Call to a member function fetch () on a non-object exception

Call to a member function fetch () on a non-object error
try{
$DSN = "Mysql:host=localhost;dbname=db_upan";
$db = new PDO ($DSN, "root", "");
$sql = "Select * Form Tb_uptype";
$statement = $db->query ($sql);
while ($result = $statement->fetch (PDO::FETCH_ASSOC)) {
echo $result [' genrename '];
}
$DB = null;
}catch (Pdoexception $e) {
echo "error occurred. ";
}
Code as above: prompt error when running fatal Error:call to a member function fetch () on a non-object in C:\xampp\htdocs\upan\test.php on line 7;
Excuse me, what is the reason? Wait...

------Solution--------------------
$sql = "SELECT * from Tb_uptype";
------Solution--------------------
$sql = "Select * Form Tb_uptype";
should be for
$sql = "SELECT * from Tb_uptype";

The SQL command is wrong, and the natural successor code is error.

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