database-query
Execute SQL queries against PostgreSQL (psql) or MySQL (mysql) databases using their CLI clients.
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- ThinkfleetAI/thinkfleet-engine
- Last source activity
- February 1, 2026 at 16:21
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- database-query
- description
- Execute SQL queries against PostgreSQL (psql) or MySQL (mysql) databases using their CLI clients.
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- {"thinkfleetbot":{"emoji":"🗄️","requires":{"bins":"[Truncated]"}}}
# Database Query
Execute SQL against PostgreSQL or MySQL via CLI.
## Environment Variables
- `DATABASE_URL` - PostgreSQL connection string (e.g. `postgres://user:pass@host:5432/db`)
- `MYSQL_HOST`, `MYSQL_USER`, `MYSQL_PASSWORD`, `MYSQL_DATABASE` - MySQL connection params
## PostgreSQL
```bash
psql "$DATABASE_URL" -c "SELECT id, name FROM users LIMIT 10;"
```
CSV output:
```bash
psql "$DATABASE_URL" --csv -c "SELECT * FROM orders WHERE created_at > now() - interval '7 days';"
```
List tables:
```bash
psql "$DATABASE_URL" -c "\dt"
```
Describe table:
```bash
psql "$DATABASE_URL" -c "\d users"
```
## MySQL
```bash
mysql -h "$MYSQL_HOST" -u "$MYSQL_USER" -p"$MYSQL_PASSWORD" "$MYSQL_DATABASE" -e "SELECT id, name FROM users LIMIT 10;"
```
## Safety
- Always use `LIMIT` on SELECT queries unless the user explicitly asks for all rows.
- Never run `DROP`, `TRUNCATE`, or `DELETE` without explicit user confirmation.
- Prefer read-only queries. If a write is needed, confirm with the user first.
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