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Data Science

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Certificate (Data Science)

[SQLD Past Exams are the Answer!] Check the latest past exam questions for the 60th session (2026.3.7), the 1st session of 2026! - All questions by subject and chapter

"SQLD is an exam where past questions are not officially released." In preparation for the upcoming 61st exam (May 31, 2026)— Practical materials featuring 50 questions per subject and chapter, vividly reconstructed by directly recalling the latest 60th exam!

2 learners are taking this course

Level Basic

Course period Unlimited

SQL
SQL
Oracle
Oracle
subquery
subquery
database-modeling
database-modeling
sql-join
sql-join
SQL
SQL
Oracle
Oracle
subquery
subquery
database-modeling
database-modeling
sql-join
sql-join

What you will gain after the course

  • Perfecting your practical skills for the upcoming exam

  • Difficulty levels and explanations for all questions by subject and chapter.

  • Master Data Modeling + Core SQL Concepts through Past Exam Questions

  • Practice for the real exam with a 50-question past paper PDF for 90 minutes.

The SQLD exam does not use a question bank system, and past exam questions are not made public.

Therefore, we have vividly reconstructed the content by directly recalling it immediately after the exam.

'It feels like taking the actual exam!' is the kind of reaction this structure aims to elicit.

If you find any missing questions, please let us know in the course review!


👉 Exactly the same as the actual difficulty level

👉 Perfect restoration of exam points

👉 Maximize practical skills with problem-centered solutions


50 previous exam questions per subject and chapter for each session

Proven skills and teaching ability deliver the content vividly.

SQLD, don't be anxious about your preparation anymore!
Your passing is now one step closer.


※ This course does not replicate actual exam questions
and provides independently reconstructed questions based on the actual exam.

What you will learn


📌 Learn the SQLD subjects by dividing them into sections and mastering core concepts through previous exam questions!


✅ Subject I: Understanding Data Modeling

📍 Total 10 questions

Chapter 1 Understanding Data Modeling

Chapter 2 Data Model and SQL

✅ Subject II SQL Fundamentals and Applications

📍 Total 40 questions

Chapter 1 SQL Fundamentals

Chapter 2 SQL Application

Chapter 3 Management Syntax

📍 Total 50 questions · All multiple-choice · Exam time 90 minutes


Section (1) Lecture Introduction & Textbook Download Center

  • Course Introduction and 

    Exam trends, sample past exam question walkthroughs, and past exam question PDFs

Section (2) Subject I: Understanding Data Modeling

  • Understanding Conceptual/Logical/Physical Modeling

  • Identifying model components such as entities, attributes, and relationships

  • Identifier (Primary Key) Design Principles

  • Normalization to eliminate data redundancy


  • Strengthening ERD interpretation and problem-solving skills tailored to the actual exam difficulty level

Section (3) Subject II SQL Fundamentals and Applications

  • SELECT basic retrieval and condition processing

  • Connecting data between tables through JOIN

  • GROUP BY / HAVING for aggregation and analysis

  • Subquery Utilization

  • Set operators (UNION, INTERSECT, etc.) usage and differences

  • Aggregating / Grouping / Window Functions for Data Analysis for data processing

  • Processing hierarchical data with hierarchical queries

  • Regular Expression utilization

  • PIVOT / UNPIVOT for row-column transformation

  • DDL (Table Structure Definition), DML (Data Manipulation)

  • TCL (Transaction Control), DCL (Data Control)

  • Strengthening SQL interpretation and problem-solving skills tailored to the actual exam difficulty level

Notes before taking the course

Learning Materials

  • Format of provided study materials: PDF

Recommended for
these people

Who is this course right for?

  • Those who want to know exactly what the actual exam points are.

  • Those who want to experience the actual exam feel exactly as it is

  • Those who want to grasp the entire flow at once based on previous exam questions.

Need to know before starting?

  • Good to know! Basic DB terminology such as tables, PK, and FK, and experience with simple SQL like SELECT statements.

  • Ready to go! Completed advanced learning from data modeling to various advanced SQL functions.

Hello
This is leejm99987374

A SQL and database expert instructor covering both practical experience and education!

After graduating from the Department of Computer Science at Soongsil University, he built his practical database experience by developing MRP systems at Hanwha Electronics & Information Technology. Later, he served as a professional SQL instructor at Oracle Korea, Informix Korea, and Genesis Technology.

Currently, he lectures on Database and SQL Programming (SQLD) at Sejong Cyber University, Yeonsung University, and Seoul Hoseo Occupational Training College.

In addition, I have been consistently conducting special lectures for SQLD certification at various universities and educational institutions, including Myongji University, Inha University, Seoul National University, Gachon University, Korea University of Technology and Education, Daegu University, and Sungshin Women's University.

Based on a total of 28 years of experience in database and SQL education,

With a strength in understanding-oriented lectures derived from practical experience,

I will deliver the SQLD past exam questions in the clearest and most easy-to-understand way possible!!!

 

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Curriculum

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8 lectures ∙ (1hr 56min)

Course Materials:

Lecture resources
Published: 
Last updated: 

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