Introduction to SQL
This course offers an easy-to-follow introduction to the basics of SQL databases and the Structured Query Language (SQL). Through engaging video lessons and thoughtfully crafted exercises, you’ll explore essential concepts step by step. Each topic is explained in detail and paired with hands-on practice to ensure you not only understand but also retain what you’ve learned.Course
Gain insight into a topic and learn the fundamentalsновинка
Beginner
Recommended experience58 chapters
Flexible schedule
Learn at your own paceView course modules
Outcomes
Learning outcomes
Modules
Testimonials
Recommendations
Codefinity advantages
FAQs
Outcomes
Learning outcomes
Modules
Testimonials
Recommendations
Codefinity advantages
FAQs
What you will learn
- 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.
- Learn how to create, update, delete databases and tables.
Details to know
Earn a career certificateAdd to your LinkedIn profile
Assessments43 assignments
AI copilotYour personal assistant
Equip your business with cutting-edge Data and AI expertise.
Join employees from leading companies and many of the Fortune 100 who trust Codefinity to elevate their skills.
This course is for you, if...
You’re preparing for a promotionPosition yourself for career advancement by acquiring new skills and knowledge that will make you stand out to your employer
You’re a jobseeker looking to enhance your resumeAdd valuable skills to your resume and make yourself more attractive to potential employers. This course will give you a competitive edge in the job market.
You want to escape the 9-to-5 grindOur course provides the skills needed to transition into freelancing or remote work, giving you the freedom to work on your terms.
You’re passionate about continuous learningStay ahead in the rapidly evolving IT field with our comprehensive course. It’s designed for lifelong learners who want to continuously enhance their skills and knowledge.
Data Engineer Course
Earn a career certificate
Add this credential to your LinkedIn profile, resume, or CV
Share it on social media and in your performance review
Share it on social media and in your performance review
There are 6 modules in this course
This course offers an easy-to-follow introduction to the basics of SQL databases and the Structured Query Language (SQL). Through engaging video lessons and thoughtfully crafted exercises, you’ll explore essential concepts step by step. Each topic is explained in detail and paired with hands-on practice to ensure you not only understand but also retain what you’ve learned.This section will introduce you to coding in SQL. It will start with some basic information related to SQL and SQL Databases in general, eventually moving towards writing basic SQL queries. The section also includes some fun exercises where you will get to practice the SQL syntax.
- What is SQL?Preview
- Setting Up SQL and SSMSPreview
- Getting Familiar with SSMSPreview
- Structure of an SQL Database SystemPreview
- The SELECT StatementPreview
- Challenge: First Day as a LibrarianPreview
- Challenge: Find all Book TitlesPreview
- Challenge: Find Book Titles and AuthorsPreview
- The DISTINCT KeywordPreview
- Challenge: Find all GenresPreview
We will get an introduction to filtering data from our selections. This will give us control over what kind of data we fetch from the database. This section will cover the syntax for filtering data and various operators which can help us write robust conditions for conditional selection of data.
- The WHERE ClausePreview
- Challenge: Help a Reader Find Their Favorite GenrePreview
- Challenge: Fetching Older BooksPreview
- Conditional Expressions: Comparison OperatorsPreview
- Challenge: Avoid the Damaged BooksPreview
- Challenge: Highlight New ArrivalsPreview
- Challenge: Budget-Friendly BooksPreview
- Conditional Expressions: The AND OperatorPreview
- Challenge: Find Specific Books for a ReaderPreview
- Challenge: Defining RangesPreview
- Challenge: Multiple ConditionsPreview
- Conditional Expressions: The OR OperatorPreview
- Challenge: Matching Multiple OptionsPreview
- Challenge: Excluding A RangePreview
- Conditional Expressions: The NOT OperatorPreview
- Challenge: Negating a RangePreview
This section focuses on concepts related to sorting the tables based on the column values. Sorting can be useful in extracting the minimum or maximum values from a column or for making it easier to find relevant information quickly. We will also look at a keyword which can help us limit the number of rows that are fetched by our SELECT statements, making our queries more concise.
- Basic SortingPreview
- Challenge: Sorting the Library CataloguePreview
- Sorting by Multiple ColumnsPreview
- Challenge: Further Sorting the CataloguePreview
- Sorting after Filtering DataPreview
- Challenge: Find the Cheapest BooksPreview
- Challenge: Help a Customer Find a BookPreview
- The LIMIT KeywordPreview
- Challenge: Select Books for the Collector's SectionPreview
- Challenge: Affordable BooksPreview
You will learn about useful queries and keywords that can help us in populating a database with some data. This will include queries for creating tables, and for inserting rows into those tables. We will also cover two additional keywords that can help us in making our tables more intractable and robust.
