---
id: sql-order-by
title: "SQL Order By"
category: "Database"
status: "draft"
verification_status: "conceptual"
canonical_id: ""
aliases: ["SQL ORDER BY Keyword", "ORDER BY clause", "SQL 정렬"]
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: ["sql", "database", "w3schools", "orderby", "sorting"]
raw_sources: ["https://www.w3schools.com/sql/sql_orderby.asp"]
applied_in: []
github_commit: ""
---

# [[SQL Order By]]

## 🎯 한 줄 통찰 (One-line insight)
ORDER BY sorts a result-set by one or more columns, ascending by default, and can mix ascending/descending direction per column. [S1]

## 🧠 핵심 개념 (Core concepts)
- **ORDER BY keyword** — sorts the result-set in ascending (ASC, default) or descending (DESC) order. [S1]
- **Syntax** — `SELECT column1, column2, ... FROM table_name ORDER BY column1, column2, ... ASC|DESC;`. [S1]
- **Alphabetical sorting** — for text columns, ORDER BY sorts alphabetically (and reverse-alphabetically with DESC). [S1]
- **Multi-column sort** — sorting by several columns applies the first column as primary sort key and subsequent columns as tie-breakers. [S1]

## 🧩 추출된 패턴 (Extracted patterns)
- **Per-column direction** — each column in a multi-column ORDER BY can independently specify ASC or DESC, e.g. `ORDER BY Country ASC, CustomerName DESC`. [S1]

## 📖 세부 내용 (Details)
- Sort ascending by default: `SELECT * FROM Products ORDER BY Price;`. [S1]
- Sort descending: `SELECT * FROM Products ORDER BY Price DESC;`. [S1]
- Sort multiple columns, Country first then CustomerName as tie-break: `SELECT * FROM Customers ORDER BY Country, CustomerName;`. [S1]
- Combine directions per column: `SELECT * FROM Customers ORDER BY Country ASC, CustomerName DESC;`. [S1]

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

## 🛠️ 적용 사례 (Applied in summary)
현재 발견된 실제 적용 사례가 없습니다 — 정렬은 이후 JOIN/GROUP BY 결과를 사람이 읽기 좋게 만드는 데 반복적으로 함께 쓰인다. [S1]

## 💻 코드 패턴 (Code patterns)
Sort ascending (default) then descending (SQL):
```sql
SELECT * FROM Products ORDER BY Price;
SELECT * FROM Products ORDER BY Price DESC;
```
Multi-column sort with mixed direction (SQL):
```sql
SELECT * FROM Customers
ORDER BY Country ASC, CustomerName DESC;
```

## ✅ 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 Select]], [[SQL Where]], [[SQL Group By]]
- **참조 맥락:** 조회 결과를 정렬해서 보여줘야 하는 모든 쿼리에서 재사용되는 기본 문법.

## 📚 출처 (Sources)
- [S1] W3Schools — SQL ORDER BY Keyword — https://www.w3schools.com/sql/sql_orderby.asp

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