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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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[-] myersguy@lemmy.simpl.website 26 points 1 year ago

MySQL (and by extension, MariaDB) has an even better option:

mysql --i-am-a-dummy

[-] tau@lemmings.world 5 points 1 year ago

Amazing! These are going in my.conf ASAP.

this post was submitted on 11 Oct 2023

364 points (97.6% liked)

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