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Certificate (Data Science)

[2026] SQLD Part2 - Pass on Your First Try Even as a Non-Major

SQLD, where do I even start? A course for those who feel completely lost - you'll meet a transformed version of yourself after completing it. SQLD All-in-One Pass!

(4.7) 6 reviews

46 learners

Level Beginner

Course period 12 months

  • algolearn
sql
sql
SQLD
SQLD
자격증
자격증
데이터베이스
데이터베이스
시험
시험
SQL
SQL
Big Data
Big Data
Oracle
Oracle
DBMS/RDBMS
DBMS/RDBMS
sql
sql
SQLD
SQLD
자격증
자격증
데이터베이스
데이터베이스
시험
시험
SQL
SQL
Big Data
Big Data
Oracle
Oracle
DBMS/RDBMS
DBMS/RDBMS

Reviews from Early Learners

Reviews from Early Learners

4.7

5.0

desunny

32% enrolled

There were many difficult concepts, but it was definitely good to practice them. I was able to better understand things like pivot, unpivot, window functions, and grouping functions through the practice. Thank you.

5.0

흔들거북이

100% enrolled

I enjoyed it very much. I especially appreciate the effort that went into the materials you provided. After a preliminary scoring of the exam, I expect to pass without any issues, as I received a high score. Thank you.

5.0

Betterlife

29% enrolled

It's so great that I can follow along directly and understand it easily!!

What you will gain after the course

  • SQL Basics and Practical Query Structure and Practice

  • SQL Basics - SELECT, Functions, WHERE, GROUP BY, HAVING, ORDER BY, Joins and Standard Joins

  • SQL Utilization - Subqueries, Set Operators, Group and Window Functions, Hierarchical Queries, Pivot and Unpivot, Regular Expressions

  • Database Management Statements - DDL, DML, DCL, TCL

Slide 960 Px-2

Perfect fit for the 2026 revised exam!

SQLD Part2 that even beginners and non-majors can pass in one try!

SQLD - Part2. SQL Fundamentals and Applications

This course is perfectly tailored for the revised 2026 exam. It provides an easy and fast path to obtaining the SQLD certification.


The SQLD certification is a nationally recognized credential that validates professional knowledge in deeply understanding the core principles of SQL and skillfully applying them in practical work. This course systematically covers essential core theory for passing and actual exam problem-solving and practice, designed so that even beginners can learn effectively.

✅Why You Should Choose This Course:

  • Free SQLD Study Materials Provided: Free exam preparation materials with comprehensive explanations and practice problems (Oracle RDBMS-based)

  • Harmony of Theory and Practice: Practical skill enhancement combining SQL theory + query writing practice (Oracle + DBeaver & MS SQL)

  • Practice Problems and Mock Exams Provided: Perfect preparation for passing the exam!

The SQLD certification is your first step toward becoming a data & big data professional. Mastering SQL will enhance not only your data analysis skills but also your data engineering capabilities.


Take on the challenge right now! 🚀

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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 plenty of problems to pass.

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Clicking on the image will also navigate the screen. Verify your review and receive a free mobile app coupon.

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

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All-in-One

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Part1. Data Modeling

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Nolaengi Practice Problem Solving

This course has these features!

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Textbook with comprehensive explanations

We provide textbooks with comprehensive explanations, not summarized PowerPoints.

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SQL Query Writing Practice

ERD appears in SQLD! It's directly connected to understanding SQL. You can enhance your understanding through modeling practice.

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Practice problems and past exam solutions provided by topic and chapter

Certification exams are all about practice problems🚀 Review what you've learned by solving the problems included in the textbook.

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Organize at a glance, remember easily! Mind map provided

Neatly organize what you've learned so far and upgrade your skills to the next level!

  • Core lectures that even SQL beginners can fully understand and learn, with textbooks that include detailed explanations

  • SQL practice environment setup guide and hands-on practice sessions

  • Provides theory questions by topic and chapter to help you review what you've learned while solving problems

  • The shortcut to passing! Provides lectures and materials on solving actual past exam questions

  • Providing mind maps that allow you to organize at a glance and remember easily

Learning Content

  • Learn SQL fundamentals and practice writing queries.

  • Learn advanced SQL and management statements and write queries directly.

  • Solve past exam questions and practice tests, and summarize key content.

