Python function to query SQLite files stored on S3

Overview

sqlite-s3-query CircleCI Test Coverage

Python function to query a SQLite file stored on S3. It uses multiple HTTP range requests per query to avoid downloading the entire file, and so is suitable for large databases.

All the HTTP requests for a query request the same version of the database object in S3, so queries should complete succesfully even if the database is replaced concurrently by another S3 client. Versioning must be enabled on the S3 bucket.

Operations that write to the database are not supported.

Inspired by phiresky's sql.js-httpvfs, and dacort's Stack Overflow answer.

Installation

sqlite-s3-query depends on APSW, which is not available on PyPI, but can be installed directly from GitHub.

pip install sqlite_s3_query
pip install https://github.com/rogerbinns/apsw/releases/download/3.36.0-r1/apsw-3.36.0-r1.zip --global-option=fetch --global-option=--version --global-option=3.36.0 --global-option=--all --global-option=build --global-option=--enable-all-extensions

Usage

from sqlite_s3_query import sqlite_s3_query

results_iter = sqlite_s3_query(
    'SELECT * FROM my_table WHERE my_column = ?', params=('my-value',),
    url='https://my-bucket.s3.eu-west-2.amazonaws.com/my-db.sqlite',
)

for row in results_iter:
    print(row)

If in your project you use multiple queries to the same file, functools.partial can be used to make an interface with less duplication.

from functools import partial
from sqlite_s3_query import sqlite_s3_query

query_my_db = partial(sqlite_s3_query,
    url='https://my-bucket.s3.eu-west-2.amazonaws.com/my-db.sqlite',
)

for row in query_my_db('SELECT * FROM my_table WHERE my_col = ?', params=('my-value',)):
    print(row)

for row in query_my_db('SELECT * FROM my_table_2 WHERE my_col = ?', params=('my-value',)):
    print(row)

The AWS region and the credentials are taken from environment variables, but this can be changed using the get_credentials parameter. Below shows the default implementation of this that can be overriden.

import os
from functools import partial
from sqlite_s3_query import sqlite_s3_query

query_my_db = partial(sqlite_s3_query
    url='https://my-bucket.s3.eu-west-2.amazonaws.com/my-db.sqlite',
    get_credentials=lambda: (
        os.environ['AWS_DEFAULT_REGION'],
        os.environ['AWS_ACCESS_KEY_ID'],
        os.environ['AWS_SECRET_ACCESS_KEY'],
        os.environ.get('AWS_SESSION_TOKEN'),  # Only needed for temporary credentials
    ),
)

for row in query_my_db('SELECT * FROM my_table_2 WHERE my_col = ?', params=('my-value',)):
    print(row)
Owner
Michal Charemza
Michal Charemza
Turn SELECT queries returned by a query into links to execute them

datasette-query-links Turn SELECT queries returned by a query into links to execute them Installation Install this plugin in the same environment as D

Simon Willison 5 Apr 27, 2022
A super easy, but really really bad DBMS

Dumb DB Are you looking for a reliable database management system? Then you've come to the wrong place. This is a very small database management syste

Elias Amha 5 Dec 28, 2022
A Python wrapper API for operating and working with the Neo4j Graph Data Science (GDS) library

gdsclient This repo hosts the sources for gdsclient, a Python wrapper API for operating and working with the Neo4j Graph Data Science (GDS) library. g

Neo Technology 101 Jan 05, 2023
A Simple , ☁️ Lightweight , 💪 Efficent JSON based database for 🐍 Python.

A Simple, Lightweight, Efficent JSON based DataBase for Python The current stable version is v1.6.1 pip install pysondb==1.6.1 Support the project her

PysonDB 282 Jan 07, 2023
LaikaDB, banco de dados para projetos simples.

LaikaDB LaikaDB é um banco de dados noSQL para uso local e simples, onde você pode realizar gravações e leituras de forma eficiente e simples. Todos o

Jaedson Silva 0 Jun 24, 2022
Connect Django Project to PostgreSQL

An application for learning things with creating quizzes and flashcards.Django, PostgresSQL are used for this project.

Cena Ashoori 1 Jan 25, 2022
Mongita is to MongoDB as SQLite is to SQL

Mongita is a lightweight embedded document database that implements a commonly-used subset of the MongoDB/PyMongo interface. Mongita differs from MongoDB in that instead of being a server, Mongita is

Scott Rogowski 809 Jan 07, 2023
pickleDB is an open source key-value store using Python's json module.

pickleDB pickleDB is lightweight, fast, and simple database based on the json module. And it's BSD licensed! pickleDB is Fun import pickledb

Harrison Erd 738 Jan 04, 2023
MyReplitDB - the most simplistic and easiest wrapper to use for replit's database system.

MyReplitDB is the most simplistic and easiest wrapper to use for replit's database system. Installing You can install it from the PyPI Or y

kayle 4 Jul 03, 2022
TelegramDB - A library which uses your telegram account as a database for your projects

TelegramDB A library which uses your telegram account as a database for your projects. Basic Usage from pyrogram import Client from telegram import Te

Kaizoku 79 Nov 22, 2022
HTTP graph database built in Python 3

KiwiDB HTTP graph database built in Python 3. Reference Format References are strings in the format: { JanCraft 1 Dec 17, 2021

Tools for analyzing Git history using SQLite

git-history Tools for analyzing Git history using SQLite Installation Install this tool using pip: $ pip install git-history Usage This tool can be r

Simon Willison 128 Jan 02, 2023
Elara DB is an easy to use, lightweight NoSQL database that can also be used as a fast in-memory cache.

Elara DB is an easy to use, lightweight NoSQL database written for python that can also be used as a fast in-memory cache for JSON-serializable data. Includes various methods and features to manipula

Saurabh Pujari 101 Jan 04, 2023
Simple json type database for python3

What it is? Simple json type database for python3! What about speed? The speed is great! All data is stored in RAM until saved. How to install? pip in

3 Feb 11, 2022
AWS Tags As A Database is a Python library using AWS Tags as a Key-Value database.

AWS Tags As A Database is a Python library using AWS Tags as a Key-Value database. This database is completely free* 💸

Oren Leung 42 Nov 25, 2022
Enfilade: Tool to Detect Infections in MongoDB Instances

Enfilade: Tool to Detect Infections in MongoDB Instances

Aditya K Sood 7 Feb 21, 2022
Makes google's political ad database actually useful

Making Google's political ad transparency library suck less This is a series of scripts that takes Google's political ad transparency data and makes t

The Guardian 7 Apr 28, 2022
Shelf DB is a tiny document database for Python to stores documents or JSON-like data

Shelf DB Introduction Shelf DB is a tiny document database for Python to stores documents or JSON-like data. Get it $ pip install shelfdb shelfquery S

Um Nontasuwan 35 Nov 03, 2022
This repo contains the backend of the KMK project

KMK Backend This repository contains the backend part of the KMK project Demo Watch it on Youtube Getting started Pre-commit hooks After you cloned th

21 Nov 26, 2022
This project is related to a No-SQL database, whose data are referred to autoctone botanic species

This project is related to a No-SQL database, whose data are referred to autoctone botanic species. The final goal is creating a function that performs the estimation of the ornamental value, given t

Amatofrancesco99 2 Mar 08, 2022