Nemo / docs

Documentation Portal

Complete technical reference manual for Nemo: an embedded, on-disk relational database engine written in C++20 with zero-copy Python bindings, zero-lock concurrency, and persistent .nm storage.

Getting Started

Connecting to Nemo Database

Complete guide to connecting, path resolution, timeout handling, and connection pooling.

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Python API

Nemo Python Functions & API

Reference for the Nemo Python package, database objects, functions, and public API.

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Synchronous Python Connector

Reference for synchronous connections, results, prepared statements, pools, and cursors.

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Asynchronous Python Connector

Reference for asyncio connections, results, prepared statements, pools, and cursors.

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Core Concepts

Nemo Transactions Reference

Transaction methods, context managers, autocommit modes, MVCC, and concurrency patterns.

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Nemo Datatypes Reference

Reference for Nemo’s native SQL types, storage bounds, aliases, and Python mappings.

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SQL Reference

Nemo SQL Reference & Grammar

SQL statements, syntax, constraints, sequences, optimization, and native table operations.

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SQL Built-in Functions

Reference for SQL functions covering JSON, arrays, strings, math, dates, networks, and sequences.

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SQL Parameters & Prepared Statements

Parameter placeholders, type coercion, batch execution, prepared statements, and safe query patterns.

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Engine Internals

Engine Architecture: How It Works

Deep dive into Nemo’s query lifecycle, storage, buffer pool, concurrency, and crash recovery.

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Logging, Diagnostics & Exceptions

Logging configuration, query diagnostics, profiling callbacks, and the exception hierarchy.

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