Question

What MySQL returns if the search string is not in the list of strings provided as argument in FIELD() function?

Answer 1

$\huge \mathbb{Answer}$

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▶Is it possible to search a whole database tables ( row and column) to find out a particular string.

I am having a Database named A with about 35 tables,i need to search for the string named "hello" and i dont know on which table this string is saved.Is it possible?

Using MySQL

i am a linux admin and i am not familiar with databases,it would be really helpful if u can explain the query also.