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Certificate (Data Science)

[2026] Yellow Book 176 Practice Problems for Those Who Find SQLD Questions Difficult

SQLD Yellow Book 176 Problem-Solving Course for those who studied but can't solve problems. After completion, you'll go beyond passing to become an expert. SQLD All-in-One Pass!

(4.4) 21 reviews

202 learners

Level Basic

Course period Unlimited

SQL
SQL
Big Data
Big Data
Oracle
Oracle
MSSQL
MSSQL
SQLD
SQLD
SQL
SQL
Big Data
Big Data
Oracle
Oracle
MSSQL
MSSQL
SQLD
SQLD

Reviews from Early Learners

4.4

5.0

MK24

100% enrolled

Difficulty: Medium-High Recommended for: Those who only want to practice SQLD problems! Great for studying for the SQLD exam! Even after going through concept lectures separately 3 times, I felt stuck on problem-solving, so I'm taking this course to learn how to apply concepts and solve problems. Especially since other problem-solving courses sometimes lack SQL practice, this course having it made it easier to understand. Even when trying to solve the "Yellow Book" problems repeatedly, they are quite difficult, but I'm continuously practicing them while listening to the lecture. I really want to pass this time! + 2025.05.31 Exam Review: Problems similar to those in the "Yellow Book" problem set were included in the exam. So, if you're short on time, I recommend at least solving the problems for Subject 2 before going. Subject 2 appears a lot.

5.0

cwkhg1

94% enrolled

I am developing a sense of practical application by listening to the lectures and watching the "Noraengi" (Yellow Book) problem-solving videos. As a non-major, I still have a long way to go, but I plan to take the exam by repeatedly reviewing the problem-solving sessions. The lecture materials provided are very helpful; in particular, running the practice queries myself has helped my memory, and being able to change various elements to deepen my understanding has been great.

5.0

whtlsgod

30% enrolled

The detailed explanations are very helpful!!

What you will gain after the course

  • Final SQLD Exam Review with Practice Problem Solving

  • Oracle and SQL Server Query Practice

  • Complete SQL Practice from Complex to Simple Queries

SQLD Yellow title

For those who studied hard but can't solve the problems

This is a lecture on solving Noraengi practice problems.

SQLD - Noraengi Practice Problem Solving

For SQL, practice problem solving is especially important.

You studied both SQL theory and practice diligently, but when you actually look at SQLD problems, your mind goes blank.

This is the experience of almost 99% of test takers.

It's not easy to solve problems with lots of black SQL queries on a white page.

Moreover, it's problematic that they don't even release past exam questions.

That's why I developed a lecture on solving practical problems that everyone must work through, known as the Noraengi practice problem solving lecture. The Noraengi problems are from a book published by the 'Korea Data Agency', which is the exam administration organization. These are the problems closest to the actual exam.


✅Why you should choose this course:

  • Complete explanation of all 176 Noraengi problems: Provided with corrections to errors in existing Noraengi explanations

  • Practice scripts provided: Oracle and MSSQL Server practice scripts and data provided

  • 3 Full-Length Practice Tests Provided: End with the yellow book? No! 3 practice tests provided for you to solve on your own

✅Important Notice: Please read the following carefully before enrolling in the course. 🙂

  • Recommended for intermediate level and above, those who have completed their theory studies.

  • Beginners, please study the theory first before taking this course. The content may be more difficult than you think.

  • The problem-solving lecture focuses on solving problems. You will need to study and look up theoretical areas where you lack understanding on your own.

The SQLD certification is your first step towards becoming a data & big data professional.
Take on the challenge now! 🚀

Algo App Banner- 복사본 (1)

Click the image! You can download the app.

Scan the QR code and solve problems on the mobile app.

Verify your course review and receive a 100% free coupon.

Try our unrestricted mobile environment. Solve enough problems to pass.

Algo App Banner- 복사본 (4)

The screen moves even when you click the image. Verify your review and receive a free mobile app coupon.

Your choice leads to success! Choose SQLD All-in-One Pass lectures by part.

Slide 960 Px

All-in-One

Slide 960 Px-1

Part1. Data Modeling

Slide 960 Px-2

Part2. SQL Basics and Application

This course has these features!

그림1

SQLD 176 Problem Solutions

Individual lectures provided for all 176 Noraengi questions!

노랭이 특징

Detailed explanations provided for comprehensive exam review

From problem explanations to core theory review, totally possible!

Slide 960 Px (1)

SQL Practice Scripts Provided

For ORACLE + MS SQL Server practice
Environment setup guide + scripts + data provided

Slide 960 Px (2)

SQLD 3 Full Practice Tests Provided

The shortcut to passing in one shot!
150 practice exam questions most similar to the actual test, 3 sets provided!

