Items tagged sqlite in Feb, 2024
Filters: Year: 2024 × Month: Feb × sqlite × Sorted by date
Datasette 1.0a10. The only changes in this alpha release concern the way Datasette handles database transactions. The database.execute_write_fn() internal method used to leave functions to implement transactions on their own—it now defaults to wrapping them in a transaction unless they opt out with the new transaction=False parameter.
In implementing this I found several places inside Datasette—in particular parts of the JSON write API—which had not been handling transactions correctly. Those are all now fixed. # 18th February 2024, 5:10 am
wddbfs – Mount a sqlite database as a filesystem. Ingenious hack from Adam Obeng. Install this Python tool and run it against a SQLite database:
wddbfs --anonymous --db-path path/to/content.db
Then tell the macOS Finder to connect to Go -> Connect to Server -> http://127.0.0.1:8080/ (connect as guest)—connecting via WebDAV.
/Volumes/127.0.0.1/content.db will now be a folder full of CSV, TSV, JSON and JSONL files—one of each format for every table.
This means you can open data from SQLite directly in any application that supports that format, and you can even run CLI commands such as grep, ripgrep or jq directly against the data!
Adam used WebDAV because “Despite how clunky it is, this seems to be the best way to implement a filesystem given that getting FUSE support is not straightforward”. What a neat trick. # 18th February 2024, 3:31 am
Announcing DuckDB 0.10.0. Somewhat buried in this announcement: DuckDB has Fixed-Length Arrays now, along with array_cross_product(a1, a2), array_cosine_similarity(a1, a2) and array_inner_product(a1, a2) functions.
This means you can now use DuckDB to find related content (and other tricks) using vector embeddings!
Also notable: “DuckDB can now attach MySQL, Postgres, and SQLite databases in addition to databases stored in its own format. This allows data to be read into DuckDB and moved between these systems in a convenient manner, as attached databases are fully functional, appear just as regular tables, and can be updated in a safe, transactional manner.” # 13th February 2024, 5:57 pm
SQL for Data Scientists in 100 Queries. New comprehensive SQLite SQL tutorial from Greg Wilson, author of Teaching Tech Together and founder of The Carpentries. # 6th February 2024, 11:08 pm