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Performing Data Aggregation using SQL Aggregate Functions

In this 2-hour long project-based course, you will learn how to retrieve data from tables in a database using SQL SELECT statement with SQL Aggregate functions. The aggregate functions we will consider in this project are COUNT, SUM, MIN, MAX and AVG. Aggregate functions are used to summarize data from rows of a table into a single value. In addition, you will learn how to set conditions on the output of an aggregate function using the HAVING clause. Finally, you will learn how to tidy up the result set of aggregate functions using the ROUND function.

Note: You do not need to be a data administrator or data analyst to be successful in this guided project, just a familiarity with querying databases using SQL SELECT statement suffice for this project. If you are not familiar with SQL and want to learn the basics, start with my previous guided projects titled “Performing Data definition and Manipulation in SQL." and “Querying Databases using SQL SELECT statement”

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What's inside

Syllabus

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what should give you pause

and possible dealbreakers

Explores SQL aggregate functions which are standard in database administration

Teaches learners to summarize data from rows of a table into a single value

Shows how having conditions can be set on the output of an aggregate function

Does not require learners to be SQL experts before they can take it

Covers the basics of SQL like data definition and manipulation

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Reviews summary

Hands-on sql data aggregation project

According to students, this short, project-based course on SQL aggregate functions is overwhelmingly positive. Learners praise its clear and concise explanations and the hands-on practice that makes learning interactive and effective. It's considered excellent for beginners who already have basic SQL SELECT knowledge, offering a solid foundation in COUNT, SUM, MIN, MAX, AVG, and crucial distinctions like WHERE vs. HAVING. While some experienced developers might find the pace a bit slow, the course is widely seen as efficient and highly informative, perfectly executing its goal in just two hours.

Pacing is suitable for beginners, potentially slow for experienced users.

"This is a little slow pace for experienced developers, but overall good basics."

"As a beginner, I found the pace just right for understanding the material thoroughly."

"I appreciated the clear, step-by-step guidance, which made it easy to keep up."

Provides a focused understanding of SQL aggregate functions and HAVING.

"I now have a good understanding of aggregate functions and the difference between WHERE and HAVING."

"The distinction between WHERE and HAVING was very well explained."

"The course clearly covered COUNT, SUM, MIN, MAX, AVG, and the use of ROUND function."

Excellent for those new to aggregate functions with basic SQL knowledge.

"This course is excellent for beginners who have familiarity with SQL SELECT statement."

"A great project for someone who has just started learning SQL. Helped me with the basics."

"As a beginner, I found it very helpful in grasping the aggregate functions quickly."

Explains complex concepts clearly, making them easy to follow.

"The instructor was great, very clear and concise explanations."

"Very easy to follow and the concepts were explained clearly and concisely."

"Found the course to be very well-explained and straight to the point."

Offers practical, project-based exercises for immediate application.

"This course is perfectly executed, especially the hands-on practice, very helpful."

"I really like the project based approach, it makes learning fun and more interactive."

"The hands-on coding and projects are the strongest part of the course for me."

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 Performing Data Aggregation using SQL Aggregate Functions with these activities:

Review SQL SELECT statement

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Strengthen your foundational understanding of SQL SELECT statement, which is essential for this course.

Browse courses on SQL SELECT Statement

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Go over your notes or review online tutorials on SQL SELECT statement syntax and usage.
Practice writing basic SELECT queries using a database or online SQL editor.

Explore aggregate functions in SQL

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Gain a deeper understanding of the aggregate functions covered in this course, such as COUNT, SUM, MIN, MAX, and AVG.

Browse courses on SQL aggregate functions

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Find online tutorials or documentation that explain the different aggregate functions in SQL.
Follow along with the tutorials and try out the examples provided.
Experiment with writing your own queries using aggregate functions.

Practice using aggregate functions and HAVING clause

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Reinforce your understanding of aggregate functions and the HAVING clause by solving practice exercises.

Browse courses on SQL aggregate functions

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Find online platforms or textbooks that provide practice exercises on aggregate functions and HAVING clause.
Solve the exercises and check your answers against the provided solutions.
Identify areas where you need more practice and focus on those.

Two other activities

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Build a data dashboard using SQL aggregate functions

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Apply your skills to create a practical deliverable that showcases your ability to use aggregate functions for data analysis and visualization.

Browse courses on Data Visualization

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Choose a dataset that you are interested in.
Use SQL aggregate functions to summarize and analyze the data.
Design and build a data dashboard that presents the results of your analysis.

Develop a data-driven project using SQL aggregate functions

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Challenge yourself by embarking on a project that requires you to apply your knowledge of aggregate functions to solve a real-world problem.

Browse courses on SQL aggregate functions

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Identify a problem or question that you want to address.
Gather the necessary data and use SQL aggregate functions to analyze it.
Develop a solution or answer based on your analysis.
Present your findings and recommendations.

