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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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[–] redcalcium@lemmy.institute 23 points 1 year ago (1 children)

Periodic, versioned backups are the ultimate defense against bugs.

[–] Aganim@lemmy.world 34 points 1 year ago (2 children)

Periodic, versioned and tested backups.

It absolutely, totally, never ever happened to me that I had a bunch of backups available that turned out to be effectively unrestorable the moment I needed them. 😭

[–] redcalcium@lemmy.institute 10 points 1 year ago

The worse feeling than realizing you don't have backup is realizing your backup archives are useless.

[–] nous@programming.dev 9 points 1 year ago

Or like that time gitlab found out that none of its 5 backup/replications worked and lost 6 hours of data.