Free Course Image Databases

Free online courseDatabases

Duration of the online course: 11 hours and 8 minutes

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Learn the fundamentals of SQL with CS50's free online course. Explore querying, relating, designing, writing, viewing, optimizing, and scaling databases. Start now!

In this free course, learn about

  • Introduction to SQL and Querying
  • Designing and Writing Databases
  • Optimizing and Scaling Databases

Course Description

Welcome to "Databases with SQL," an expertly crafted course that delves into the world of databases using the powerful SQL language. Designed for individuals keen on mastering the fundamentals and advanced concepts of SQL, this comprehensive course runs for a total duration of 11 hours and 8 minutes. As part of a prestigious series, this course is an invaluable addition to the Information Technology category, focusing specifically on Database management.

The journey begins with "SQL - Introduction," where you'll gain a solid foundation in SQL. This introductory module will equip you with the essential skills needed to navigate through databases, understand their structure, and execute basic queries.

Next, the course advances to "SQL - Lecture 0 - Querying," placing emphasis on the art of querying databases. You'll learn how to retrieve specific data from large datasets using efficient query techniques, enhancing your ability to gather and manipulate information as needed.

"SQL - Lecture 1 - Relating" is designed to teach you about relational databases and the importance of establishing relationships between different tables. By the end of this module, you’ll have a clear understanding of how to join tables and create meaningful associations within your database.

The course continues with "SQL - Lecture 2 - Designing," where database design principles are covered extensively. You will learn how to structure and design your database to ensure data integrity, optimize performance, and support scalability.

"SQL - Lecture 3 - Writing" focuses on coding best practices within SQL. This part of the course emphasizes the importance of writing clean, efficient, and readable SQL code, making your databases more manageable and easier to understand.

In "SQL - Lecture 4 - Viewing," visualization techniques are introduced. You will learn how to create and manage views to present data in a more organized and user-friendly manner, aiding in better data interpretation and decision-making processes.

"SQL - Lecture 5 - Optimizing" is where you’ll explore the intricacies of optimizing SQL queries. This module teaches various optimization techniques to improve query performance, ensuring your database runs smoothly even under heavy load.

Finally, "SQL - Lecture 6 - Scaling" covers the principles and practices of scaling databases. You will gain insights into managing large databases, balancing loads, and ensuring the system’s efficiency as it grows, which is crucial for real-world applications where data volume can escalate rapidly.

Whether you are an IT professional looking to deepen your database knowledge, a developer seeking to enhance your SQL skills, or a student aiming to break into the field, "Databases with SQL" provides a robust and structured learning path. Enroll today and embark on a journey to becoming proficient in database management and SQL.

Course content

  • Video class: CS50 SQL - Introduction 01m
  • Exercise: What initial software does the course use to introduce querying a table of data?
  • Video class: CS50 SQL - Lecture 0 - Querying 1h19m
  • Exercise: In a database, why might one choose to use a database instead of a spreadsheet for storing and managing data?
  • Video class: CS50 SQL - Lecture 1 - Relating 1h41m
  • Exercise: What SQL concept allows you to connect multiple tables using common columns to form a larger data set?
  • Video class: CS50 SQL - Lecture 2 - Designing 1h21m
  • Exercise: Which SQL statement can be used to add a new column to an existing table in SQLite?
  • Video class: CS50 SQL - Lecture 3 - Writing 1h43m
  • Exercise: In the context of managing a museum's art collection database, which SQL operation would most appropriately log a record of an artwork being removed from the collection, while also automatically recording the transaction in a separate table?
  • Video class: CS50 SQL - Lecture 4 - Viewing 1h22m
  • Exercise: Which SQL statement can be used to simplify a query that combines multiple tables into a more manageable virtual table?
  • Video class: CS50 SQL - Lecture 5 - Optimizing 1h28m
  • Exercise: What is a key benefit of using an index in a database?
  • Video class: CS50 SQL - Lecture 6 - Scaling 2h09m
  • Exercise: Which of the following is an advantage of using a database server like MySQL or PostgreSQL instead of an embedded database like SQLite?

This free course includes:

11 hours and 8 minutes of online video course

Digital certificate of course completion (Free)

Exercises to train your knowledge

100% free, from content to certificate

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