and their best practices.

Joleen Bothma

8 июля 2024 г.

How to Use the SQL REPLACE() Function

Learn the application of the SQL REPLACE() function in text manipulation. Understand the use of the REPLACE() function in data cleaning and database management.

Allan Ouko

8 июля 2024 г.

How to Use the SQL EXISTS() Operator

Learn how to use the SQL EXISTS() operator for subquery evaluation and filtering, complete with examples, best practices, and tips for optimizing your queries.

Allan Ouko

8 июля 2024 г.

How to Create Data Models in Excel: A Comprehensive Guide

We create data models by formatting data, creating relationships, using Power Query, and leveraging Power Pivot for seamless data integration and analysis.

Vikash Singh

5 июля 2024 г.