Career center

Learners who complete Performing Data Aggregation using SQL Aggregate Functions will develop knowledge and skills that may be useful to these careers:

Data Analyst

A Data Analyst uses data to solve business problems. They collect, clean, and analyze data to identify trends and patterns. They then use this information to make recommendations to businesses on how to improve their operations. The skills you will learn in this course, such as how to use SQL aggregate functions to summarize data, will be essential for success in this role.

See salaries and explore the career path for Data Analyst

Business Intelligence Analyst

A Business Intelligence Analyst uses data to help businesses make better decisions. They work with data from a variety of sources to create reports, dashboards, and other visualizations that help businesses understand their performance and identify opportunities for improvement. The skills you will learn in this course, such as how to use SQL aggregate functions to summarize data, will be essential for success in this role.

See salaries and explore the career path for Business Intelligence Analyst

Data Scientist

A Data Scientist uses data to build predictive models and solve complex business problems. They work with a variety of data science tools and techniques to extract insights from data. The skills you will learn in this course, such as how to use SQL aggregate functions to summarize data, will be a helpful foundation for success in this role.

See salaries and explore the career path for Data Scientist

Database Administrator

A Database Administrator is responsible for managing and maintaining databases. They ensure that databases are running smoothly and that data is secure. The skills you will learn in this course, such as how to use SQL aggregate functions to summarize data, will be helpful for success in this role.

See salaries and explore the career path for Database Administrator

Data Engineer

A Data Engineer builds and maintains data pipelines. They work with a variety of data sources and technologies to ensure that data is clean, consistent, and accessible. The skills you will learn in this course, such as how to use SQL aggregate functions to summarize data, will be a helpful foundation for success in this role.

See salaries and explore the career path for Data Engineer

Quantitative Analyst

A Quantitative Analyst uses mathematics and statistics to solve business problems. They work with data from a variety of sources to build models and make predictions. The skills you will learn in this course, such as how to use SQL aggregate functions to summarize data, will be a helpful foundation for success in this role.

See salaries and explore the career path for Quantitative Analyst

Market Researcher

A Market Researcher conducts research to understand consumer behavior and market trends. They use data from a variety of sources to identify opportunities for new products and services. The skills you will learn in this course, such as how to use SQL aggregate functions to summarize data, will be helpful for success in this role.

See salaries and explore the career path for Market Researcher

Financial Analyst

A Financial Analyst uses data to analyze financial performance and make investment recommendations. They work with data from a variety of sources to identify trends and patterns. The skills you will learn in this course, such as how to use SQL aggregate functions to summarize data, will be helpful for success in this role.

See salaries and explore the career path for Financial Analyst

Operations Research Analyst

An Operations Research Analyst uses mathematics and data to solve business problems. They work with a variety of data sources to build models and make recommendations on how to improve operations. The skills you will learn in this course, such as how to use SQL aggregate functions to summarize data, will be helpful for success in this role.

See salaries and explore the career path for Operations Research Analyst

Product Manager

A Product Manager is responsible for the development and launch of new products and services. They work with a variety of stakeholders to ensure that products meet customer needs. The skills you will learn in this course, such as how to use SQL aggregate functions to summarize data, may be helpful for success in this role.

See salaries and explore the career path for Product Manager

Project Manager

A Project Manager is responsible for planning, executing, and closing projects. They work with a variety of stakeholders to ensure that projects are completed on time, within budget, and to the required quality. The skills you will learn in this course, such as how to use SQL aggregate functions to summarize data, may be helpful for success in this role.

See salaries and explore the career path for Project Manager

Software Engineer

A Software Engineer designs, develops, and maintains software applications. They work with a variety of programming languages and technologies to create software that meets user needs. The skills you will learn in this course, such as how to use SQL aggregate functions to summarize data, may be helpful for success in this role.

See salaries and explore the career path for Software Engineer

Web Developer

A Web Developer designs, develops, and maintains websites. They work with a variety of programming languages and technologies to create websites that are user-friendly and meet business needs. The skills you will learn in this course, such as how to use SQL aggregate functions to summarize data, may be helpful for success in this role.

See salaries and explore the career path for Web Developer

Marketing Manager

A Marketing Manager is responsible for developing and executing marketing campaigns. They work with a variety of marketing channels to reach target audiences and promote products and services. The skills you will learn in this course, such as how to use SQL aggregate functions to summarize data, may be helpful for success in this role.

See salaries and explore the career path for Marketing Manager

Sales Manager

A Sales Manager is responsible for leading and managing a sales team. They work with a variety of sales channels to reach target customers and close deals. The skills you will learn in this course, such as how to use SQL aggregate functions to summarize data, may be helpful for success in this role.

See salaries and explore the career path for Sales Manager

Reading list

We've selected ten books that we think will supplement your learning. Use these to develop background knowledge, enrich your coursework, and gain a deeper understanding of the topics covered in Performing Data Aggregation using SQL Aggregate Functions.