php - Is it possible to do a find function in SQL? -

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i'm looking this:

let's have string..

$chk="pie";

and want find in database string $chk in it..

say database looks this:

username realname 123pieo  bob ilikepie carl wat      tom

can select ones contain $chk in them how?

this select rows contain "pie" in username.

select * tablename username "%pie%"

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