A collection of 1,072 PhD-level SQL and database question-and-answer records. Each record pairs a question with a worked solution and a final answer.
Available on Request · Sample Available
SQL Coding QSA
PhD-level SQL: advanced queries, window functions, and optimization.
Updated:June 22, 2026
Volume
0
Volume
Scalable Volume
Coverage
Grad, PhD, SQL, Coding, Data Science
70.3%Codex GPT-5.4 · Pass@5
Targets
BIRD-Bench, Spider
Modality & Delivery
Text→Text
Formats
Excel (.xlsx)
What You Receive
Coverage
Topics include schema design and normalization, advanced queries using subqueries and common table expressions, indexing and query optimization, aggregation, stored procedures and triggers, and window functions.
Package Structure
Differentiators
Record Schema
| A | B | C | |
|---|---|---|---|
| 1 | answer | question | solution |
| 2 | The concise final answer associated with the question. | The question or task presented in the dataset record. | The worked solution or supporting reasoning for the question. |
Results
| Model | Metric | Result |
|---|---|---|
| Codex GPT-5.4 | Pass@5 | |
| Grok 4.3 | Pass@1 | — |
Methodology & Quality
Methodology
Questions are expert-authored, then split across an SME pool for complexity validation before benchmarking.
SME involvement
Domain-expert curated with up to L2 review
Stressors
Design criteria
Build assumptions
Quality approach
Known limitations
Customization & Scalability
Custom sets available. Additional volume in progress
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