Complete Guide on SQL JOINs! Here's what's inside: 👉 All About JOINs: Get to grips with everything from INNER JOIN to FULL JOIN and more. 👉 Rich Learning Resources: Discover a wealth of tutorials, cheat sheets, and examples to enhance your learning. 👉 Easy-to-Understand Format: Designed for beginners, our guide breaks down complex JOIN concepts into digestible information. Read it now: https://lnkd.in/dSZz_ksV #SQLJoins #DataAnalysis #DatabaseManagement #LearnSQL #SQLBeginners
LearnSQL.com
E-Learning Providers
Warsaw, Mazowieckie 34,899 followers
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About us
LearnSQL.com is the leading platform for learning SQL, the 3rd most common programming language. Offering over 70 SQL courses, we have assisted more than 100,000 data analysts, database engineers, and data scientists in advancing their data-driven careers. We believe that learning by doing is the most effective way to master SQL. That's why, in every course on our platform, you face real-life business challenges that you must solve by writing your own queries. However, at LearnSQL.com, you can get much more than hands-on SQL courses. Our course offerings include: ✅ Tailored SQL training and onboarding solutions for your team. ✅ Courses not only on SQL Standard but also in PostgreSQL, MySQL, MS SQL Server, and PostGIS. ✅ More than 192 cookbooks and 738 articles from our SQL Library to supplement your practical learning experience. ✅ Friendly and reliable support to help you throughout your learning journey. ✅ Free SQL Competency Certification. Whether you want to become a Data Analyst, Scientist, or work with databases in any other capacity, we have designed our platform to provide you with the best learning experience. LearnSQL.com - the only platform you'll ever need to master SQL!
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https://learnsql.com/?utm_source=linkedin&utm_medium=social
External link for LearnSQL.com
- Industry
- E-Learning Providers
- Company size
- 11-50 employees
- Headquarters
- Warsaw, Mazowieckie
- Type
- Educational
- Founded
- 2020
- Specialties
- SQL , SQL onboarding, SQL courses, and SQL training
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Primary
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Filona 16
Warsaw, Mazowieckie 02-658, PL
Employees at LearnSQL.com
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Jakub Romanowski
B2B Commerce Marketing Manager at e-point || Head Of Marketing at Vertabelo
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Tihomir Babić
Professional Writer | SEO Technical Articles & Blog Content |
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Valentyn Kucherenko
Customer Advocacy Specialist | Digital Marketing | Content Strategy | Building Brand Loyalty on LinkedIn
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Maria Durkin
Music | Data
Updates
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LearnSQL.com reposted this
It said from A to Z. And the thing is, is not a joke at all. More than SQL 700 exercises. I sweat a lot with this one. 💪 LearnSQL.com
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Having the same duplicate data in the table is simply a waste of time, space, and money. In this article, we will discuss how you can find and fix those duplicates in SQL by using the GROUP BY and HAVING clauses. #sql #SQLhaving #SQLgroupby #duplicatevalues #duplicaterows #LearnSQL #PracticeSQL
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🎉 Excited to share that I’ve earned my SQL Professional Certificate from LearnSQL.com! This certification validates my skills in Basic SQL Queries, Joins, Standard Functions, Intermediate Reports, and Complex SQL Reports. Grateful for the opportunity to deepen my data analytics expertise as a final-year B.Tech (CSE - AI & ML) student at NMREC. Ready to apply these skills in real-world projects! #SQL #DataAnalytics #Certification #Tech #AI #MachineLearning #NMREC
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LearnSQL.com reposted this
SQL is a programming language designed specifically to communicate with databases. It allows you to get the data from a database or change the data within it. Like any programming language, SQL has a syntax you must adhere to. In other words, there are rules to follow regarding its commands if you want your code to work. In today’s article, we’ll give you a walkthrough of core SQL syntax with a focus on the SELECT, WHERE, GROUP BY, HAVING and ORDER BY statements.
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LearnSQL.com reposted this
I am excited to share Part 2 of my series on applying LearnSQL.com’s Data Analyst Cheat Sheet. This article explores the Customers and Products domain using Tableau’s Superstore dataset, covering techniques like trend analysis, ranking, and segmentation. The post includes the same process as well: SQL Techniques (Code) + Metric Patterns (Problem Type) + Cheat Sheet (Thought Process) Article 👉 https://lnkd.in/g7f8cHan Cheatsheet 👉 https://lnkd.in/giJyFsyZ Part 1 👉 https://lnkd.in/gmerQJJC I’d like to hear everyone’s thoughts and feedback on this series! #SQL #LearnSQL #CareerDevelopment #DataAnalysis #Interviews #Tableau #CheatSheet
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15 Tricky Advanced SQL Interview Questions As an advanced SQL user, you need to be able to recognize and avoid traps that pop up in real-life problems. No wonder interviewers are simply obsessed with using tricky questions to test your knowledge! So, what better way to be prepared for that than knowing some of the most common trick questions? We cover some of them in this article. They include topics like: ✅Joining multiple tables ✅OUTER JOINs ✅LEFT JOIN ✅Self-join ✅GROUP BY multiple columns ✅HAVING ✅Different ways of using COUNT() ✅Correlated subquery ✅UNION and UNION ALL ✅NULLs Do these topics sound too easy to be tricky? Well, have a look at the questions and you’ll see this simplicity can be pretty deceptive. Read the article ➡️ https://lnkd.in/dGxJr5xc #SQLinterview #SQLJob #JobInterview
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SQL Aggregate Functions Cheat Sheet Aggregate functions – including the sum, average, count, minimum value, and maximum value – are central to effective data analysis. You’ll often need to extract aggregates by group, and sometimes you’ll want to order or filter by aggregate. It’s all there in the SQL Aggregates Functions Cheat Sheet. This quick Cheat Sheet will help you gain confidence and skills in using SQL aggregates → ➡️ https://lnkd.in/dMPQrEps #SQL #DataAnalysis #LearnSQL
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How to Install MySQL on Ubuntu? Do you want to know more about using MySQL on an Ubuntu system? Read this article to learn how to install MySQL on Ubuntu fast ➡️ https://lnkd.in/duDZjKQk #ubuntu #mysql #InstallMySQL
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Are your SQL queries slow? Learn how indexes can improve SQL query performance. Check out our guide to SQL indexing best practices➡️ https://lnkd.in/dMNPKWjn #SQL #DataAnalysis #LearnSQL