WordPress Query doesn’t return the correct value

As it turns out, WordPress actually checks to see if the data posted matches existing data, if so, don’t do anything and return false.

I was clicking my update button expecting it to just update in the database regardless, but it’s not the case:

enter image description here

Taken from here

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Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)