SQL courses can help you learn database design, data manipulation, query optimization, and data retrieval techniques. You can build skills in writing complex queries, managing relational databases, and ensuring data integrity. Many courses introduce tools like MySQL, PostgreSQL, and Microsoft SQL Server, demonstrating how to use these platforms for data analysis and reporting. You'll also explore key topics such as joins, indexing, and transaction management, which are vital for effective data management and analysis.

Starweaver
Skills you'll gain: SQL, Business Intelligence, Jupyter, Python Programming
Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Data Pipelines, Dataflow, Extract, Transform, Load, Data Processing, Data Integration, Data Quality, Data Transformation, Data Warehousing, Google Cloud Platform, Big Data, Apache Spark, Performance Tuning
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Apache Kafka, Apache Hadoop, Apache Spark, Real Time Data, Scala Programming, Data Integration, Command-Line Interface, Apache Hive, Big Data, Applied Machine Learning, Data Processing, Apache, System Design and Implementation, Apache Cassandra, Data Pipelines, Java, Distributed Computing, IntelliJ IDEA, Application Deployment, Enterprise Application Management
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: PySpark, MySQL, Data Pipelines, Apache Spark, Data Processing, SQL, Data Transformation, Data Manipulation, Distributed Computing, Python Programming, Debugging
Mixed · Course · 1 - 4 Weeks

EDUCBA
Skills you'll gain: Model View Controller, Java Platform Enterprise Edition (J2EE), Back-End Web Development, Server Side, Data Access, Apache Tomcat, Application Servers, Relational Databases, Databases, Java, Web Servers, SQL, Authentications, Web Applications, Secure Coding, Software Design Patterns, Data Persistence, Context Management
Intermediate · Course · 1 - 3 Months

Politecnico di Milano
Skills you'll gain: Data Strategy, Data Ethics, Customer Data Management, Market Opportunities, Data Governance, Data Management, Data-Driven Decision-Making, Big Data, Customer Insights, Personally Identifiable Information, Advertising, Strategic Thinking, Business Transformation, Business Ethics, User Research, Innovation
Beginner · Course · 1 - 4 Weeks

LearnKartS
Skills you'll gain: Spring Framework, Spring Boot
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Databricks, Real Time Data, PySpark, Apache Hive, Apache Spark, Big Data, Data Processing, SQL, Data Manipulation, Pandas (Python Package)
Intermediate · Guided Project · Less Than 2 Hours

Google Cloud
Skills you'll gain: Data Access, Machine Learning, Google Cloud Platform, Data Transformation, Data Infrastructure, SQL, Applied Machine Learning, Big Data, Dashboard, Database Management, Data Cleansing, Artificial Intelligence and Machine Learning (AI/ML), Data Preprocessing, Data Warehousing, Cloud Infrastructure, Data Analysis, Data Visualization Software, Data Architecture, Data Integration, Query Languages
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Penetration Testing, OSI Models, Exploitation techniques, TCP/IP, Network Protocols, Distributed Denial-Of-Service (DDoS) Attacks, Network Security, Cyber Security Assessment, General Networking, Vulnerability Scanning, Cybersecurity, Web Development, Prompt Engineering, Large Language Modeling, Scripting, Python Programming, SQL, Command-Line Interface, Data Structures
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Databricks, Data Governance, Microsoft Azure, Data Lakes, Real Time Data, Data Management, Data Integration, Data Pipelines, Data Quality, User Provisioning, Performance Tuning
Advanced · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Responsive Web Design, Restful API, User Interface (UI) Design, Application Programming Interface (API), Web Development Tools, Database Design, HTML and CSS, API Design, Front-End Web Development, MongoDB, Javascript, Postman API Platform, Bootstrap (Front-End Framework), React.js, UI Components, Ajax, Database Management, OAuth, Frontend Integration, Authentications
Intermediate · Specialization · 1 - 3 Months