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
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
securedb is a fast and lightweight Python framework to easily interact with JSON-based encrypted databases.

securedb securedb is a Python framework that lets you work with encrypted JSON databases. Features: newkey() to generate an encryption key write(key,

Filippo Romani 2 Nov 23, 2022
TinyDB is a lightweight document oriented database optimized for your happiness :)

Quick Links Example Code Supported Python Versions Documentation Changelog Extensions Contributing Introduction TinyDB is a lightweight document orien

Markus Siemens 5.6k Dec 30, 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
A fast ordered NoSQL database.

MerkavaDB Note This is still in active development. Things will change. If you are interested in helping out, or would like to see any particular feat

Adam Hopkins 6 Sep 29, 2022
This is a simple graph database in SQLite, inspired by

This is a simple graph database in SQLite, inspired by "SQLite as a document database".

Denis Papathanasiou 1.2k Jan 03, 2023
A NoSQL database made in python.

CookieDB A NoSQL database made in python.

cookie 1 Nov 30, 2022
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
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
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
Python object-oriented database

ZODB, a Python object-oriented database ZODB provides an object-oriented database for Python that provides a high-degree of transparency. ZODB runs on

Zope 574 Dec 31, 2022
Decentralised graph database management system

Decentralised graph database management system To get started clone the repo, and run the command below. python3 database.py Now, create a new termina

Omkar Patil 2 Apr 18, 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
Oh-My-PickleDB is an open source key-value store using Python's json module.

OH-MY-PICKLEDB oh-my-pickleDB is a lightweight, fast, and intuitive data manager written in python 📝 Table of Contents About Getting Started Deployme

Adrián Toral 6 Feb 20, 2022
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
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
Codeqlcompile - 自动反编译闭源应用,创建codeql数据库

codeql_compile 自动反编译闭源应用,创建codeql数据库 准备 首先下载ecj.jar和idea提供反编译的java-decompiler.ja

236 Jan 05, 2023
A very simple document database

DockieDb A simple in-memory document database. Installation Build the Wheel Fork or clone this repository and run python setup.py bdist_wheel in the r

1 Jan 16, 2022
Simple embedded in memory json database

dbj dbj is a simple embedded in memory json database. It is easy to use, fast and has a simple query language. The code is fully documented, tested an

Pedro Gonring 25 Aug 12, 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