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Data Science

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Data Analysis

SQL Basics from a Silicon Valley Data Leader

If you work with data, SQL is a fundamental skill you must know. In this course, we will learn SQL from a data analysis perspective, focusing on hands-on practice. The practice will be conducted in Google Colab using DuckDB.

(5.0) 3 reviews

66 learners

  • keeyonghan9539
이론 실습 모두
실무적용
데이터분석
sql
SQL
Data literacy
Data Engineering
Big Data
DBMS/RDBMS

What you will learn!

  • SQL syntax and data analysis skills using SQL

  • How to use the DuckDB data warehouse

Learn from a 30-year Silicon Valley data expert
Practical SQL for Data Analysis

Hello. I am Ki-Yong Han, a Silicon Valley data expert with 30 years of experience. After starting my career at Samsung Electronics, I left for Silicon Valley at the age of 31. I share my knowledge of data warehouses and SQL based on the know-how I gained from building data teams at organizations such as Udemy (listed on NASDAQ in 2021) and Polyvore (acquired by Yahoo in 2015) and providing data consulting to various Silicon Valley and Korean companies.


How do we handle data in practice?
Can I solve this by just learning SQL grammar ?

•••

No it is not

Practical SQL must be learned from a data analysis perspective


When and which SQL syntax to use
We present a “logical approach”

SQL is a core tool for data management and analysis. SQL is used in all processes of designing databases, creating tables, extracting necessary data, and analyzing them. Therefore, you should start by understanding the database and table structure. In other words , when you understand how data is organized and stored, you can develop the ability to use various SQL grammars appropriately for the situation .

Lecture Features

The most widely used and easiest to install practice environment

This lecture uses DuckDB, the most widely used embedded data warehouse database, and Google Colab as a practice environment. In many cases, if it is paid or the installation is complicated, setting up the practice environment itself can be a big obstacle to learning. For that reason, we have set up a practice environment that is easy to install but meaningful enough to know.


Data analysis tips for practical use

We will explain using a practice table similar to the user data that you will frequently encounter in practice. We will introduce data analysis tips for marketing, such as Google Analytics’ session, customer satisfaction measurement method (NPS), and how to check data quality.

SQL problem solving with 5 real-life examples

We have included 5 data analysis cases that are frequently experienced when operating a service. For each case, we will examine the table schema and practice SQL step by step. We will cover join strategies that can be applied without difficulty to any database, group rankings, and aggregate functions such as partion by and group by.


How to use artificial intelligence for data analysis

In the bonus section, we will walk you through the process of presenting SQL problem texts to ChatGPT, Claude, and Gemini and receiving and verifying the results. We hope you will gain insight into how to improve the efficiency of data analysis with AI.
(This section will continue to be updated with additional classes.)


Recommended for
these people

Who is this course right for?

  • Data Analyst, Data Engineer, Data Scientist

  • Anyone who needs to do data analysis, regardless of their job title or field.

Need to know before starting?

  • Experience using SQL SELECT

Hello
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905

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4.9

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Courses

컴퓨터 공학 석사 후 삼성전자에서 시작된 커리어가 친구덕에 실리콘밸리로 이어져 지난 29년간 13개의 다양한 스테이지의 회사를 다녔습니다 (창업, 대기업들, 다수의 스타트업들).

  • 야후: 엔지니어링 디렉터로 검색엔진 개발.

  • 유데미. 데이터팀을 처음 만들어 30명까지 성장. 2021년 10월에 나스닥 상장

  • 삼성전자

  • ...

중간에 11개월 쉬어보기도 했고 본의 아니게 엔젤투자자(Chartmetric, Goodtime.io, Select Star, EO, 비지니스 캔버스, ...), 어드바이저(몰로코, 블라인드, 월급쟁이부자들, ...), 컨설팅(SK텔레콤, 현대카드, 이마트 등등) 등의 역할을 하면서 나만의 브랜드를 만들었습니다. 실패를 실패가 아닌 교훈으로 보는 긍정의 힘과 꾸준함이라는 복리의 힘을 믿습니다.

https://www.linkedin.com/in/keeyonghan/

유투브 채널

월급쟁이부자들 강의

Curriculum

All

38 lectures ∙ (7hr 6min)

Published: 
Last updated: 

Reviews

All

3 reviews

5.0

3 reviews

  • 흑흑님의 프로필 이미지
    흑흑

    Reviews 5

    Average Rating 4.2

    5

    32% enrolled

    • 한기용
      Instructor

      감사합니다. 혹시라도 궁금한 부분 생기면 주저말고 질문 부탁드리겠습니다!

  • 윤향기님의 프로필 이미지
    윤향기

    Reviews 3

    Average Rating 5.0

    5

    100% enrolled

    데이터 관련 공부를 하신다면 이 강의를 0순위로 설정하셔서 공부하시면 좋을 것 같습니다...!! SQL을 왜 배우는지, 각각의 문법의 역할이 무엇을 하는지, 모를 때 어떻게 해야할 지 등 입문 혹은 초급 입장에서 가려운 부분을 잘 긁어주시는 좋은 강의 입니다!!

    • 한기용
      Instructor

      감사합니다! 혹시라도 궁금한 부분 생기면 질문 부탁드리겠습니다. 그리고 3주전에 Airflow 강의도 하나 올렸습니다. 2주후에 Spark 강의도 하나 올릴 예정이고 검색엔진과 추천엔진과 AB 테스트에 관한 강의들을 계속 해서 올릴 예정입니다. 계속된 관심 부탁드리겠습니다.

  • 정병주님의 프로필 이미지
    정병주

    Reviews 81

    Average Rating 5.0

    5

    100% enrolled

    Limited time deal

    $53,620.00

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