private ["_pid","_query","_verifyUser"];

_pid = getPlayerUID player;

_query = format["SELECT * FROM instructors WHERE pid='%1'", _pid];



_verifyUser = "Arma2Net.Unmanaged" callExtension format ["Arma2NETMySQLCommandAsync ['training', '%1']", _query];

if(_pid == _verifyUser) then {

    hint "You are an Instructor!";

};