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 Colorado Boulder
Skills you'll gain: Databases, Database Development, Database Management, Acceptance Testing, Data Architecture, Web Applications, Microservices, Software Architecture, Software Engineering, System Testing, Data Infrastructure, Software Systems, System Monitoring, Functional Requirement, Application Deployment, Site Reliability Engineering, Middleware, Distributed Computing, Prototyping, Big Data
★ 3.6 (20) · Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Apache Cassandra, Data Manipulation, Distributed Computing, Transaction Processing, NoSQL, Database Design, Query Languages, Performance Tuning, Scalability, Data Integrity, Data Management, Java, Java Programming
Beginner · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Integral Calculus, Numerical Analysis, Calculus, Probability, Applied Mathematics, Advanced Mathematics, Estimation, Probability & Statistics, Geometry, Mathematical Modeling, Graphing
★ 4.7 (55) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Stored Procedure, Database Development, SQL, Database Management, Database Architecture and Administration, Test Script Development, Data Integrity, Query Languages, Performance Tuning, Continuous Deployment, Data Transformation, Data Migration, CI/CD, Jest (JavaScript Testing Framework), Verification And Validation, Debugging, Auditing, Plan Execution, Statistical Hypothesis Testing, Computer Graphic Techniques
Advanced · Course · 1 - 3 Months

Macquarie University
Skills you'll gain: Data Security, Threat Detection, Cybersecurity, Cyber Attacks, Cyber Risk, Data Management, Security Management, Encryption, Security Software, Data Sharing, Security Strategy, Network Security, Data Access, Risk Modeling, Statistical Methods
★ 4.6 (15) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Star Schema, Data Infrastructure, Data Governance, Data Modeling, Data Strategy, Data Architecture, Data Migration, Cloud Management, Database Design, Correlation Analysis, Stored Procedure, Data Pipelines, Infrastructure as Code (IaC), Data Validation, Disaster Recovery, Role-Based Access Control (RBAC), Compliance Auditing, CI/CD, Resource Management, Performance Management
Advanced · Specialization · 3 - 6 Months

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, Patient Education And Counseling, Diagnostic Tests, Responsible AI, Data Analysis, Clinical Research, Health Technology, Consumer Behaviour, Artificial Intelligence
Intermediate · Course · 1 - 4 Weeks

Google Cloud
Skills you'll gain: Data Import/Export, Cloud Management, Data Migration, Serverless Computing, File Management, Cloud Computing, Cloud Storage, Operational Databases, Google Cloud Platform, Data Store, Database Development
Beginner · Project · Less Than 2 Hours

Skills you'll gain: Data Storytelling, Data Presentation, Feature Engineering, Data Ethics, Exploratory Data Analysis, Tableau Software, Interactive Data Visualization, Data-Driven Decision-Making, Data Visualization Software, Data Analysis, Analytical Skills, Analytics, Data Cleansing, Data Preprocessing, Data Wrangling, Data Validation
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Pandas (Python Package), Matplotlib, NumPy, Statistical Visualization, Machine Learning Algorithms, Applied Machine Learning, Data Manipulation, Model Optimization, Machine Learning Methods, Pivot Tables And Charts, Linear Algebra, Natural Language Processing, Deep Learning, Programming Principles, Machine Learning, Python Programming, Data Science, Numerical Analysis, Computer Programming, Artificial Neural Networks
★ 4.9 (7) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: File I/O, Code Reusability, Python Programming, Programming Principles, Data Dictionary, File Systems, Computational Logic, Command-Line Interface, Data Cleansing, Data Structures, Package and Software Management, File Management, Scripting, Data Manipulation, Logical Reasoning, Development Environment, Simulations
★ 4.8 (59) · Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Data Centers, Ansible, Open Shortest Path First (OSPF), Routing Protocols, Network Switches, Computing Platforms, Software-Defined Data Center (SDDC), Virtual Networking, Virtual Local Area Network (VLAN), IT Automation, Security Controls, Network Infrastructure, Devops Tools, Network Engineering, Border Gateway Protocol, Network Routers, Network Routing, Infrastructure Security, Network Monitoring, Data Storage Technologies
Intermediate · Course · 1 - 3 Months