SQL & Database Design A-Z™: Learn MS SQL Server + PostgreSQL from Udemy

Are you interested in a career in Data Science or Data Analytics?

In that case, inevitably you are going to encounter databases in your work.

But how do you interact with databases?

The answer is simple: SQL

SQL stands for Structured Query Language and this is one of the main tools used to organize databases, input data into them and extract it on request.

In this course you will learn how to create queries in a popular variation of SQL called PostgreSQL.

And even if at your workplace you are using a different variation (e.g. Oracle, SQL Server or MySQL), you will find that the skills you learn in this course are easily transferable.

But there are many SQL courses out there, so the question is:

What makes this course stand out?

The unique advantage of this course is that in addition to learning SQL you will also master the concepts of Database Design.

We will cover off topics such as:

- OLAP vs OLTP databases (Online Analytics Processing & Online Transaction Processing): you will understand exactly how and why the designs of these two types of Databases differ

- Normalization of Databases: we will show you the theory behind normalization AND together we will practice how to normalize a Database step-by-step

Why is that important?

Knowing how databases are designed is not a compulsory skill to have for a Data Scientist / Analyst. However, it's a HUGE added benefit.

These skills will allow you to better interact with databases and derive results and extract insights from your data faster.

This course is designed with the Data Scientists and Analysts in mind, so if you want to propel your Data Science career, then this course is for you.

We look forward to seeing you inside,

Kirill & Ilya

What's inside

Learning objectives

Create basic sql queries
Create advanced sql queries
Create left, right, inner and full outer joins
Create new tables, alter existing tables in databases

Normalize databases
Understand database design
Understand first, second and third normal form schemas

Create basic sql queries
Create advanced sql queries
Create left, right, inner and full outer joins
Create new tables, alter existing tables in databases
Normalize databases
Understand database design
Understand first, second and third normal form schemas

Syllabus

Introduction

Welcome Challenge!

Intro Video

Some Additional Resources!!

In this tutorial, you will learn why you should know how the databases design and why it is essential for data scientists

Traffic lights

Read about what's good

what should give you pause

and possible dealbreakers

Develops strong foundational knowledge of SQL and database design, two crucial skills for data scientists

Taught by recognized experts in data science and analytics

Offers hands-on learning through interactive materials and exercises

Covers advanced topics such as database normalization, which is essential for efficient data management

Explores the concepts behind database design, providing a deeper understanding of how databases are structured to optimize data storage and retrieval

Introduces industry-standard tools and practices, ensuring relevance in the job market

Reviews summary

Foundational sql & database design

According to students, this course offers a strong foundational understanding of SQL and database design, specifically tailored for aspiring data professionals. Learners particularly praise the unique and comprehensive coverage of database design and normalization, which many find is often neglected in other SQL courses and is a game-changer for career development in data analytics. The dual approach to learning MS SQL Server and PostgreSQL is highlighted as highly beneficial for understanding syntax differences and ensuring transferable skills across platforms. While many find the explanations clear and the pacing suitable for beginners, a few note that more advanced topics could benefit from deeper practice exercises. Minor feedback suggests that installation instructions might need updating for some software versions.

Great foundation, some desire more advanced practice.

"A solid introduction to SQL and database concepts. Some parts felt a bit rushed, especially in the more advanced SQL topics..."

"It's a good foundation, but I felt I needed more practice problems after the initial ones to truly master it."

"If you are a complete beginner, it's fine, but intermediate users might find it basic."

"Sometimes, I wished for more challenging exercises or a dedicated project at the end to tie everything together."

Instructors explain complex topics with great clarity.

"The instructor explains concepts clearly and provides practical examples for both MS SQL Server and PostgreSQL."

"As a beginner, I found the explanations very easy to follow. The pacing is just right..."

"The instructors, Kirill & Ilya, are phenomenal. They explain difficult concepts with such clarity."

"Overall, a very good course. The strength lies in its clear explanations and the dual coverage of SQL dialects."

Learn both MS SQL Server and PostgreSQL effectively.

"The dual database approach is a huge plus, making the skills very transferable."

"Learning both MS SQL and PostgreSQL side-by-side is a clever way to show syntax differences and similarities."

"Learning both SQL Server and PostgreSQL syntax concurrently was incredibly helpful for seeing the portability of SQL."

"The dual focus on two major SQL dialects is commendable."

In-depth coverage of database design, a unique strength.

"The database design section is gold, truly setting this apart from other SQL courses."

