this post was submitted on 06 Sep 2024
14 points (81.8% liked)
Programming
17398 readers
103 users here now
Welcome to the main community in programming.dev! Feel free to post anything relating to programming here!
Cross posting is strongly encouraged in the instance. If you feel your post or another person's post makes sense in another community cross post into it.
Hope you enjoy the instance!
Rules
Rules
- Follow the programming.dev instance rules
- Keep content related to programming in some way
- If you're posting long videos try to add in some form of tldr for those who don't want to watch videos
Wormhole
Follow the wormhole through a path of communities !webdev@programming.dev
founded 1 year ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
Been a little while since I worked on ODBC stuff, but I have a couple of thoughts:
Would it be possible to use something like a table function on the DB side to simplify the query from the ODBC side?
I could be misremembering, but I feel like looping through individual inserts with an open connection was faster than trying to submit data in bulk when inserting that much data in one shot. Might be worth doing a benchmark in a test DB and table to confirm.
I know I was able to insert more than 50M rows in a manner of single digit hours, but unfortunately don't have access to that codebase anymore to double check the specifics.
Looping single inserts over an open connection is far far slower than a bulk insert because every row is another transaction.
Only thing it’s faster than is if you opened and closed a connection for each row.