docs(10_Wiki): 위키 구조 정리 — 언어 튜토리얼 카테고리 폴더 제거 + 신규 자산 동기화

Topic_CSS/Topic_HTML/Topic_JavaScript/Topic_Prompt/Topic_Comfyui 등 기존 카테고리 폴더를 정리하고, Topic_Graphic/Dev 등 신규 산출물과 Topics 내부 세션/메모리 기록을 동기화.
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+---
+id: sql-tutorial-index
+title: "SQL Tutorial"
+category: "Database"
+status: "draft"
+verification_status: "conceptual"
+canonical_id: ""
+aliases: ["SQL Tutorial", "SQL MOC", "Topic_SQL index", "SQL 목차"]
+duplicate_of: ""
+source_trust_level: "B"
+confidence_score: 0.90
+created_at: 2026-07-04
+updated_at: 2026-07-04
+review_reason: ""
+merge_history: []
+tags: ["sql", "database", "w3schools", "moc", "index"]
+raw_sources: ["https://www.w3schools.com/sql/"]
+applied_in: []
+github_commit: ""
+---
+
+# [[SQL Tutorial]]
+
+## 🎯 한 줄 통찰 (One-line insight)
+Map of Content (MOC) for the W3Schools SQL Tutorial — the root that links every SQL knowledge page in this topic folder. [S1]
+
+## 🧠 핵심 개념 (Core concepts)
+- This folder (`Topic_SQL`) wikifies the **W3Schools SQL Tutorial** (left-sidebar tutorial menu), one knowledge page per document, in P-Reinforce v3.1 format — following the same convention as `Topic_HTML` / `Topic_CSS` / `Topic_JavaScript`. [S1]
+- Scope: **tutorial + "Learning by examples" pages only**. The large reference dumps (SQL Keywords Reference, MySQL/SQL Server/MS Access Functions — ~290 individual function-stub pages) and non-knowledge meta pages (Quiz, Exercises, Editor, Certificate, Bootcamp, Syllabus, Study Plan, Training, Server) are **excluded by design**. [S1]
+- **Progress:** **67 of 67 planned docs complete — SQL category done.**
+- Every page roots its Knowledge Graph back to this `[[SQL Tutorial]]` node.
+
+## 📖 세부 내용 (Details)
+
+### Basics
+- [[SQL Intro]] ✅
+- [[SQL Syntax]] ✅
+
+### Querying & Filtering
+- [[SQL Select]] ✅
+- [[SQL Select Distinct]] ✅
+- [[SQL Where]] ✅
+- [[SQL Order By]] ✅
+- [[SQL And]] ✅
+- [[SQL Or]] ✅
+- [[SQL Not]] ✅
+- [[SQL Like]] ✅
+- [[SQL Wildcards]] ✅
+- [[SQL In]] ✅
+- [[SQL Between]] ✅
+- [[SQL Aliases]] ✅
+
+### Joins & Set Operations
+- [[SQL Joins]] ✅
+- [[SQL Inner Join]] ✅
+- [[SQL Left Join]] ✅
+- [[SQL Right Join]] ✅
+- [[SQL Full Join]] ✅
+- [[SQL Self Join]] ✅
+- [[SQL Union]] ✅
+- [[SQL Union All]] ✅
+
+### Grouping & Aggregation
+- [[SQL Group By]] ✅
+- [[SQL Having]] ✅
+- [[SQL Aggregate Functions]] ✅
+- [[SQL Min]] ✅
+- [[SQL Max]] ✅
+- [[SQL Count]] ✅
+- [[SQL Sum]] ✅
+- [[SQL Avg]] ✅
+
+### Data Modification
+- [[SQL Insert Into]] ✅
+- [[SQL Null Values]] ✅
+- [[SQL Update]] ✅
+- [[SQL Delete]] ✅
+- [[SQL Select Top]] ✅
+- [[SQL Select Into]] ✅
+- [[SQL Insert Into Select]] ✅
+
+### Conditional & Logic
+- [[SQL Exists]] ✅
+- [[SQL Any]] ✅
+- [[SQL All]] ✅
+- [[SQL Case]] ✅
+- [[SQL Null Functions]] ✅
+
+### Procedures & Comments
+- [[SQL Stored Procedures]] ✅
+- [[SQL Comments]] ✅
+- [[SQL Operators]] ✅
+
+### Database & Table Management
+- [[SQL Create DB]] ✅
+- [[SQL Drop DB]] ✅
+- [[SQL Backup DB]] ✅
+- [[SQL Create Table]] ✅
+- [[SQL Drop Table]] ✅
+- [[SQL Alter Table]] ✅
+- [[SQL Constraints]] ✅
+- [[SQL Not Null]] ✅
+- [[SQL Unique]] ✅
+- [[SQL Primary Key]] ✅
+- [[SQL Foreign Key]] ✅
+- [[SQL Check]] ✅
+- [[SQL Default]] ✅
+- [[SQL Create Index]] ✅
+- [[SQL Auto Increment]] ✅
+- [[SQL Dates]] ✅
+- [[SQL Views]] ✅
+
+### Security
+- [[SQL Injection]] ✅
+- [[SQL Parameters]] ✅
+- [[SQL Prepared Statements]] ✅
+
+### Deployment & Reference
+- [[SQL Hosting]] ✅
+- [[SQL Data Types]] ✅
+
+## 🛠️ 적용 사례 (Applied in summary)
+67 knowledge documents generated, all grounded in the corresponding W3Schools pages via a Playwright-based extraction pipeline (adapted from the Datacollector_MAC project's `web_extract.mjs`, with added noise-stripping for sidebar/footer).
+
+## ✅ 검증 상태 및 신뢰도
+- **상태:** draft
+- **검증 단계:** conceptual
+- **출처 신뢰도:** B (W3Schools — widely used educational reference)
+- **신뢰 점수:** 0.90
+- **중복 검사 결과:** 신규 생성 (New discovery)
+
+## 🔗 지식 그래프 (Knowledge Graph)
+- **상위/루트:** [[10_Wiki]]
+- **관련 개념:** [[SQL Intro]], [[SQL Select]], [[SQL Create Table]], [[Topic_Programming]]
+- **참조 맥락:** HTML/CSS/JavaScript에 이어 W3Schools 지식화 시리즈의 다음 카테고리. 완료 후 Python/PHP/MySQL 등 나머지 카테고리가 동일한 규칙으로 이어진다.
+
+## 📚 출처 (Sources)
+- [S1] W3Schools — SQL Tutorial — https://www.w3schools.com/sql/
+
+## 📝 변경 이력 (Change history)
+- 2026-07-04: Created SQL Tutorial MOC and linked 5 pilot-batch pages (Astra wiki-curation, P-Reinforce v3.1 format).