8 weeks · 40 days · Developer
| Stage | Questions | Duration | Format | Cost |
|---|---|---|---|---|
| 필기 | 50문항 (1과목 10 · 2과목 40) | 90min | 객관식, 문항당 2점 | 50,000원 |
You answer 50 multiple-choice questions in 90 minutes. Subject 1, Understanding Data Modeling, has 10 questions (20 points), and Subject 2, SQL Fundamentals and Application, has 40 questions (80 points), at 2 points per question.
A total score of 60 or higher passes. However, scoring below 40% in any subject is an automatic fail, so you must score above 8 of 20 points in Subject 1 and above 32 of 80 points in Subject 2.
No. Anyone can take the exam.
It is held regularly four times a year. The exam fee is KRW 50,000, and you can check the registration period for each session on the registration page of the Korea Data Agency's data certification website.
Oracle syntax is the baseline, and some questions ask about differences from SQL Server (such as TOP and the + string concatenation operator). That is why the example results in these notes were verified by running them on a real Oracle database.