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I tried to update the column visited to give it the value 1.

UPDATE tablename SET columnname=1;

Error:

You are using safe update mode and you tried to update a table without a WHERE that uses a KEY column To disable safe mode, toggle the option ....

1 Answer

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by (11.1k points)
edited by

Instead of

UPDATE tablename SET columnname=1;

try this

SET SQL_SAFE_UPDATES = 0;

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