Object Oriented Design courses can help you learn principles like encapsulation, inheritance, and polymorphism, along with design patterns such as Singleton and Factory. You can build skills in creating reusable code, improving software maintainability, and designing systems that are easier to understand and extend. Many courses introduce tools like UML for modeling, as well as programming languages such as Java and Python, which are commonly used to implement object-oriented concepts in real-world applications.

Skills you'll gain: PL/SQL, SQL, Business Logic, Stored Procedure, Database Design, Database Management, Database Development, Relational Databases, Data Integrity, Scalability, Program Development
★ 4.8 (19) · Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Retrieval-Augmented Generation, LLM Application, Database Management Systems, Memory Management, Analysis
Intermediate · Course · 1 - 3 Months

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

Simplilearn
Skills you'll gain: Email Marketing, Email Automation, Target Audience, Lead Generation, Marketing Automation, Newsletters, Digital Marketing Tools, Campaign Management, Driving engagement, Promotional Strategies, Marketing Materials, Customer Relationship Management (CRM) Software, Account Management, Customer Engagement, Brand Loyalty, Sales, Growth Strategies, Automation, Law, Regulation, and Compliance
★ 5 (6) · Beginner · Course · 1 - 4 Weeks

Skillshare
Skills you'll gain: Photo Editing, Photography, Visual Storytelling, Post-Production, Editing, Photo/Video Production and Technology, Storytelling, Image Quality, Adobe Photoshop, Creativity
★ 2.9 (8) · Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Database Application, Database Software, Database Management, Interactive Data Visualization, Databases, Database Design, Relational Databases, Database Management Systems
★ 4.1 (7) · Intermediate · Guided Project · Less Than 2 Hours

Illinois Tech
Skills you'll gain: Machine Learning Algorithms, Model Evaluation, Statistical Analysis, Data Visualization, Data Analysis, Exploratory Data Analysis, Statistical Methods, Data Presentation, Analysis, Probability & Statistics, Data Cleansing, Applied Machine Learning, Analytics, Machine Learning, Data Preprocessing, Data Processing, Model Training, Correlation Analysis, Decision Tree Learning, Logistic Regression
★ 4.3 (6) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Database Development, Data Sharing, Database Architecture and Administration, Microsoft SQL Servers, Data Integration, Data Entry, Report Writing, IT Automation, User Interface (UI) Design
Intermediate · Course · 3 - 6 Months

Skills you'll gain: Data Analysis Expressions (DAX), Dashboard Creation, Power BI, Gross Profit, Dashboard, Data Modeling, Data Import/Export, Interactive Data Visualization, People Analytics, Data Analysis, Data Cleansing, Business Reporting, Market Data, Data Transformation, Data-Driven Decision-Making, Case Studies, Data Wrangling, Business Intelligence, Data Manipulation, Business Analysis
★ 4.7 (32) · Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Logo Design, Canva (Software), Photo Editing, Graphic Design, Design, Graphics Software, Visual Design
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Data Mapping, Memory Management, Exploit development, Web Applications, Computational Logic, Code Reusability, Authorization (Computing), Software Development Tools, Security Controls, Other Programming Languages, Software Architecture, Program Development, Maintainability, Data Storage
★ 4.8 (12) · Intermediate · Specialization · 1 - 3 Months

L&T EduTech
Skills you'll gain: Construction, Construction Engineering, Hydrology, Construction Management, Hydraulics, Water Resource Management, Civil Engineering, Water Resources, Energy and Utilities, Environmental Engineering, Electrical Power, Structural Engineering, Sustainable Technologies, Structural Analysis
Intermediate · Course · 1 - 4 Weeks