Startseite Kurse durchsuchen Data Science SQL from Scratch
Kostenloser Kurs English Verifiziertes Zertifikat Beginner #Data Science #sql #scratch

SQL from Scratch

EN PL

Learn SQL from the ground up and start using it for real tasks fast. You will build a clear understanding of databases, write practical queries, join tables, and shape data for everyday analysis, even if you are new to technical work.

4.6 (5 Bewertungen)
111 eingeschriebene Lernende
524 Aufrufe
17 lessons
~45 min gesamt
Im eigenen Tempo, lebenslanger Zugriff

Worum geht es in diesem Kurs?

A practical, beginner-friendly course for working adults who want to learn SQL fast and use it right away. You will start with the core building blocks of databases, then move into writing real queries, combining tables, and shaping data for everyday analysis. Each module includes short explanations, concrete examples, and small case studies so you can see how SQL works in the real world. You do not need a technical background to follow along-just curiosity, a computer, and a willingness to practice. By the end of the course, you will be able to read, write, and adjust SQL queries with confidence for common tasks at work.

Was sind die wichtigsten Fakten zu diesem Kurs?

Preis Kostenlos
Zertifikat Verifiziertes Zertifikat
Dauer 45 min
Lektionen 17
Sprache English
Niveau Beginner
Prüfung Im eigenen Tempo, lebenslanger Zugriff

Lehrplan

5 modules · 17 lessons

1
Getting Started with SQL
4 lessons
  • What SQL Is and Why It Matters
  • How Relational Databases Are Organized
  • Your First Queries: SELECT and FROM
  • Filtering Data with WHERE
2
Working with Data and Basic Logic
4 lessons
  • Sorting Results with ORDER BY
  • Limiting and Cleaning Up Results
  • Using AND, OR, and NOT
  • Working with Ranges, Lists, and Pattern Matching
3
Summarizing Data with Aggregates
4 lessons
  • COUNT, SUM, AVG, MIN, and MAX
  • Grouping Data with GROUP BY
  • Filtering Summaries with HAVING
  • Building Practical Reports from Summaries
4
Joining Tables and Querying Like a Pro
4 lessons
  • Why Joins Matter
  • Inner Joins and Left Joins
  • Handling Multiple Tables and Missing Matches
  • Using Subqueries for Step-by-Step Questions
5
Course Summary
1 lessons
  • Course Summary and Next Steps

Abschlusszertifikat

Nach Abschluss des Kurses schaltest du ein verifiziertes Zertifikat frei — als PDF herunterladbar, mit eindeutiger Nummer und Verifizierungslink.

Jedes Zertifikat hat einen eindeutigen Verifizierungslink und QR-Code.

Häufig gestellte Fragen

Is this course free to start?

Yes. You can start learning this course for free.

Who is this course for?

This course is designed for learners who want practical, job-relevant skills and a structured path from basics to application.

Do I need prior experience?

No prior experience is required unless specific prerequisites are listed in the course requirements section.

How long does this course take?

The estimated total study time for this course is 45 min.

How does the certificate work?

Nach Abschluss des Kurses kannst du ein verifiziertes Zertifikat mit eindeutiger Nummer und öffentlichem Verifizierungslink herunterladen.

Bewertungen von Lernenden

4.6
5 Bewertungen
5
3
4
2
3
0
2
0
1
0
C
Christopher G. Verifiziert · 7 Jun 2026

JOINs finally clicked

I finally got table joins.

R
Rachel T. Verifiziert · 7 Jun 2026

The real query examples were the best part, especially filtering and combining tables.

D
Daniel P. Verifiziert · 7 Jun 2026

Good intro to SELECT

The little case studies made GROUP BY feel useful instead of abstract.

M
Michael B. Verifiziert · 7 Jun 2026

Clear and practical

Solid on the basics, especially shaping data for analysis. I just would've liked a few more practice questions after each module.

O
Olivia H. Verifiziert · 7 Jun 2026

Good pace, though a couple sections on database building could've been a bit shorter.

Das könnte Ihnen auch gefallen

JavaScript for Interactive Websites Kostenlos Verified
🇬🇧 EN 17 30 min

JavaScript for Interactive Websites

#Programmier-Grundlagen #javascript #interactive
4.5 (4) · 132
SQL for Business Analysis Kostenlos Verified
🇬🇧 EN 17 3h

SQL for Business Analysis

#Data Science #sql #business
4.8 (5) · 19
Python for Data Analysis Kostenlos Verified
🇬🇧 EN 17 3h

Python for Data Analysis

#Data Science #python #data
4.3 (3) · 57
The Most Interesting Python Libraries That Can Make Money for You Kostenlos Verified
🇬🇧 EN 17 15 min

The Most Interesting Python Libraries That Can Make Money for You

#Programmier-Grundlagen #most #interesting
4.7 (3) · 125