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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 drekly@lemmy.world to c/programming@programming.dev

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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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[-] rodolfo@lemmy.world 8 points 1 year ago

you could use dbeaver that warns you for update and delete queries without a where clause, independently of the db system. I hope the functionality it's still there since, for totally unrelated motivations, I always use a where clause, even when buying groceries.

this post was submitted on 11 Oct 2023

364 points (97.6% liked)

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