356
I accidentally removed the WHERE clause from my SQL query in a personal tool. Every row is now the same. I overwrote 206,000+ rows. I have no backup, I am stupid. (lemmy.world)
submitted 11 months ago* (last edited 11 months ago) by drekly@lemmy.world to c/programming@programming.dev
114 comments fedilink hide all child comments

"UPDATE table_name SET w = $1, x = $2, z = $4 WHERE y = $3 RETURNING *",

does not do the same as

"UPDATE table_name SET w = $1, x = $2, y = $3, z = $4 RETURNING *",

It's 2 am and my mind blanked out the WHERE, and just wanted the numbers neatly in order of 1234.

idiot.

FML.

you are viewing a single comment's thread
view the rest of the comments
[-] finestnothing@lemmy.world 71 points 11 months ago

Pro tip: transactions are your friend

[-] Aurenkin@sh.itjust.works 22 points 11 months ago

Completely agree, transactions are amazing for this kind of thing. In a previous team we also had a policy of always pairing if you need to do any db surgery in prod so you have a second pair of eyes + rubber duck to explain what you're doing.

[-] tomorrow_famous@feddit.uk 2 points 11 months ago

They are - until you leave them open and go home....

[-] finestnothing@lemmy.world 1 points 11 months ago

Temporarily locked overnight >>> broken stuff in prod

[-] fmstrat@lemmy.nowsci.com 1 points 11 months ago

This is the way.

this post was submitted on 11 Oct 2023
356 points (97.8% liked)

Programming

17025 readers
184 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
snowe@programming.dev
Ategon@programming.dev
MaungaHikoi@lemmy.nz