도와주세요

그누보드와 p뱅킹을 연동하려고합니다.
테이블 생성파일인거같은데 업로드하고 보니 에러가납니다.
<?
include '_common.php';

$sql = 'CREATE TABLE '.$cb_DBprefix.'Bank_Cash (';
$sql .= ' idx timestamp NOT NULL, ';
$sql .= ' trans_id varchar(50) NOT NULL, ';
$sql .= ' good_code varchar(50), ';
$sql .= ' good_name varchar(50), ';
$sql .= ' usr_id varchar(50) NOT NULL, ';
$sql .= ' usr_memo varchar(50), ';
$sql .= ' pay_pg varchar(5), ';
$sql .= ' pay_price int NOT NULL default 0, ';
$sql .= ' pb_usrid varchar(10), ';
$sql .= ' pb_abook varchar(15), ';
$sql .= ' pb_bbook varchar(15), ';
$sql .= ' add_data3 varchar(255), ';
$sql .= ' add_data4 varchar(255), ';
$sql .= ' add_data5 varchar(255), ';
$sql .= ' add_data6 varchar(255), ';
$sql .= ' add_data7 varchar(255), ';
$sql .= ' add_data8 varchar(255), ';
$sql .= ' add_data9 varchar(255), ';
$sql .= ' cp_id varchar(10), ';
$sql .= ' reg_date datetime ';
$sql .= ' chkurl varchar(100), ';
$sql .= ' PRIMARY KEY (idx) )';
$result = sql_query($sql);

echo "<script>alert('Cash 테이블 생성 완료~~ (~^ㅠ^)~♡ 짜미 됴아??');location.href='".$cb_path."';</script>";
?>

웹에서 보면 이런 에러가납니다.

Warning: include(_common.php) [function.include]: failed to open stream: No such file or directory in /host/home/ago99999/html/pbank4gnu/mkcashtable.php on line 2

Warning: include(_common.php) [function.include]: failed to open stream: No such file or directory in /host/home/ago99999/html/pbank4gnu/mkcashtable.php on line 2

Warning: include() [function.include]: Failed opening '_common.php' for inclusion (include_path='.:/usr/local/lib/php') in /host/home/ago99999/html/pbank4gnu/mkcashtable.php on line 2

Fatal error: Call to undefined function sql_query() in /host/home/ago99999/html/pbank4gnu/mkcashtable.php on line 27

왜 이런거죠? 도와주세요 ㅠㅠ