Data cleaning courses can help you learn techniques for identifying and correcting errors in datasets, handling missing values, and standardizing data formats. You can build skills in data validation, outlier detection, and transforming raw data into a usable format. Many courses introduce tools like Python libraries such as Pandas and NumPy, as well as software like OpenRefine, that support executing data cleaning tasks efficiently and ensuring data quality for analysis.

University of Illinois Urbana-Champaign
Skills you'll gain: AI Personalization, Nutrition and Diet, Nutritional Assessment, Personalized Service, Clinical Nutrition, Precision Medicine, Medical Nutrition Therapy, Nutrition Education, Data Ethics, Dietetics, Data Collection, Data Capture, Diagnostic Tests, Responsible AI, Data Analysis, Clinical Research, Health Equity, Health Technology, Consumer Behaviour, Continuous Monitoring
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Microsoft SQL Servers, Data Security, Microsoft Azure, Cloud Security, Databases, Database Management, Data Management, Data Access, Security Controls, Authorization (Computing), Role-Based Access Control (RBAC)
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Data Storage Technologies, Data Storage, File Systems, File Management, Information Management, Data Loss Prevention, Servers, Data Management, Disaster Recovery, Data Integrity, Infrastructure Architecture, System Configuration, Scalability, Software Installation
Beginner · Course · 1 - 3 Months

Skills you'll gain: Dashboard Creation, Business Reporting, Spreadsheet Software, Data Presentation, Data Wrangling, Performance Reporting, Analytics, Geospatial Mapping
Beginner · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Big Data, Apache Hadoop, Data Infrastructure, Data Processing, Analytics, Data Science, Data Architecture, Distributed Computing, Linux, Software Installation, Scalability, System Configuration
★ 4.7 (6) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: SQL, SAS (Software), Metadata Management, Data Integrity, Data Maintenance, Query Languages, Relational Databases, Data Manipulation, Data Analysis Software, Database Management, Data Transformation, Data-Driven Decision-Making, Performance Tuning, Data Governance, Debugging, Data Wrangling, Data Analysis, Data Processing, Computational Logic, Data Management
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Predictive Modeling, Matplotlib, Machine Learning Methods, Applied Machine Learning, Seaborn, Statistical Modeling, Data Visualization, Plot (Graphics), Regression Analysis, Machine Learning Algorithms, Pandas (Python Package), Predictive Analytics, Statistical Analysis, Scientific Visualization, Machine Learning Software, Machine Learning, Supervised Learning, Data Science, Statistical Methods, Probability & Statistics
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Computational Thinking, Algorithms, Program Development, Theoretical Computer Science, Software Development, Software Engineering, Programming Principles, Data Structures, Computer Programming, Javascript, Computer Science, Web Development
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Analytical Skills, Analytics, Data Visualization, Scientific Visualization, Trend Analysis, Data-Driven Decision-Making, Business Analytics, Statistical Analysis, Financial Modeling, Data Storytelling, Statistical Modeling, Predictive Modeling, Python Programming, Data Wrangling
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: SAS (Software), Forecasting, Spatial Data Analysis, Data Visualization Software, Data Mapping, Interactive Data Visualization, Time Series Analysis and Forecasting, Trend Analysis, Predictive Analytics, Geospatial Mapping, Data Analysis, Geospatial Information and Technology, Data Wrangling, Geographic Information Systems, Advanced Analytics, Analytics, Data Transformation, Statistical Programming
★ 4.8 (223) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Data Literacy, Statistical Visualization
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Data Visualization, Data-Driven Decision-Making
Mixed · Course · 1 - 4 Weeks