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

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- Topic_Programming 최종 문서 수: 2784 → 3985.

10_Wiki/Topic_Programming/Topic_Python/Python_MySQL_Delete.md

@@ -0,0 +1,70 @@
+---
+id: python-mysql-delete
+title: "Python MySQL Delete"
+category: "Programming_Language"
+status: "draft"
+verification_status: "conceptual"
+canonical_id: ""
+aliases: ["파이썬 MySQL 삭제"]
+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", "delete", "commit"]
+raw_sources: ["https://www.w3schools.com/python/python_mysql_delete.asp"]
+applied_in: []
+github_commit: ""
+---
+
+# [[Python MySQL Delete]]
+
+## 🎯 한 줄 통찰 (One-line insight)
+Just like INSERT, a DELETE needs `mydb.commit()` to actually take effect, and omitting the WHERE clause deletes every row — the same two warnings from raw SQL DELETE apply identically through the Python connector. [S1]
+
+## 🧠 핵심 개념 (Core concepts)
+- **`DELETE FROM ... WHERE ...`** — deletes matching records. [S1]
+- **`mydb.commit()`** — required for the delete to persist. [S1]
+- **Missing WHERE = delete everything** — same risk as raw SQL DELETE. [S1]
+- **`mycursor.rowcount`** — number of rows deleted. [S1]
+- **SQL injection prevention** — use `%s` placeholders for user-provided delete criteria. [S1]
+
+## 📖 세부 내용 (Details)
+- Basic delete: `sql = "DELETE FROM customers WHERE address = 'Mountain 21'"; mycursor.execute(sql); mydb.commit(); print(mycursor.rowcount, "record(s) deleted")`. [S1]
+- Parameterized delete: `sql = "DELETE FROM customers WHERE address = %s"; adr = ("Yellow Garden 2",); mycursor.execute(sql, adr); mydb.commit()`. [S1]
+
+## ⚖️ 모순 및 업데이트 (Contradictions & updates)
+소스에서 모순되는 정보는 발견되지 않음. WHERE 누락 시 전체 삭제된다는 경고가 SQL Delete 챕터와 동일하게 반복됨. [S1]
+
+## 🛠️ 적용 사례 (Applied in summary)
+현재 발견된 실제 적용 사례가 없습니다 — SQL Delete 챕터의 규칙(WHERE 필수, commit 필요)이 mysql.connector API로 그대로 이어진다. [S1]
+
+## 💻 코드 패턴 (Code patterns)
+Parameterized delete with commit (Python):
+```python
+sql = "DELETE FROM customers WHERE address = %s"
+adr = ("Yellow Garden 2", )
+mycursor.execute(sql, adr)
+mydb.commit()
+print(mycursor.rowcount, "record(s) deleted")
+```
+
+## ✅ 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:** [[SQL Delete]], [[Python MySQL Insert]], [[Python MySQL Update]]
+- **참조 맥락:** SQL Delete의 위험성(WHERE 누락)이 mysql.connector에서도 동일하게 적용된다.
+
+## 📚 출처 (Sources)
+- [S1] W3Schools — Python MySQL Delete From By — https://www.w3schools.com/python/python_mysql_delete.asp
+
+## 📝 변경 이력 (Change history)
+- 2026-07-04: Initial draft synthesized from the W3Schools "Python MySQL Delete" page (Astra wiki-curation, P-Reinforce v3.1 format).