# Database Query

> Generate, optimize, and explain SQL queries - supports SQLite, PostgreSQL, MySQL with schema introspection, migration generation, and query performance analysis

- Skill: `chainlesschain/database-query` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds@latest add chainlesschain/database-query`
- Raw SKILL.md: https://api.skillmd.com/api/skills/chainlesschain/database-query/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Web & Frontend
- License: MIT
- Author: chainlesschain (https://skillmd.com/u/chainlesschain)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/chainlesschain/database-query

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# Database Query Helper

Generate, optimize, and explain SQL queries.

## Usage

```
/database-query generate "<natural language description>"
/database-query optimize "<sql query>"
/database-query schema [table-name]
/database-query migrate "<description of change>"
/database-query explain "<sql query>"
```

## Supported Dialects

SQLite (default, app database), PostgreSQL, MySQL

## Features

- Natural language to SQL generation
- Query optimization suggestions (indexes, joins, subqueries)
- Schema introspection from app database
- Migration script generation (up/down)
- EXPLAIN plan analysis