Database Engine Implementation Guide

Overview

Database engines provide read-only access to SQL and NoSQL databases as iterable data sources. They wrap database drivers to provide a unified BaseIterable interface.

Architecture

DBDriver (iterable/db/base.py) - Abstract base class for database drivers
DatabaseIterable (iterable/db/iterable.py) - Wrapper that makes DBDriver work as BaseIterable
Driver Registry (iterable/db/__init__.py) - Registry for mapping engine names to driver classes

Adding New Database Engines

Step-by-Step Process

Installs

Source

smithery.ai/ski…entation

First Seen

Mar 19, 2026