COMIDOC
CouponsFreeTopics
COMIDOC
CouponsVerified CouponsFreeFree CoursesTopicsTopics
React
AdvertiseSubmit Course

About

Udemy coupons monitored continuously.

Verified offers, course alerts, precise filters, and browser detection built for learners who want coupons that still work.

TelegramTwitterFacebookRSS

Browser tools

Find coupons directly on Udemy.

The extension surfaces an available Comidoc coupon while you browse a Udemy course page.

ChromeFirefoxEdge

Useful links

Discover

  • Blog
  • Daily Freebies
  • Most Wanted Coupons
  • Top Contributors
  • Udemy Sale Calendar

Services

  • Pricing
  • Advertise Here
  • Developer API
  • Submit Coupon

Comidoc

  • About
  • Contact
  • Data License
  • Privacy
  • Terms

© 2017–2026 Comidoc

v6.6.36

Independent coupon discovery for Udemy learners

Course topic

  1. Topics
  2. Development
  3. Data Preparation & Cleansing

Data Preparation & Cleansing

Also indexed asData Cleansing · Data Transformation · ETL Basics

Acquire essential skills in cleaning, transforming, and preparing raw data for accurate and reliable analysis.

Courses indexed
89
Live offers
9
Free & coupon courses onlyChange view
Power BI Desktop - Solving Data Prep Challenges
Instructor Dan We
Dan We
1 course
English
Power BI Desktop - Solving Data Prep Challenges

Power BI Desktop - Solving Data Prep Challenges

(4.65 with 24 reviews)
294
students
2.0 hours
content
Oct 2023
updated
$14.99
Alteryx TRIFACTA e METABASE: tratamento de dados e gráficos
Instructor MSc Grimaldo Lopes | + 65.000 alunos de Oliveira
MSc Grimaldo Lopes | + 65.000 alunos de Oliveira
1 course
Portuguese
Alteryx TRIFACTA e METABASE: tratamento de dados e gráficos

Alteryx TRIFACTA e METABASE: tratamento de dados e gráficos

1
students
5.2 hours
content
Jul 2025
updated
$14.99
Einführung in die Datenanalyse Plattform KNIME
Instructor Dan We
Dan We
1 course
German
Einführung in die Datenanalyse Plattform KNIME

Einführung in die Datenanalyse Plattform KNIME

(4.67 with 42 reviews)
171
students
3.3 hours
content
Jan 2026
updated
$14.99
Effiziente Datenanlyse in KNIME für Fortgeschrittene
Instructor Dan We
Dan We
1 course
German
Effiziente Datenanlyse in KNIME für Fortgeschrittene

Effiziente Datenanlyse in KNIME für Fortgeschrittene

(4.63 with 19 reviews)
71
students
3.1 hours
content
May 2026
updated
$14.99
Alteryx MasterClass - Lets get started
Instructor Dan We
Dan We
1 course
English
Alteryx MasterClass - Lets get started

Alteryx MasterClass - Lets get started

(4.72 with 88 reviews)
410
students
4.5 hours
content
Mar 2024
updated
$14.99
Alteryx Masterclass - crash course in alteryx for beginners
Instructor Dan We
Dan We
1 course
English
Alteryx Masterclass - crash course in alteryx for beginners

Alteryx Masterclass - crash course in alteryx for beginners

(4.63 with 1.7K reviews)
5.2K
students
2.5 hours
content
Mar 2024
updated
$14.99
【한글자막】 태블로 Tableau 완벽 실전 교육! 커리어 업그레이드 하기
Instructor Kirill Eremenko
Kirill Eremenko
1 course
Korean
【한글자막】 태블로 Tableau 완벽 실전 교육! 커리어 업그레이드 하기

【한글자막】 태블로 Tableau 완벽 실전 교육! 커리어 업그레이드 하기

(4.71 with 190 reviews)
1.2K
students
8.9 hours
content
Sep 2024
updated
$14.99
APACHE Superset e Alteryx TRIFACTA - Dados e Visualizações
Instructor MSc Grimaldo Lopes | + 65.000 alunos de Oliveira
MSc Grimaldo Lopes | + 65.000 alunos de Oliveira
1 course
Portuguese
APACHE Superset e Alteryx TRIFACTA - Dados e Visualizações

APACHE Superset e Alteryx TRIFACTA - Dados e Visualizações

(4.50 with 1 reviews)
10
students
4.8 hours
content
Jul 2025
updated
$14.99
Power Query: Lenguaje M aplicado a casos prácticos Office365
Instructor Fernando Pullutasig
Fernando Pullutasig
1 course
Spanish
Power Query: Lenguaje M aplicado a casos prácticos Office365

Power Query: Lenguaje M aplicado a casos prácticos Office365

(4.73 with 82 reviews)
379
students
10 hours
content
Apr 2025
updated
$17.99
Certification in Tableau and Data Visualization
Instructor Human and Emotion: CHRMI
Human and Emotion: CHRMI
1 course
English
Certification in Tableau and Data Visualization

Certification in Tableau and Data Visualization

(4.50 with 13 reviews)
2.0K
students
7.6 hours
content
Sep 2024
updated
$14.99
Dremio: Navegando e preparando o Data Lake para seus dados
Instructor MSc Grimaldo Lopes | + 65.000 alunos de Oliveira
MSc Grimaldo Lopes | + 65.000 alunos de Oliveira
1 course
Portuguese
Dremio: Navegando e preparando o Data Lake para seus dados

Dremio: Navegando e preparando o Data Lake para seus dados

(4.83 with 15 reviews)
51
students
1.8 hours
content
Feb 2026
updated
$14.99
Power Query
Instructor Earn And Excel
Earn And Excel
1 course
English
Power Query

Power Query

(4.19 with 58 reviews)
6.7K
students
5.6 hours
content
Aug 2020
updated
$14.99
Page 5 of 8
14568

Continue exploring

Topics related to Data Preparation & Cleansing

  • 01Alteryx Data Automation26
  • 02Tableau Prep9
  • 03Data Analysis & Preparation23
  • 04Data Visualization & Dashboar…921
  • 05Data Wrangling69
  • 06Alteryx Designer8
  • 07Power Query & M Language151
  • 08Tableau Mastery183
  • 09Data Analysis & Insights559
  • 10Microsoft Power BI588