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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 1 year ago* (last edited 1 year ago) by [email protected] to c/[email protected]

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"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.

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[–] [email protected] 8 points 1 year ago (2 children)

Fuck that, get shit housed and still do it right. That's a pro.

[–] [email protected] 19 points 1 year ago (1 children)

That's not pro, that's just reckless gambling.

[–] [email protected] 3 points 1 year ago

Totally right! You must set yourself up so a fool can run in prod and produce the expected result. Which is the purpose of a test env.

[–] [email protected] 0 points 1 year ago* (last edited 1 year ago)

Replied hastily, but the way to run db statements in prod while dealing with sleep deprivation and drinking too much is to run it a bunch in several test env scenarios so you're just copy pasting to prod and it CAN confidently be done. Also enable transactions and determine several, valid smoke tests.

Edit: a -> several