c24165b8bc
에이전트 8종(대화형/프로그래머 C·S/디자이너/설계자/기획자/QA/PD/PM)에게 [공통 기본 능력 + 롤별 Specialty] 2층으로 지식을 주입하기 위한 재분류. 문서 내용·포맷은 무수정, 폴더 이동만 (6,372개 문서 수 보존 확인). - Topic_Programming → Domain_Programming (내부 구조 보존) - Topic_Graphic → Domain_Design - Topic_Business → Domain_Product - Topic_General → Domain_General - _Common 신설: Math(구 Topic_Math_Specialty), Reasoning(구 General/From_Thinking & Reasoning), Reasoning_Creativity(구 General/From_창의성), Communication(Poetic_Blog_Writing + From_writing) - 타 도메인의 From_* 폴더는 유지 (출처 표기일 뿐, 이미 도메인에 맞게 분류된 문서) - 빈 폴더 정리 (memory/procedures) - 에이전트→폴더 매핑은 workspace의 .astra/agent-knowledge-map.json (9개 에이전트) Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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3.7 KiB
id, title, category, status, verification_status, canonical_id, aliases, duplicate_of, source_trust_level, confidence_score, created_at, updated_at, review_reason, merge_history, tags, raw_sources, applied_in, github_commit
| id | title | category | status | verification_status | canonical_id | aliases | duplicate_of | source_trust_level | confidence_score | created_at | updated_at | review_reason | merge_history | tags | raw_sources | applied_in | github_commit | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| sql-in | SQL In | Database | draft | conceptual |
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B | 0.9 | 2026-07-04 | 2026-07-04 |
|
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SQL In
🎯 한 줄 통찰 (One-line insight)
IN is a shorthand for multiple OR conditions on the same column, and can take either a literal value list or a subquery result set. [S1]
🧠 핵심 개념 (Core concepts)
- IN operator — checks if a column's value matches any value within a provided list, functioning as shorthand for chained OR conditions. [S1]
- Syntax —
SELECT column_name(s) FROM table_name WHERE column_name IN (value1, value2, ...);. [S1] - NOT IN — returns records whose value is NOT any of the listed values. [S1]
- IN (SELECT ...) — the value list can be replaced with a subquery, returning rows present in the subquery's result. [S1]
🧩 추출된 패턴 (Extracted patterns)
- IN as OR-shorthand —
WHERE Country IN ('Germany','France','UK')is equivalent to, and shorter/more readable than,WHERE Country='Germany' OR Country='France' OR Country='UK'. [S1] - Subquery membership test —
WHERE CustomerID IN (SELECT CustomerID FROM Orders)filters the outer query to rows whose key appears in a related table's query result — a lightweight alternative to a JOIN when only filtering (not selecting extra columns) is needed. [S1]
📖 세부 내용 (Details)
- Literal list form:
SELECT * FROM Customers WHERE Country IN ('Germany', 'France', 'UK');— equivalent longer form:WHERE Country = 'Germany' OR Country = 'France' OR Country = 'UK';. [S1] - Negated list form:
WHERE Country NOT IN ('Germany', 'France', 'UK');. [S1] - Subquery form:
WHERE CustomerID IN (SELECT CustomerID FROM Orders);returns customers who have placed at least one order. [S1] - Negated subquery form:
WHERE CustomerID NOT IN (SELECT CustomerID FROM Orders);returns customers who have never placed an order. [S1]
⚖️ 모순 및 업데이트 (Contradictions & updates)
소스에서 모순되는 정보는 발견되지 않음.
🛠️ 적용 사례 (Applied in summary)
현재 발견된 실제 적용 사례가 없습니다 — 실제 예제에서 "74개 레코드가 반환되었으므로 17명의 고객이 주문이 없다"는 식으로 IN/NOT IN 결과를 상호 검증하는 방식이 소스에 등장한다. [S1]
💻 코드 패턴 (Code patterns)
Value-list IN (SQL):
SELECT * FROM Customers
WHERE Country IN ('Germany', 'France', 'UK');
Subquery IN (SQL):
SELECT * FROM Customers
WHERE CustomerID IN (SELECT CustomerID FROM Orders);
✅ 검증 상태 및 신뢰도
- 상태: draft
- 검증 단계: conceptual
- 출처 신뢰도: B (W3Schools — widely used educational reference, not a primary standards body)
- 신뢰 점수: 0.90
- 중복 검사 결과: 신규 생성 (New discovery)
🔗 지식 그래프 (Knowledge Graph)
- 상위/루트: SQL Tutorial
- 관련 개념: SQL Or, SQL Between, SQL Exists, SQL Where
- 참조 맥락: 동일 컬럼에 대한 다중 OR 조건이나 서브쿼리 멤버십 테스트가 필요할 때 재사용.
📚 출처 (Sources)
- [S1] W3Schools — SQL IN Operator — https://www.w3schools.com/sql/sql_in.asp
📝 변경 이력 (Change history)
- 2026-07-04: Initial draft synthesized from the W3Schools "SQL IN Operator" page (Astra wiki-curation, P-Reinforce v3.1 format).