Introduction to SQL
Corso
25562 Studenti già iscritti4.8
(1689)
- Understand how to extract individual, multiple and all columns from databases.
- Understand the process of sorting and filtering retrieved data to extract meaningful insights.
- Develop abilities in advanced data filtering, using operators and functions to refine queries.
- Become skilled in applying aggregate functions like COUNT, AVG, MAX, MIN, and SUM to analyze data sets.
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Ci sono 5 moduli in questo corso
This course is perfect for beginners ready to explore the world of SQL. Whether you're just starting out in database management or aiming to use SQL for your application development projects, this course covers the essentials. You'll quickly learn how to leverage the full potential of SQL, from querying and managing data to seamlessly integrating it into real-world applications. By the end of the course, you'll have the confidence and skills to solve practical problems with SQL and enhance your development process.- Retrieving Individual ColumnsAnteprima
- Retrieving Multiple ColumnsAnteprima
- Retrieving All ColumnsAnteprima
- Retrieving Distinct RowsAnteprima
- Limiting ResultsAnteprima
- Challenge: Find the Population of the CountriesAnteprima
- Challenge: Find All CountriesAnteprima
- Challenge: Find All Countries With Their IDsAnteprima
- Challenge: Find Country CapitalsAnteprima
- Challenge: Find the Regions in Which All Countries Are LocatedAnteprima
- Sorting DataAnteprima
- Challenge: Population SortAnteprima
- Sorting by Multiple ColumnsAnteprima
- Challenge: Dual-Sort QueryAnteprima
- Specifying Sort DirectionAnteprima
- Challenge: Sort the Countries by Region and CapitalAnteprima
- Challenge: Sort Capitals in Descending OrderAnteprima
- Challenge: Sort Countries in Ascending OrderAnteprima
- Challenge: Find Countries, Their IDs, and Their PopulationsAnteprima
- Challenge: Find Countries, IDs, Populations, Regions, and Sort ThemAnteprima
- Challenge: Find All Continents and Sort Them in Ascending OrderAnteprima
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Perché le persone scelgono Codefinity per la loro carriera

Kwizera Mugisha
The teaching methodology at Codefinity is excellent, and I particularly appreciate how it has prepared me to handle real-world coding problems. Currently, I am delving into Node.js and eagerly anticipate building full-stack projects that integrate all the knowledge I have gained.

Sherry Barnes-Fox
My first course was 4 hours, I did it in a few days, "nugget-style. The instructions are very clear and easy to understand. There is even a hint to help you get the answer, and if you still cannot get the answer, then you can display the answer. I love the learning style that is used, it engages me.

Bill Wagner
I have really liked the browser-based lessons that allow me to code within the lesson. The RUN button allows me to test the code I write before submitting for a grade.

Stephanie Chan
As I went through the first course of the Python track, I liked the way the course was lay out (in easy and digestible modules) with little exercises at the end of each concept.

Daniel Chinea
I have gained a lot of practical and logical thinking skills, along with patience for myself and confidence in myself that I can learn programming.

Steve Bruening
The learning was progressive and made it easy to follow along and make progress. I could feel my skills increasing and building on each other as the course went along.
Recensioni degli studenti
4.9
50 recensioni
5
96%
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Visualizzando 3 di 50 recensioni
Lina Chioma Anaso
5
Esaminato il Apr 24, 2025
I truly appreciate Codeinfinity for the detailed course material provided and well structured platform designed to aid all level of learning.
Samuel Dagostino
5
Esaminato il Apr 24, 2025
5
Esaminato il Apr 23, 2025
Very hand on, great for kinesthetic learners!
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