"It doesn't just teach you how to write queries but also the 'why' behind database structure. The normalization lessons were eye-opening."

"And the database design part is a game-changer – it's something most other SQL courses neglect. I feel much more confident interacting with databases now."

"I particularly appreciated the sections on database design and normalization – they really solidify my understanding beyond just querying."

Software installation instructions can be outdated.

"Content is generally good, but I encountered some issues with software installation instructions being slightly outdated for MS SQL Server. It took me a while to get everything set up."

Activities

Be better prepared before your course. Deepen your understanding during and after it. Supplement your coursework and achieve mastery of the topics covered in SQL & Database Design A-Z™: Learn MS SQL Server + PostgreSQL with these activities:

Find a mentor or study buddy

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Connect with a mentor or study buddy to provide support, guidance, and motivation throughout the course.

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Reach out to friends, colleagues, or online communities to find someone who is experienced in SQL or data science.
Explain your goals and ask if they would be willing to mentor or support you.

Organize your course materials

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Stay organized by compiling and reviewing your notes, assignments, and other course materials.

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Create a dedicated folder or notebook for your course materials.
Organize your materials by topic or lesson.
Review your materials regularly to reinforce your understanding.

Review SQL syntax

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Review the basics of SQL syntax to refresh your memory and strengthen your foundation for this course.

Browse courses on SQL Syntax

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Go over your notes or textbooks from previous SQL courses or tutorials.
Take practice quizzes or exercises to test your understanding of SQL syntax.

Five other activities

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Show all eight activities

Follow along with SQL tutorials

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Supplement your learning by following along with tutorials and videos that demonstrate SQL concepts in a practical way.

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Search for SQL tutorials online or on platforms like YouTube.
Choose tutorials that cover topics relevant to this course, such as database design or query optimization.
Follow along with the tutorials and take notes on key concepts and techniques.

Write SQL queries to practice

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Put your SQL skills to the test by writing your own queries and solving problems.

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Find a dataset online or use the one provided in the course materials.
Create a list of questions or scenarios that you want to solve using SQL.
Write SQL queries to answer your questions or solve your scenarios.
Check your results and identify any errors or areas for improvement.

Participate in SQL competitions

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Test your SQL skills and knowledge by participating in online or local SQL competitions.

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Search for SQL competitions online or through organizations like Kaggle.
Choose a competition that aligns with your interests and skill level.
Study and practice SQL to prepare for the competition.
Participate in the competition and submit your solutions.

Create a data analysis project

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Apply your SQL skills by creating a data analysis project that addresses a real-world problem or question.

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Identify a problem or question that you want to solve using data.
Gather and clean the necessary data.
Write SQL queries to analyze the data and extract insights.
Create visualizations and reports to present your findings.
Share your project with others for feedback and discussion.

Build a database and design

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Demonstrate your understanding of database design by creating a database and implementing a specific design.

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Choose a dataset or scenario for your database.
Design the database schema, including tables, columns, and relationships.
Create the database using PostgreSQL or another SQL database management system.
Populate the database with data.
Write SQL queries to demonstrate the functionality and capabilities of your database.

Career center

Learners who complete SQL & Database Design A-Z™: Learn MS SQL Server + PostgreSQL will develop knowledge and skills that may be useful to these careers:

Database Administrator

A Database Administrator (DBA) is responsible for the maintenance and performance of databases. They work with database software, hardware, and network systems to ensure that databases are available, secure, and performant. This course helps build a foundation in SQL, which is a key skill for DBAs. The course also covers database design, which is essential for understanding how databases are structured and organized. This knowledge can help DBAs to better manage and maintain databases.

See salaries and explore the career path for Database Administrator

Data Analyst

A Data Analyst collects, analyzes, interprets, and presents data. They work with business stakeholders to identify and solve problems, and to improve decision-making. This course helps build a foundation in SQL, which is a key skill for Data Analysts. The course also covers database design, which is essential for understanding how data is structured and organized. This knowledge can help Data Analysts to better understand the data they are working with and to develop more effective solutions.

See salaries and explore the career path for Data Analyst

Data Scientist

A Data Scientist uses scientific methods, processes, algorithms, and systems to extract knowledge and insights from data in various forms, both structured and unstructured. This course helps build a foundation in SQL, which is a key skill for Data Scientists. The course also covers database design, which is essential for understanding how data is structured and organized. This knowledge can help Data Scientists to better understand the data they are working with and to develop more effective models.

