Samouczki z analizy danych

Poznaj najnowsze narzędzia i metody, które pomogą Panu/Pani skuteczniej analizować dane. Nasze samouczki z analizy danych pomogą rozwijać umiejętności.

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How to Create a Dashboard in Excel: A Step-by-Step Guide

Build interactive Excel dashboards with this tutorial covering pivot tables, charts, slicers, and design best practices.

29 maja 2026

Creating Stories in Tableau

Find out everything you need to know about creating stories in Tableau with this step-by-step tutorial.

10 listopada 2022

How to Use the COALESCE() Function in SQL (With Examples)

Learn how to use the SQL COALESCE() function to handle null values, combine columns, and clean up your data with real-world examples and tips.

27 marca 2025

FORMAT() SQL FUNCTION

FORMAT() is one of the most commonly used functions in SQL. Learn its main applications in this tutorial.

19 maja 2026

INSERT INTO SQL FUNCTION

INSERT INTO lets you add data to your tables. Learn how to use it in this tutorial.

12 października 2022

COUNT() SQL FUNCTION

COUNT() lets you count the number of rows that match certain conditions. Learn how to use it in this tutorial.

12 grudnia 2024

DATEDIFF() SQL FUNCTION

DATEDIFF() is one of the most widely used date data manipulation functions in SQL. Master it by reading this tutorial.

6 grudnia 2024

Advanced Analytical Features in Power BI Tutorial

Discover how to make your Power BI reports more insightful, informative, and interactive with this advanced analytical features tutorial.

23 maja 2022

Data Visualization with Bokeh Tutorial: Plotting Data Structures

Learn basic visualizations of various data structures using Bokeh.

30 marca 2022

Data Cleaning: Understanding the Essentials

Data cleaning is a very basic building block of data science. Learn the importance of data cleaning and how to use Python and carry out the process.

18 grudnia 2024

Python Select Columns Tutorial

Use Python Pandas and select columns from DataFrames. Follow our tutorial with code examples and learn different ways to select your data today!

25 listopada 2024

Recommendation System for Streaming Platforms Tutorial

In this Python tutorial, explore movie data of popular streaming platforms and build a recommendation system.

30 sierpnia 2020