コース内容

Gain a solid understanding of SQL essentials tailored specifically for business intelligence. You will master querying, filtering, and aggregating business datasets through hands-on tasks des…

Retrieving Individual Columns

Retrieving Multiple Columns

Retrieving All Columns

Retrieving Distinct Rows

Limiting Results

Challenge: Find the Population of the Countries

Challenge: Find All Countries

Challenge: Find All Countries With Their IDs

Challenge: Find Country Capitals

Challenge: Find the Regions in Which All Countries Are Located

Sorting Data

Challenge: Population Sort

Sorting by Multiple Columns

Challenge: Dual-Sort Query

Specifying Sort Direction

Challenge: Sort the Countries by Region and Capital

Challenge: Sort Capitals in Descending Order

Challenge: Sort Countries in Ascending Order

Challenge: Find Countries, Their IDs, and Their Populations

Challenge: Find Countries, IDs, Populations, Regions, and Sort Them

Challenge: Find All Continents and Sort Them in Ascending Order

Using the WHERE Clause

Challenge: North America Population Sort

The WHERE Clause Operators

Challenge: Population Threshold Query

Checking for a Range of Values

Checking for NO Value

Using the AND Operator

Challenge: Europe Region Sort

Using the OR Operator

Challenge: America Regions Filter

Using the NOT Operator

Challenge: Non-Europe Capitals Sort

The AVG() Function

Challenge: Surface Area Selection

The COUNT() Function

Challenge: Continental Count

The MAX() Function

The MIN() Function

Challenge: Large Surface Area Average

The SUM() Function

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test sql course e2e new task ui

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This course is for you if you are new to SQL, you want to quickly learn how to get the most out of SQL and you want to learn how to use SQL in your own application development.

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SQLの基本を学びます。データのクエリから実際のアプリケーションへの統合までを網羅しています。データベース管理を始めたばかりの方や、アプリケーション開発プロジェクトでSQLを活用したい方に最適なコースです。SQLの持つ力を最大限に活用し、データのクエリや管理から実際のアプリケーションへの統合までを迅速に習得できます。コース修了時には、SQLを用いた実践的な課題解決能力と開発プロセス向上のスキルが身につきます。

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このコースは、SQLの基本的な知識をすでに持っており、より高度な概念を学んで強力なクエリを作成したい方に最適です。コースを通じて、データのグループ化やグループ化されたデータのフィルタリングについて学びます。また、複数のテーブルを同時に扱う方法や、それらを結合する方法についても理解を深めます。さらに、さまざまな種類のテーブル結合とその実践的な適用方法についても探求します。

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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.

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TEST E2E PROGRESS SQL

Description

test sql course e2e new task ui

TEST SQL COURSE E2E

This course is for you if you are new to SQL, you want to quickly learn how to get the most out of SQL and you want to learn how to use SQL in your own application development.

SQL入門

SQLの基本を学びます。データのクエリから実際のアプリケーションへの統合までを網羅しています。データベース管理を始めたばかりの方や、アプリケーション開発プロジェクトでSQLを活用したい方に最適なコースです。SQLの持つ力を最大限に活用し、データのクエリや管理から実際のアプリケーションへの統合までを迅速に習得できます。コース修了時には、SQLを用いた実践的な課題解決能力と開発プロセス向上のスキルが身につきます。

中級SQL

このコースは、SQLの基本的な知識をすでに持っており、より高度な概念を学んで強力なクエリを作成したい方に最適です。コースを通じて、データのグループ化やグループ化されたデータのフィルタリングについて学びます。また、複数のテーブルを同時に扱う方法や、それらを結合する方法についても理解を深めます。さらに、さまざまな種類のテーブル結合とその実践的な適用方法についても探求します。

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.

QNA TEST COURSE

TEST QNA COURSE FOR TESTING CHAT IMPROVEMENTS

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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.

Senior Business Analyst

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. I love the learning style that is used, it engages me.

Accounts Payable Specialist

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.

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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. Years ago, I would have never thought that I could learn programming in any way, shape or form, and I was able to obtain these certifications and skills with Codefinity.

Technology Project Manager

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.

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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.