[newbie scripter]

pawn Код:

CheckAccountExist(playerid, account[])
{
    if(IsPlayerNPC(playerid)) return 0;
    new Query[90];
    format(Query, sizeof(Query), "SELECT * FROM `playerdata` WHERE Username='%s'", account);
   mysql_tquery(conn, Query, true, "CheckAccount", "is", playerid, account);
    return 1;
}