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Section (1) SQL Basics

SQL fundamentals and query writing practice

  • Relational Database Fundamentals

  • Syntax such as SELECT, WHERE, GROUP BY, JOIN, etc.

Section (2) SQL Application

Advanced SQL query theory and writing practice

  • Subqueries, Sets, Group and Window Functions, TOP-N

  • Hierarchical queries, Pivot & UnPivot, Regular expressions

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Section (3) Management Statements

RDBMS Management Statement Theory and Practice

  • DML, TCL, DDL, DCL

  • DML and Transactions

  • Database object permission management

Section (4) Past Exam Questions and Key Summary

Organize your learning content with past exam questions and mind maps.

  • Key Past Exam Questions and Solutions

  • Mind Map Summary

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Notes Before Taking the Course

  • The SQL practice environment uses Oracle.

  • The copyright of the learning materials belongs to DataCodeLab. Unauthorized distribution is prohibited.

Practice Environment

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

  • Tools Used: Oracle 12C & DBeaver, LiveSQL

  • PC specifications: No restrictions

Learning Materials

  • SQLD Part2 proprietary textbook (pdf), practice data & scripts, past exam solutions (pdf), mind map (html) provided

  • Self-developed textbook: Consists of theory explanations, topic-specific review questions, chapter review questions, and practice exam questions

Prerequisites and Precautions

  • SQL beginners can learn

  • After completing the lecture, proceed with problems and practice, and repeatedly review the lecture and textbook content


  • SQLD Part1 and Nolaengi practice problem lectures are provided separately

  • The copyright of the lecture materials belongs to DataCodeLab. Unauthorized distribution is prohibited.

Recommended for
these people

Who is this course right for?

  • Those who want to obtain SQLD certification in one go and improve their development capabilities

  • Someone who wants to pursue a career as a data scientist with an SQLD certification

  • For those who need both SQLD books and lectures

Hello
This is

616

Learners

74

Reviews

55

Answers

4.7

Rating

6

Courses

공부하고 전파하는 것을 좋아합니다. 빅데이터와 인공지능에 오랜 경력이 있습니다.

  • 20년 현업 데이터분석가 경력, 5년 데이터 분석 강의!

  • 빅데이터 및 인공지능 분야 기업 및 공공기관 자문 및 출강

  • 빅데이터 분석기사 한권완성 필기, 실기 저자

  • 인공지능 분야 스타트업 대표

Curriculum

All

41 lectures ∙ (8hr 37min)

Course Materials:

Lecture resources
Published: 
Last updated: 

Reviews

All

6 reviews

4.7

6 reviews

  • tytyha31222780님의 프로필 이미지
    tytyha31222780

    Reviews 1

    ∙

    Average Rating 4.0

    4

    61% enrolled

    • younghe422863700님의 프로필 이미지
      younghe422863700

      Reviews 2

      ∙

      Average Rating 4.5

      4

      32% enrolled

      • algolearn
        Instructor

        Hello. Thank you for leaving a rating. The exam is coming up soon. I hope you get good results. Thank you.

    • grooveturtle290048님의 프로필 이미지
      grooveturtle290048

      Reviews 10

      ∙

      Average Rating 5.0

      5

      100% enrolled

      I enjoyed it very much. I especially appreciate the effort that went into the materials you provided. After a preliminary scoring of the exam, I expect to pass without any issues, as I received a high score. Thank you.

      • algolearn
        Instructor

        Wow, congratulations. I'm glad to hear you'll likely pass without any issues. Thank you for leaving a review of the lecture as well. I wish you all the best. Thank you.

    • archblue279783님의 프로필 이미지
      archblue279783

      Reviews 3

      ∙

      Average Rating 5.0

      5

      29% enrolled

      It's so great that I can follow along directly and understand it easily!!

      • algolearn
        Instructor

        Okay, I'm glad you think it's good to follow along. Thank you :)

    • desunny6762님의 프로필 이미지
      desunny6762

      Reviews 2

      ∙

      Average Rating 5.0

      5

      32% enrolled

      There were many difficult concepts, but it was definitely good to practice them. I was able to better understand things like pivot, unpivot, window functions, and grouping functions through the practice. Thank you.

      • algolearn
        Instructor

        Okay. Thank you for taking the class. :)

    $37.40

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