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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 11 months ago* (last edited 11 months 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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[–] aravindan_v@programming.dev 2 points 11 months ago (1 children)

If you're asking about the information about the number of rows, oracle db clients do that. For nodejs, oracle's library will provide this number in the response to a dml statement execution. So you can retrieve it in your backend code. You have to write additional code to bring this message to the front-end.

https://oracle.github.io/node-oracledb/

[–] drekly@lemmy.world 1 points 11 months ago

Awesome, thanks for the info. Definitely super useful for debug mode whilst I'm fixing and tampering!