Is it a national qualification?

It is a state-recognized private one.

No renewal is currently required; check official notices.

SQLD

📚 Education By CampusDown Wiki Editorial Team Last updated October 26, 2026

SQLD (SQL Developer) is a state-recognized private certification in Korea that tests data modeling and SQL skills, administered by the Korea Data Agency.

Contents

1. Format
2. Preparation and use
3. FAQ
4. References

Format

Subject 1 covers data modeling and Subject 2 SQL basics and application. You need 60 out of 100 with no subject below 40% of its points. SQLP is the harder expert level.

Preparation and use

Study relational concepts, core SQL, then window functions, practicing on a free database. It signals SQL basics for data and backend roles and is often paired with ADsP; as a private qualification, back it with projects.

FAQ

Is it a national qualification?: It is a state-recognized private one.
Does it expire?: No renewal is currently required; check official notices.

Sources reviewed: 2026-10-26

References

데이터자격검정(한국데이터산업진흥원). https://www.dataq.or.kr
한국데이터산업진흥원 SQL 자격검정 안내. https://www.kdata.or.kr
자격기본법(국가공인 민간자격), 국가법령정보센터. https://www.law.go.kr

Reports and materials that use this theory (Korean)

There are no materials dedicated to this theory yet, but you can search related reports in the CampusDown library (Korean).

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This article was last updated on October 26, 2026. It is based on widely recognized original works and textbooks; when citing it in a paper, please check the original sources listed in the references.