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Retrieve data as summaries from tables of a database using SQL aggregate functions
Understand how to set conditions on the result set of an aggregate functions using the HAVING clause
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”
Data Management
Data Manipulation
Relational Database
Postgresql
Data Aggregation
In a video that plays in a split-screen with your work area, your instructor will walk you through these steps:
Retrieve data from the employees database
Retrieve data from the employees database using the COUNT function
Select distinct data from fields of a table and use the GROUP BY statement
Use the HAVING clause to set conditions on aggregate functions
Retrieve data from the employees database using the SUM function
Retrieve data from the employees database using the MIN & MAX functions
Retrieve data from the employees database using the AVG function
Use ROUND to tidy up the result set of aggregate functions
Your workspace is a cloud desktop right in your browser, no download required
In a split-screen video, your instructor guides you step-by-step
by LA
Jun 23, 2022Instructor was very good and covered topics quickly and thoroughly
by CC
Jan 11, 2021Class was good. I couldn't find the answer to one of the quiz questions even after going back to the lesson referring to it.
by AC
Dec 29, 2020A complete and easy to understand course on SQL aggregate function.
By purchasing a Guided Project, you'll get everything you need to complete the Guided Project including access to a cloud desktop workspace through your web browser that contains the files and software you need to get started, plus step-by-step video instruction from a subject matter expert.
Because your workspace contains a cloud desktop that is sized for a laptop or desktop computer, Guided Projects are not available on your mobile device.
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At the top of the page, you can press on the experience level for this Guided Project to view any knowledge prerequisites. For every level of Guided Project, your instructor will walk you through step-by-step.
Yes, everything you need to complete your Guided Project will be available in a cloud desktop that is available in your browser.
You'll learn by doing through completing tasks in a split-screen environment directly in your browser. On the left side of the screen, you'll complete the task in your workspace. On the right side of the screen, you'll watch an instructor walk you through the project, step-by-step.
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