See salaries and explore the career path for Data Scientist

Data Visualization Engineer

A Data Visualization Engineer designs and develops data visualizations that communicate data insights to users. They work with data analysts and scientists to identify the most effective ways to visualize data and to create visualizations that are both informative and engaging. This course may be helpful for Data Visualization Engineers who want to learn more about SQL and database design. The course can help Data Visualization Engineers to develop a better understanding of how data is stored and organized, and how to use SQL to access and manipulate data.

See salaries and explore the career path for Data Visualization Engineer

Data Engineer

A Data Engineer designs, builds, and maintains data pipelines and systems. They work with a variety of data sources and technologies to ensure that data is clean, consistent, and available for analysis. This course may be helpful for Data Engineers who want to learn more about SQL and database design. The course can help Data Engineers to develop a better understanding of how data is stored and organized, and how to use SQL to access and manipulate data.

See salaries and explore the career path for Data Engineer

Information Architect

An Information Architect designs and organizes information systems, including databases. They work with stakeholders to identify and define the information needs of an organization and to develop systems that meet those needs. This course may be helpful for Information Architects who want to learn more about SQL and database design. The course can help Information Architects to develop a better understanding of how data is stored and organized, and how to use SQL to access and manipulate data.

See salaries and explore the career path for Information Architect

Risk Analyst

A Risk Analyst identifies, assesses, and manages risk. They work with data to develop models that can be used to predict future events and to make decisions about risk management. This course may be helpful for Risk Analysts who want to learn more about SQL and database design. The course can help Risk Analysts to develop a better understanding of how data is stored and organized, and how to use SQL to access and manipulate data.

See salaries and explore the career path for Risk Analyst

Software Engineer

A Software Engineer designs, develops, tests, and maintains software systems. They work with a variety of programming languages and technologies to create software that meets the needs of users. This course may be helpful for Software Engineers who want to learn more about SQL and database design. The course can help Software Engineers to develop a better understanding of how data is stored and organized, and how to use SQL to access and manipulate data.

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Management Consultant

A Management Consultant helps organizations to improve their performance. They work with clients to identify and solve problems, and to develop and implement solutions. This course may be helpful for Management Consultants who want to learn more about SQL and database design. The course can help Management Consultants to develop a better understanding of how data is stored and organized, and how to use SQL to access and manipulate data.

See salaries and explore the career path for Management Consultant

Operations Research Analyst

An Operations Research Analyst uses mathematical and analytical techniques to solve problems in a variety of industries. They work with data to develop models and solutions that improve efficiency and effectiveness. This course may be helpful for Operations Research Analysts who want to learn more about SQL and database design. The course can help Operations Research Analysts to develop a better understanding of how data is stored and organized, and how to use SQL to access and manipulate data.

See salaries and explore the career path for Operations Research Analyst

Statistician

A Statistician collects, analyzes, and interprets data. They work with data to identify patterns and trends, and to develop models that can be used to make predictions. This course may be helpful for Statisticians who want to learn more about SQL and database design. The course can help Statisticians to develop a better understanding of how data is stored and organized, and how to use SQL to access and manipulate data.

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Actuary

An Actuary uses mathematical and statistical techniques to assess risk and uncertainty. They work with data to develop models that can be used to predict future events and to make decisions about risk management. This course may be helpful for Actuaries who want to learn more about SQL and database design. The course can help Actuaries to develop a better understanding of how data is stored and organized, and how to use SQL to access and manipulate data.

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Financial Analyst

A Financial Analyst uses financial data to make investment recommendations and to evaluate the performance of investments. They work with data to develop models and to make recommendations on how to allocate funds. This course may be helpful for Financial Analysts who want to learn more about SQL and database design. The course can help Financial Analysts to develop a better understanding of how data is stored and organized, and how to use SQL to access and manipulate data.

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Business Analyst

A Business Analyst works with business stakeholders to identify and solve problems, and to improve decision-making. They use a variety of tools and techniques to analyze data, develop solutions, and communicate findings. This course may be helpful for Business Analysts who want to learn more about SQL and database design. The course can help Business Analysts to develop a better understanding of how data is stored and organized, and how to use SQL to access and manipulate data.

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Market Research Analyst

A Market Research Analyst collects, analyzes, and interprets data about consumers and markets. They work with data to identify trends and opportunities, and to develop strategies for marketing products and services. This course may be helpful for Market Research Analysts who want to learn more about SQL and database design. The course can help Market Research Analysts to develop a better understanding of how data is stored and organized, and how to use SQL to access and manipulate data.

See salaries and explore the career path for Market Research Analyst