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Antigravity Agent c24165b8bc refactor(topics): 멀티 에이전트용 지식 재편 — _Common(공통 기본기) + Domain_* 구조

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>

2026-07-11 11:05:56 +09:00

4.1 KiB

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title

SQL Intro

🎯 한 줄 통찰 (One-line insight)

SQL is the ANSI/ISO-standard language for accessing and manipulating data in a Relational Database Management System (RDBMS), where data lives in tables made of rows and columns. [S1]

🧠 핵심 개념 (Core concepts)

SQL (Structured Query Language) — a standard language for accessing and manipulating databases, standardized by ANSI (1986) and ISO (1987). [S1]
What SQL can do — execute queries, retrieve/insert/update/delete records, create databases/tables/stored procedures/views, and set permissions on tables, procedures, and views. [S1]
Standard but fragmented — although SQL is an ANSI/ISO standard, different database systems implement their own proprietary extensions on top of a common core (SELECT/UPDATE/DELETE/INSERT/WHERE). [S1]
RDBMS (Relational Database Management System) — the basis for SQL and all modern database systems (MS SQL Server, IBM DB2, Oracle, MySQL, MS Access); data is stored in tables, where a column is a vertical entity and a record (row) is a horizontal entity. [S1]
Using SQL on a web site — typically requires an RDBMS program (MS Access/SQL Server/MySQL), a server-side scripting language (PHP/ASP) to run SQL, and HTML/CSS to present the results. [S1]

🧩 추출된 패턴 (Extracted patterns)

Table = columns + rows — every RDBMS models data as tables where columns define the schema and records (rows) hold the data. [S1]
Standard-core + vendor-extension — expect the major commands to work everywhere, but expect proprietary extensions to differ per vendor. [S1]
Three-layer web stack — RDBMS (data) + server-side language (logic) + HTML/CSS (presentation) is the classic pattern for a database-backed web site. [S1]

📖 세부 내용 (Details)

SQL stands for Structured Query Language and lets you access and manipulate data stored in a database. [S1]
It became a standard of the American National Standards Institute (ANSI) in 1986 and of the International Organization for Standardization (ISO) in 1987. [S1]
Example table ("Customers") illustrates the RDBMS model:

SELECT * FROM Customers;

The Customers example table has columns CustomerID, CustomerName, ContactName, Address, City, PostalCode, Country, and each row is one customer record. [S1]

⚖️ 모순 및 업데이트 (Contradictions & updates)

소스에서 모순되는 정보는 발견되지 않음.

🛠️ 적용 사례 (Applied in summary)

현재 발견된 실제 적용 사례가 없습니다 — 이 문서는 개론(Intro) 페이지로, 이후 SQL 튜토리얼 전체(SELECT/WHERE/JOIN 등)에서 여기서 정의한 RDBMS/테이블 모델이 반복 적용된다. [S1]

💻 코드 패턴 (Code patterns)

Select all records from a table (SQL):

SELECT * FROM Customers;

✅ 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 Syntax, SQL Select, SQL Create Table
참조 맥락: SQL 튜토리얼 전체의 진입점 — RDBMS/테이블 모델을 처음 정의하는 문서.

📚 출처 (Sources)

[S1] W3Schools — SQL Intro — https://www.w3schools.com/sql/sql_intro.asp

📝 변경 이력 (Change history)

2026-07-04: Initial draft synthesized from the W3Schools "SQL Intro" page (Astra wiki-curation, P-Reinforce v3.1 format).

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