- Creating a TablePreview
- Challenge: Creating a new Books TablePreview
- Inserting Rows into a TablePreview
- Challenge: Inserting DataPreview
- Challenge: Inserting More DataPreview
- Inserting Multiple RowsPreview
- Challenge: Inserting Bulk DataPreview
- Primary KeysPreview
- The SERIAL KeywordPreview
- Challenge: Changing the Books StructurePreview
- Specifying Default ValuesPreview
- Challenge: Further Improving the Books TablePreview
We will look at how to modify or delete data in an SQL database. This will include queries for updating or deleting rows in a table and making a copy of a table or deleting it.
- Updating Rows in a TablePreview
- Challenge: Correct Book's DataPreview
- Challenge: Updating Page CountsPreview
- Challenge: Mark Archived Books As UnavailablePreview
- Deleting RowsPreview
- Challenge: Deleting Outdated RecordsPreview
- Duplicating TablesPreview
- Challenge: Create a Table BackupPreview
- Challenge: Generate a Summarized Books TablePreview
- Deleting TablesPreview
Chosen by students of top schools
Including 30 out of top-30 U.S. colleges
Why people choose Codefinity for their career
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.
Learner reviews
NaN
0 reviews
5
NaN%
4
NaN%
3
NaN%
2
NaN%
1
NaN%
Showing 0 of 0 reviews
Recommended if you're interested in learning SQL
Codefinity advantages
AI-Assisted Learning
Embrace the fascination of Tech Skills! Our AI-assistant provides real-time feedback, personalized hints, and error explanations, empowering you to learn with confidence.
Workspaces
With Workspaces, you can create and share projects directly on our platform. We've prepared templates for your convenience
Learning tracks
Take control of your career development and commence your path into mastering the latest technologies
Real-world projects
Real-world projects elevate your portfolio, showcasing practical skills to impress potential employers
Full catalog access
One subscription opens up this course and our entire catalog of projects and skills.Unlock access to Introduction to SQL and the rest of our best-in-class catalog
Top-rated, curated contentNew courses added weeklyAl assistant to answer any questionsPassionate community of learnersProBest intro offer$12 /monthBilled annually
100+ Top-Rated coursesCompletion certificatesAI-Assistant in all courses
20+ hands-on Real-world projectsPersonalized study tracksUnlimited workspacesUltimateAll you need to to boost your career$25 /monthBilled annually
100+ Top-Rated coursesCompletion certificatesAI-Assistant in all courses20+ hands-on Real-world projectsPersonalized study tracksUnlimited workspacesYour subscription also includes:
Frequently asked questions
Is Codefinity worth the investment?
We believe so! Our courses, designed by industry experts, offer relevant, in-demand skills. With interactive content and practical projects, you’ll enhance your learning experience boost your career, and stay ahead in the job market.
Why do I need Codefinity?
Codefinity equips you with essential coding, data science, and AI skills for today's job market. Whether starting a new career, advancing in your current role, or learning something new, our interactive courses provide the knowledge and experience needed. Suitable for all skill levels, Codefinity boasts a Trustpilot rating of 4.4 and over 1.5 million users worldwide, ensuring you’re in good hands.
Is Codefinity good for beginners?
Absolutely! Our courses are designed for beginners and also offer advanced content for experienced learners. Whether you're new or expanding your knowledge, we have the right course for you.
Are the skills taught on Codefinity up-to-date with industry standards?
Yes, our curriculum is regularly updated to match current industry trends and best practices, ensuring you learn relevant skills, including the latest in data science and AI.
Are Codefinity certificates recognized by employers?
Our certificates demonstrate your skills. While employer recognition varies, many graduates have successfully used them to enhance resumes and advance careers.
How much time do I need to commit to Codefinity courses?
Our self-paced courses let you learn at your convenience. Spend as little or as much time as you need based on your schedule and goals.
Is there a satisfaction guarantee?
Yes, we offer a 30-day money-back guarantee. If you're not satisfied, request a refund within 30 days. See our refund policy for details.
How do I cancel my subscription?
Go to your account settings and follow the instructions to cancel. If you encounter issues, our support team is available to assist. Refer to our cancellation policy for details.
Still have questions?
Write your question here
