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: python-mysql-select
+title: "Python MySQL Select"
+category: "Programming_Language"
+status: "draft"
+verification_status: "conceptual"
+canonical_id: ""
+aliases: ["fetchall()", "fetchone()", "파이썬 MySQL 조회"]
+duplicate_of: ""
+source_trust_level: "B"
+confidence_score: 0.9
+created_at: 2026-07-04
+updated_at: 2026-07-04
+review_reason: ""
+merge_history: []
+tags: ["python", "mysql", "w3schools", "select", "fetchall", "fetchone"]
+raw_sources: ["https://www.w3schools.com/python/python_mysql_select.asp"]
+applied_in: []
+github_commit: ""
+---
+
+# [[Python MySQL Select]]
+
+## 🎯 한 줄 통찰 (One-line insight)
+Running a SELECT doesn't itself return rows — the cursor must be drained with `fetchall()` (every row) or `fetchone()` (just the first row) after `execute()`. [S1]
+
+## 🧠 핵심 개념 (Core concepts)
+- **`execute("SELECT * FROM customers")`** — runs the query. [S1]
+- **`fetchall()`** — fetches ALL rows from the last executed statement. [S1]
+- **Selecting specific columns** — `SELECT name, address FROM customers`. [S1]
+- **`fetchone()`** — returns only the first row of the result. [S1]
+
+## 📖 세부 내용 (Details)
+- Select all, fetch all: `mycursor.execute("SELECT * FROM customers"); myresult = mycursor.fetchall(); for x in myresult: print(x)`. [S1]
+- Select specific columns: `mycursor.execute("SELECT name, address FROM customers")`. [S1]
+- Fetch just one row: `myresult = mycursor.fetchone(); print(myresult)`. [S1]
+
+## ⚖️ 모순 및 업데이트 (Contradictions & updates)
+소스에서 모순되는 정보는 발견되지 않음.
+
+## 🛠️ 적용 사례 (Applied in summary)
+현재 발견된 실제 적용 사례가 없습니다 — Where/Order By/Limit 챕터에서 이 SELECT+fetch 패턴에 필터/정렬/제한이 추가된다. [S1]
+
+## 💻 코드 패턴 (Code patterns)
+Select and fetch all rows (Python):
+```python
+mycursor.execute("SELECT * FROM customers")
+myresult = mycursor.fetchall()
+for x in myresult:
+    print(x)
+```
+
+## ✅ 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:** [[Python Tutorial]]
+- **관련 개념:** [[Python MySQL Where]], [[Python MySQL Order By]], [[Python MySQL Limit]]
+- **참조 맥락:** 조회 결과를 가져오는 fetchall()/fetchone() 패턴 — 이후 필터/정렬/제한 챕터의 기초.
+
+## 📚 출처 (Sources)
+- [S1] W3Schools — Python MySQL Select From — https://www.w3schools.com/python/python_mysql_select.asp
+
+## 📝 변경 이력 (Change history)
+- 2026-07-04: Initial draft synthesized from the W3Schools "Python MySQL Select From" page (Astra wiki-curation, P-Reinforce v3.1 format).