docs(10_Wiki): Dev 폴더 누락분 반영 — Topic_Programming으로 통합

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  (Architecture/Conventions/Engineering_Intelligence 등)과 완전 중복이라 제거.
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  Failure_Library/Generalized_Principles/Language/Pattern_Catalog/Platform_Guides/
  Subsystems, 77개)는 이미 Topic_Programming/Topic_Programming에 더 최신 버전이
  존재해 중복 제거(고유 콘텐츠 1개는 예외 처리하여 이동 보존).
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  JavaScript/PHP/Python/SQL/W3CSS, 1201개)는 전부 Topic_Programming 하위로 이동.
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- Topic_Programming 최종 문서 수: 2784 → 3985.

10_Wiki/Topic_Programming/Topic_SQL/SQL_All.md

@@ -0,0 +1,81 @@
+---
+id: sql-all
+title: "SQL All"
+category: "Database"
+status: "draft"
+verification_status: "conceptual"
+canonical_id: ""
+aliases: ["SQL ALL Operator", "ALL operator"]
+duplicate_of: ""
+source_trust_level: "B"
+confidence_score: 0.88
+created_at: 2026-07-04
+updated_at: 2026-07-04
+review_reason: ""
+merge_history: []
+tags: ["sql", "database", "w3schools", "all", "subquery"]
+raw_sources: ["https://www.w3schools.com/sql/sql_all.asp"]
+applied_in: []
+github_commit: ""
+---
+
+# [[SQL All]]
+
+## 🎯 한 줄 통찰 (One-line insight)
+ALL compares a value against every value returned by a subquery, evaluating to TRUE only if EVERY comparison holds — the "every row must match" counterpart to ANY. [S1]
+
+## 🧠 핵심 개념 (Core concepts)
+- **ALL operator** — compares a value to every value returned by a subquery; TRUE only if every value in the result-set meets the condition. [S1]
+- **Typical usage** — commonly used with WHERE and HAVING statements. [S1]
+- **Syntax** — `SELECT column_name(s) FROM table_name WHERE column_name operator ALL (subquery);` where `operator` is a standard comparison operator. [S1]
+
+## 🧩 추출된 패턴 (Extracted patterns)
+- **All-or-nothing semantics** — because ALL requires every subquery value to satisfy the condition, an equality comparison (`= ALL`) against a subquery with varied values will almost always be FALSE unless the subquery happens to return a single repeated value. [S1]
+
+## 📖 세부 내용 (Details)
+- Products where ALL matching order detail rows have Quantity = 10 (returns FALSE in the worked example, because the Quantity column has many different values, not only 10): [S1]
+```sql
+SELECT ProductName
+FROM Products
+WHERE ProductID = ALL (
+  SELECT ProductID
+  FROM OrderDetails
+  WHERE Quantity = 10
+);
+```
+
+## ⚖️ 모순 및 업데이트 (Contradictions & updates)
+소스에서 모순되는 정보는 발견되지 않음.
+
+## 🛠️ 적용 사례 (Applied in summary)
+현재 발견된 실제 적용 사례가 없습니다 — ANY와 대비해서 "적어도 하나 vs. 전부 만족"을 구분해 이해해야 한다. [S1]
+
+## 💻 코드 패턴 (Code patterns)
+ALL with a comparison operator (SQL):
+```sql
+SELECT ProductName
+FROM Products
+WHERE ProductID = ALL (
+  SELECT ProductID
+  FROM OrderDetails
+  WHERE Quantity = 10
+);
+```
+
+## ✅ 검증 상태 및 신뢰도
+- **상태:** draft
+- **검증 단계:** conceptual
+- **출처 신뢰도:** B (W3Schools — widely used educational reference, not a primary standards body)
+- **신뢰 점수:** 0.88
+- **중복 검사 결과:** 신규 생성 (New discovery)
+
+## 🔗 지식 그래프 (Knowledge Graph)
+- **상위/루트:** [[SQL Tutorial]]
+- **관련 개념:** [[SQL Any]], [[SQL In]], [[SQL Having]]
+- **참조 맥락:** 서브쿼리 결과 전부를 만족해야 하는 조건에 사용 — ANY(하나라도 만족)와 대비.
+
+## 📚 출처 (Sources)
+- [S1] W3Schools — SQL ALL Operator — https://www.w3schools.com/sql/sql_all.asp
+
+## 📝 변경 이력 (Change history)
+- 2026-07-04: Initial draft synthesized from the W3Schools "SQL ALL Operator" page (Astra wiki-curation, P-Reinforce v3.1 format).