---
id: sql-drop-db
title: "SQL Drop DB"
category: "Database"
status: "draft"
verification_status: "conceptual"
canonical_id: ""
aliases: ["SQL DROP DATABASE Statement", "DROP DATABASE", "SQL 데이터베이스 삭제"]
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", "dropdatabase"]
raw_sources: ["https://www.w3schools.com/sql/sql_drop_db.asp"]
applied_in: []
github_commit: ""
---

# [[SQL Drop DB]]

## 🎯 한 줄 통찰 (One-line insight)
DROP DATABASE permanently deletes a database and every table, view, procedure, and row inside it — an irreversible, admin-only operation. [S1]

## 🧠 핵심 개념 (Core concepts)
- **DROP DATABASE statement** — permanently deletes an existing SQL database, including all its content (tables, views, stored procedures, data). [S1]
- **Requires admin privileges** — dropping a database needs administrative access. [S1]
- **Syntax** — `DROP DATABASE databasename;`. [S1]

## 🧩 추출된 패턴 (Extracted patterns)
- **Irreversibility warning** — the source explicitly warns to "be careful" since everything in the database is destroyed at once — implying a backup (see [[SQL Backup DB]]) should precede this in practice. [S1]

## 📖 세부 내용 (Details)
- Drop a database: `DROP DATABASE testDB;`. [S1]
- Verify removal: `SHOW DATABASES;` (MySQL) or `SELECT name FROM sys.databases;` (SQL Server). [S1]

## ⚖️ 모순 및 업데이트 (Contradictions & updates)
소스에서 모순되는 정보는 발견되지 않음.

## 🛠️ 적용 사례 (Applied in summary)
현재 발견된 실제 적용 사례가 없습니다 — 되돌릴 수 없는 명령이므로 실행 전 BACKUP DATABASE를 선행하는 것이 안전한 관행이다. [S1]

## 💻 코드 패턴 (Code patterns)
Drop a database (SQL):
```sql
DROP DATABASE testDB;
```

## ✅ 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 Create DB]], [[SQL Backup DB]], [[SQL Drop Table]]
- **참조 맥락:** 데이터베이스 전체를 영구 삭제할 때 사용 — 실행 전 백업이 사실상 필수.

## 📚 출처 (Sources)
- [S1] W3Schools — SQL DROP DATABASE Statement — https://www.w3schools.com/sql/sql_drop_db.asp

## 📝 변경 이력 (Change history)
- 2026-07-04: Initial draft synthesized from the W3Schools "SQL DROP DATABASE Statement" page (Astra wiki-curation, P-Reinforce v3.1 format).