Items tagged projects, sqlite in 2020
Filters: Year: 2020 × projects × sqlite × Sorted by date
Building a search engine for datasette.io
This week I added a search engine to datasette.io, using the search indexing tool I’ve been building for Dogsheep.
[... 1391 words]Building an Evernote to SQLite exporter
I’ve been using Evernote for over a decade, and I’ve long wanted to export my data from it so I can do interesting things with it.
[... 1879 words]evernote-to-sqlite (via) The latest tool in my Dogsheep series of utilities for personal analytics: evernote-to-sqlite takes Evernote note exports en their ENEX XML format and loads them into a SQLite database. Embedded images are loaded into a BLOB column and the output of their cloud-based OCR system is added to a full-text search index. Notes have a latitude and longitude which means you can visualize your notes on a map using Datasette and datasette-cluster-map. # 12th October 2020, 12:38 am
Datasette Weekly: Datasette 0.50, git scraping, extracting columns (via) The first edition of the new Datasette Weekly newsletter—covering Datasette 0.50, Git scraping, extracting columns with sqlite-utils and featuring datasette-graphql as the first “plugin of the week” # 10th October 2020, 9 pm
Weeknotes: software carpentry, compiling modules for SQLite
This week I completed the Software Carpentry instructor training course, added two foundational features to sqlite-utils and learned how to compile modules for SQLite.
Refactoring databases with sqlite-utils extract
Yesterday I described the new sqlite-utils transform mechanism for applying SQLite table transformations that go beyond those supported by ALTER TABLE. The other new feature in sqlite-utils 2.20 builds on that capability to allow you to refactor a database table by extracting columns into separate tables. I’ve called it sqlite-utils extract.
Executing advanced ALTER TABLE operations in SQLite
SQLite’s ALTER TABLE has some significant limitations: it can’t drop columns (UPDATE: that was fixed in SQLite 3.35.0 in March 2021), it can’t alter NOT NULL status, it can’t change column types. Since I spend a lot of time with SQLite these days I’ve written some code to fix this—both from Python and as a command-line utility.
[... 689 words]Weeknotes: Installing Datasette with Homebrew, more GraphQL, WAL in SQLite
This week I’ve been working on making Datasette easier to install, plus wide-ranging improvements to the Datasette GraphQL plugin.
[... 1009 words]GraphQL in Datasette with the new datasette-graphql plugin
This week I’ve mostly been building datasette-graphql, a plugin that adds GraphQL query support to Datasette.
[... 1249 words]sqlite-utils 2.14 (via) I finally figured out porter stemming with SQLite full-text search today—it turns out it’s as easy as adding tokenize=’porter’ to the CREATE VIRTUAL TABLE statement. So I just shipped sqlite-utils 2.14 with a tokenize= option (plus the ability to insert binary file data from stdin). # 1st August 2020, 9:19 pm
Fun with binary data and SQLite
This week I’ve been mainly experimenting with binary data storage in SQLite. sqlite-utils can now insert data from binary files, and datasette-media can serve content over HTTP that originated as binary BLOBs in a database file.
[... 949 words]sqlite-utils 2.12 (via) I’ve been experimenting with ways of improving BLOB support in Datasette and sqlite-utils. This new version of sqlite-utils includes a “sqlite-utils insert-files” command, which can recursively crawl directories for files and add their contents to SQLite with configurable columns containing their metadata.
I was inspired by Paul Ford who has been creating multi-GB SQLite databases of images and PDFs. It turns out that when disk space is cheap this is a pretty effective way of working with interesting corpuses of documents and images. # 27th July 2020, 7:36 am
Weeknotes: cookiecutter templates, better plugin documentation, sqlite-generate
I spent this week spreading myself between a bunch of smaller projects, and finally getting familiar with cookiecutter. I wrote about my datasette-plugin cookiecutter template earlier in the week; here’s what else I’ve been working on.
[... 703 words]sqlite-generate (via) I wrote this tool today to generate arbitrarily large SQLite databases, for testing purposes. You tell it how many tables, columns and rows you want and it will use the Faker Python library to generate random data and populate the tables with it. # 23rd June 2020, 2:19 am
Using SQL to find my best photo of a pelican according to Apple Photos
According to the Apple Photos internal SQLite database, this is the most aesthetically pleasing photograph I have ever taken of a pelican:
[... 1937 words]Weeknotes: Datasette 0.41, photos breakthroughs
Shorter weeknotes this week, because my main project for the week warrants a detailed write-up on its own (coming soon... update 21st May here it is).
[... 867 words]Weeknotes: Datasette 0.39 and many other projects
This week’s theme: Well, I’m not going anywhere. So a ton of progress to report on various projects.
[... 806 words]hacker-news-to-sqlite (via) The latest in my Dogsheep series of tools: hacker-news-to-sqlite uses the Hacker News API to fetch your comments and submissions from Hacker News and save them to a SQLite database. # 21st March 2020, 4:27 am
Things I learned about shapefiles building shapefile-to-sqlite
The latest in my series of x-to-sqlite tools is shapefile-to-sqlite. I learned a whole bunch of things about the ESRI shapefile format while building it.
[... 1073 words]geojson-to-sqlite (via) I just put out the first release of geojson-to-sqlite—a CLI tool that can convert GeoJSON files (consisting of a Feature or a set of features in a FeatureCollection) into a table in a SQLite database. If you use the --spatialite option it will initalize the table with SpatiaLite and store the geometries in a spacially indexed geometry field—without that option it stores them as GeoJSON. # 31st January 2020, 6:40 am