Learning Content

  • Certification Exam Practice Problem Solving + Final Review of Learning Content + Practice Guide Provided

  • SQL Practice (on Oracle + MS SQL Server) to enhance practical problem-solving skills and work competency

Slide 960 Px (3)

Section (1) Understanding Data Modeling

You can learn key concepts by solving practical data modeling problems.

Detailed explanations + perfect conceptual understanding - that's the shortcut to passing.

Section (2) Data Models and SQL

We'll show you how to easily solve complex and difficult modeling problems. There are cases where it's difficult to solve problems using only conventional methods.

I'll show you how to solve problems effectively - not through shortcuts, but through proper methods.


Slide 960 Px (4)
Slide 960 Px (5)

Section (3) SQL Basics

To become a skilled SQL expert, modeling is essential.

I'll explain SQL while drawing ERDs through data modeling.


Section (4) SQL Application

Hands-on practice! We provide practice guides, scripts, and data for perfect understanding.

The practice environment uses Oracle + MS SQL Server. Oracle is used as the primary tool, with MS SQL Server as a supplementary tool.

Slide 960 Px (6)
Slide 960 Px (7)

Section (5) Management Statements

We'll solve database and DBMS management syntax problems using the four types of SQL: DDL, DML, TCL, and DCL. We'll organize the learning content with well-prepared solution guides.


Notes Before Taking the Course

  • The yellow practice test booklet (Korea Data Agency) is not provided due to potential intellectual property infringement.

  • The SQL practice environment is built on Docker Container. You can easily do it by following the lecture.

Practice Environment

  • Operating System and Version (OS): Windows, Linux

  • Tools used: Oracle, MS SQL Server

  • PC Specifications: 30GB or more of free disk space required

Learning Materials

  • Nolaengi commentary guide (pdf), practice scripts (SQL files), SQL Server vs Oracle comparison (pdf)

  • 5 sets of practice exam questions (pdf)

Prerequisites and Important Notes

  • Those who have studied SQLD Part1, Part2 or have equivalent skills

Recommended for
these people

Who is this course right for?

  • People who have studied but find it difficult to solve problems

  • For those who want to do the final review with practical problems

  • For those who want to improve their query understanding and develop practical skills

Need to know before starting?

  • SQL Basics

  • Someone who has studied SQLD Part1, Part2

Hello
This is algolearn

923

Learners

106

Reviews

91

Answers

4.7

Rating

6

Courses

I love studying and sharing knowledge. I have extensive experience in big data and artificial intelligence.

  • 20 years of experience as a data analyst and 5 years of teaching data analysis!

  • Consulting and lecturing for corporations and public institutions in the fields of Big Data and AI

  • Author of "Big Data Analysis Engineer All-in-One" (Written and Practical Exams)

  • CEO of an AI startup

More

Curriculum

All

190 lectures ∙ (12hr 25min)

Course Materials:

Lecture resources
Published: 
Last updated: 

Reviews

All

21 reviews

4.4

21 reviews

  • muttul589114님의 프로필 이미지
    muttul589114

    Reviews 68

    ∙

    Average Rating 4.8

    5

    60% enrolled

    Thank you for the precious lecture.

    • algolearn
      Instructor

      Thank you for leaving such a good review. Have happy days ahead. I'll be cheering you on.

  • jjangdaye2275님의 프로필 이미지
    jjangdaye2275

    Reviews 1

    ∙

    Average Rating 5.0

    5

    30% enrolled

    Thank you for the detailed explanation!

    • algolearn
      Instructor

      Hello. Thank you for leaving a good review. Not much time left for the exam. :) I'm cheering for you. :) Have a happy day.

  • jaken님의 프로필 이미지
    jaken

    Reviews 4

    ∙

    Average Rating 5.0

    Edited

    5

    9% enrolled

    The lectures are concise, and being able to solve problems through the app is great. I think it's a very cost-effective course.

    • algolearn
      Instructor

      Thank you for the great review and rating. I'll be rooting for you.

  • cwkhg19350님의 프로필 이미지
    cwkhg19350

    Reviews 1

    ∙

    Average Rating 5.0

    5

    94% enrolled

    I am developing a sense of practical application by listening to the lectures and watching the "Noraengi" (Yellow Book) problem-solving videos. As a non-major, I still have a long way to go, but I plan to take the exam by repeatedly reviewing the problem-solving sessions. The lecture materials provided are very helpful; in particular, running the practice queries myself has helped my memory, and being able to change various elements to deepen my understanding has been great.

    • algolearn
      Instructor

      Hello. I'm glad the lectures were helpful. The exam is just around the corner now. You've completed over 90% of the course. Since you've worked so hard, I expect you will pass. :) I'll be rooting for you. Thank you.

  • gamedragon148388님의 프로필 이미지
    gamedragon148388

    Reviews 1

    ∙

    Average Rating 5.0

    5

    96% enrolled

    This is such a great lecture, highly recommend before taking exams!

    • algolearn
      Instructor

      Thank you for the kind review. I hope it helps. :)

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