tool.sql_queries.adb2e9fbdbb19595 SKILL.md skillA
tool.sql_queries.adb2e9fbdbb19595 from ai45lab/openart is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add ai45lab/openart/tool.sql_queries.adb2e9fbdbb19595@git:20260717.d255bbcPins git:20260717.d255bbc in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- ai45lab/openart
- Path
openart-tools/tool.sql_queries.adb2e9fbdbb19595/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260717.d255bbc, committed Jul 17, 2026
- Size
- 11,846 bytes
- Repository stars
- 271
- License
- AGPL-3.0
"\uBAA8\uB4E0 \uC8FC\uC694 \uB370\uC774\uD130 \uC6E8\uC5B4\uD558\uC6B0\.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
Use this skill when the OpenART registry selects `tool.sql_queries.adb2e9fbdbb19595` for the current task.
# SQL 쿼리 스킬
모든 주요 데이터 웨어하우스 방언에서 정확하고 성능이 뛰어나며 가독성 높은 SQL을 작성합니다.
## 방언별 레퍼런스
### PostgreSQL (Aurora, RDS, Supabase, Neon 포함)
**날짜/시간:**
```sql
-- 현재 날짜/시간
CURRENT_DATE, CURRENT_TIMESTAMP, NOW()
-- 날짜 연산
date_column + INTERVAL '7 days'
date_column - INTERVAL '1 month'
-- 기간 단위로 절삭
DATE_TRUNC('month', created_at)
-- 부분 추출
EXTRACT(YEAR FROM created_at)
EXTRACT(DOW FROM created_at) -- 0=일요일
-- 포맷
TO_CHAR(created_at, 'YYYY-MM-DD')
```
**문자열 함수:**
```sql
-- 연결
first_name || ' ' || last_name
CONCAT(first_name, ' ', last_name)
-- 패턴 매칭
column ILIKE '%pattern%' -- 대소문자 구분 없음
column ~ '^regex_pattern$' -- 정규식
-- 문자열 조작
LEFT(str, n), RIGHT(str, n)
SPLIT_PART(str, delimiter, position)
REGEXP_REPLACE(str, pattern, replacement)
```
**배열 및 JSON:**
```sql
-- JSON 접근
data->>'key' -- 텍스트
data->'nested'->'key' -- json
data#>>'{path,to,key}' -- 중첩 텍스트
-- 배열 연산
ARRAY_AGG(column)
ANY(array_column)
array_column @> ARRAY['value']
```
**성능 팁:**
- `EXPLAIN ANALYZE`로 쿼리 프로파일링
- 자주 필터링/조인하는 컬럼에 인덱스 생성
- 상관 서브쿼리는 `IN` 대신 `EXISTS` 사용
- 자주 쓰는 필터 조건에 부분 인덱스 활용
- 동시 접근 시 커넥션 풀링 사용
---
…Read the whole file at its exact version.
How to install
mdr add ai45lab/openart/tool.sql_queries.adb2e9fbdbb19595@sha256:27a91ea361c43a03The line at the top of this page pins the label git:20260717.d255bbc, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_3sttxqmq67muv46m)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Jul 17, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (11846 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
ai45lab/openart · 271 stars · license AGPL-3.0 · pushed 2026-11-02 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_3sttxqmq67muv46m GET https://markdownregistry.com/api/v1/resolve?ref=ai45lab/openart/tool.sql_queries.adb2e9fbdbb19595 GET https://markdownregistry.com/api/v1/blob/27a91ea361c43a03703e3cc29a17cf4eb6bcd9f68f2b456782bb9db6b8795b7d
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.