node-sqlite | SQLite client for Node.js applications | Data Migration library
kandi X-RAY | node-sqlite Summary
kandi X-RAY | node-sqlite Summary
SQLite client for Node.js applications with SQL-based migrations API written in Typescript
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Trending Discussions on node-sqlite
QUESTION
I've been trying to download sqlite3@4.2.0
, however it's been giving me an error. Here are the logs when trying to run npm install
:
ANSWER
Answered 2021-Jun-10 at 23:55For fixing the errors try the following :
clean the npm cache
QUESTION
I'm using better-sqlite3 on Node
, but I suspect my questions are applicable to node-sqlite3 as well.
I basically have 2 simple questions, relating to a server-rendered website:
Do I need to explicitly call
.close()
on the database? I seem to remember reading somewhere that it will automatically close when the current scope (like the current function) exits. What if I never call.close()
in a web server scenario, taking a lot of requests?If you have a bunch of different components (authentication, authorisation, localisation, payment, etc...) and each component may or may not need to access the database throughout the lifetime of a request (which are quite short-lived, except for payment), is it better to
- have one db connection for the lifetime of the server and pass that around
- have one db connection for the lifetime of the request and pass that around
- open a new connection every time I need something, maybe 2-3 times per request (and close it either explicitly or implicitly when the function returns, if that's a thing)
Thank you
...ANSWER
Answered 2021-Apr-03 at 18:39Joshua Wise's (better-sqlite3
's creator) answer over on GitHub:
Database connections are automatically closed when they are garbage collected, which is non-deterministic. If you want to know that the connection is closed (rather than guessing), you should call .close().
You can just open one database connection for the entire thread (the entire process if you're not using worker threads), and share that connection between every request. Node.js is single-threaded, so you don't have to worry about simultaneous access, even if multiple requests are being handled concurrently. The one caveat is that you should never have a SQLite transaction open across multiple ticks of the event loop (i.e., don't use await between BEGIN and COMMIT), because then other requests could accidentally inject SQL into your transactions. Also, SQLite transactions are serialized (you can't have more than one at a time), so you should open and close them as quickly as possible; keeping them open across ticks of the event loop is bad for performance.
QUESTION
I want to install pyproj on Debian on Docker.
This is my script:
...ANSWER
Answered 2020-Nov-11 at 21:15https://pyproj4.github.io/pyproj/stable/installation.html
I would recommend either:
- Upgrade to pip>=19 so PROJ 7.2 is in the wheel.
ENV PROJ_DIR=/path/to/proj/install
and when you install PROJ:./configure --prefix $PROJ_DIR
QUESTION
I'm programming a website to search in a sqlite database. I'm using node-sqlite3 in my backend, this is my code.
...ANSWER
Answered 2020-Sep-01 at 09:57So, I created a sorting function to sort it right after running the query and getting the results. I reported this issue to the github repository. This is the sorting function.
QUESTION
I'm struggling with some basic async/await problem in node.js using node-sqlite3.
My objective is to select some value from SQLite DB, check it for some condition and take some actions in case the condition is met. Here's the code:
ANSWER
Answered 2020-Jun-18 at 19:17Since you want to use async/await
, and the node-sqlite3 (sqlite3) library does not support the Promise API, you need to use the node-sqlite (sqlite) library, which is a wrapper over sqlite3
and adds support for the Promise API. Then, your code will look something like this:
QUESTION
I'm using node v14.2 and sqlite3: https://github.com/mapbox/node-sqlite3
I'm trying to determine if a table exists, and if it does, make a query against it. I've tried:
...ANSWER
Answered 2020-May-20 at 05:24The issue I see in your code is, the console.log is outside of the callback function.
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