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Data Science

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Certificate (Data Science)

[SQLD Past Exams are the Answer!] 58th Exam (25.8.23) High-Difficulty Session Analysis & Reconstruction - All Questions by Subject and Chapter

"SQLD is an exam where past questions are not released to the public." Preparing for the upcoming 60th exam (26.3.7)— Practical study material featuring 50 questions per subject and chapter, vividly reconstructed based on the actual 58th exam, which was rated as having the highest difficulty ever!

6 learners are taking this course

Level Basic

Course period Unlimited

  • leejm99987374
SQL
SQL
Oracle
Oracle
pivot
pivot
subquery
subquery
dcl
dcl
SQL
SQL
Oracle
Oracle
pivot
pivot
subquery
subquery
dcl
dcl

What you will gain after the course

  • Perfecting your exam-day intuition in preparation for the upcoming test

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

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

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

The SQLD exam does not use a question bank system, and past exam questions are not released to the public.Kỳ thi SQLD không theo hình thức ngân hàng câu hỏi và các đề thi trước đó cũng không được công bố.

That is why we personally reconstructed the questions immediately after the exam to vividly recreate them.

It is structured to receive reactions like, "It contains only the real exam points!".


👉 At the actual level of difficultyGiữ nguyên độ khó thực tế

👉 Perfectly restored exam pointsKhôi phục hoàn hảo các trọng tâm đề thi

👉 Maximize practical skills with problem-oriented solutions


50 past exam questions per session, organized by subject and chapter

Delivered vividly with proven expertise and teaching skills.

SQLD, no more preparing with anxiety!
Your success is now one step closer. đang đến gần hơn một bước ngay bây giờ.


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

What you will learn


📌 Learn the core concepts through past exam questions by dividing the SQLD subjects into sections!học các khái niệm cốt lõi thông qua các câu hỏi đã từng xuất hiện trong kỳ thi!


Subject I: Understanding Data Modeling

📍 10 questions in total

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 Advanced Application

Chapter 3 Administrative Syntax

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

Section (1) Course Introduction & Textbook Download Center

  • Course Introduction and

    Exam Trends, Sample Question Walkthroughs, and Past Exam PDFsXu hướng ra đề và giải đề thi mẫu, PDF đề thi đã xuất bản


thoughtful 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

  • Eliminate data redundancy through Normalization


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

Section (3) Subject II SQL Fundamentals and Applications

  • SELECT Basic Queries and Condition Handling

  • Connecting data between tables through JOIN

  • Aggregation and analysis with GROUP BY / HAVING

  • Utilizing Subqueries

  • thoughtful 1672979061 Usage and differences of set operators (UNION, INTERSECT, etc.)

  • Processing data with Aggregate / Group / Window functions for data analysis

  • Processing hierarchical data with hierarchical queries

  • Utilizing Regular Expressions

  • Row-column transformation with PIVOT / UNPIVOT

  • 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 learning materials provided: PDF

Recommended for
these people

Who is this course right for?

  • Those who want to know exactly what will be on the test.

  • Those who want to experience the exact feel of the actual exam

  • Those who want to grasp the overall flow at once based on past exam questions.

Need to know before starting?

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

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

Hello
This is

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

I built my practical database experience while in charge of MRP system development at Hanwha Electronics & Telecommunications, and since then

He has served as a professional SQL instructor at Oracle Korea, Informix Korea, and Zenesis Technology.

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

Additionally, I have been consistently conducting special lectures for SQLD certification preparation 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 most clear and easy-to-understand way!!!

Based on my experience in SQL education, my strength lies in delivering understanding-oriented lectures rooted in practical expertise. I will provide the clearest and most easy-to-understand explanations for previous SQLD exam questions!!!

Curriculum

All

8 lectures ∙ (2hr 34min)

Course Materials:

Lecture resources
Published: 
Last updated: 

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