SQLmate - SQLD 자격증 합격 도우미

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About this app

SQLD Learning That Never Forgets — Automatic D-N Countdown to the Exam.

The FSRS (Free Spaced Repetition Scheduler) algorithm schedules a review just before you forget.

1,019 questions based on KDATA's official exam standards + Weakness Heatmap.

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What Makes It Different from Other SQLD Apps?

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▎ FSRS (Free Spaced Repetition Scheduler)

Automatically schedules a review just before you forget.

Missed questions are reviewed more frequently, while familiar questions are reviewed less frequently.

A proven algorithm used by Anki and SuperMemo.

▎ Prioritization Based on Question Frequency

Calculates question frequency by chapter based on analysis of the last 12 exams. Automatic sorting by frequently appearing chapters.

▎ Weakness Heatmap

Visualizes accuracy rates by color for 30+ detailed chapters.

Enabling focused training on specific weaknesses.

▎ 50-Question, 90-Minute Practice Mock Exam

Identical format, time limit, and passing criteria to the actual exam.

Pass simulation.

▎ Automatic Incorrect Answer Collection + Cause Classification

Automatically saves incorrect answers. Includes trap types, SQL syntax, out-of-range errors, etc.

Grouped learning by cause.

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Recommended for:

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· Those challenging for the next certification after passing the IT Professional Certification Exam (IT Professional Certification Exam)

· Non-computer science majors preparing for software development jobs (to strengthen their portfolios)

· Aspiring junior developers or data analysts

· Those needing a short-term preparation strategy 2-4 weeks before the exam

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Key Features

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· Based on KDATA's official exam standards 1,019 Questions

· Learning Modes by Unit and Difficulty

· FSRS Interval Repetitive Review Queue

· 50-Question 90-Minute Mock Exam (Failure Simulation)

· Automatic Incorrect Answer Note Collection + Retake

· Frequency-Based Weakness Heatmap

· Dark Mode Support

· iOS·Android Sync

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Privacy Policy: https://sqlmate.daylab.dev/privacy

Terms of Use: https://sqlmate.daylab.dev/terms

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Disclaimer

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SQLmate is a study material reconstructed in-house based on the official SQLD guide and examination standards of the Korea Data Industry Promotion Agency (KDATA), and is not officially affiliated with KDATA.
Updated on
May 20, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
Location, App activity and 2 others
No data collected
Learn more about how developers declare collection
Data is encrypted in transit
Data can’t be deleted

What’s new

이번 업데이트는 한 분의 오류 제보에서 시작됐어요.

엔터티 특징 문항의 표현이 어색하다는 신고를 받고 확인해보니 정말 그랬습니다. 그래서 그 한 문항을 고치는 김에 1,000여 개 문항 전체의 해설과 보기 표현을 다시 검토했어요.

정답 위치는 그대로라 풀이 기록에는 영향이 없고, 곳곳의 해설이 더 정확하고 명료해졌습니다.

귀한 시간을 내어 알려주신 분께 진심으로 감사드립니다.
이상한 부분이 보이면 언제든 신고 폼으로 보내주세요.