(PHP+Oracle+BLOB) ORA-00947: มีค่าไม่เพียงพอ คืออะไรบอกหน่อย Warning: oci_execute() [function.oci-execute]: ORA-00947: มีค่าไม่เพียงพอ in

<?php
if (!isset($LEID)) exit;
	include_once( "../../common/db_variable.php");
	$CanEditAll=False;
	if ($UserType==9) $CanEditAll=True;
	if ($UserType==2) {
		$getrq1=oci_parse($dblink,"SELECT COUNT(REFID) TEACH FROM T5_COURSE_INST WHERE USERID=$UserID AND COURSEID=$WKID");oci_execute($getrq1);
		$GetRight=oci_fetch_array($getrq1);
		If ($GetRight["TEACH"]>0) $CanEditAll=True;
	}

	if (isset($DeleteMessage) and ($MessageID>0))
	{
		if ((UserType==2) or ($UserType==9)) oci_execute(oci_parse($dblink,"DELETE FROM T5_TASKDISCUS WHERE MESSAGEID=$MessageID"));
		else oci_execute(oci_parse($dblink,"DELETE FROM T5_TASKDISCUS WHERE MESSAGEID=$MessageID AND USERID=$UserID"));
	}
	if (isset($Send))
	{
		$fileName=NULL;
		$data=NULL;
		$fileType=NULL;
		$fileSize=0;
		if (is_uploaded_file($HTTP_POST_FILES['Attfile']['tmp_name']))
		{
			$fileName=$HTTP_POST_FILES['Attfile']['name'];
			$fileTempName=$HTTP_POST_FILES['Attfile']['tmp_name'];
			$fileSize=$HTTP_POST_FILES['Attfile']['size'];
			$fileType=$HTTP_POST_FILES['Attfile']['type'];
			if (($fileSize<=$maxupload_file_size) and ($fileSize>0))
			{
				$fp = fopen($fileTempName,"r");
				$data=fread($fp,filesize($fileTempName));
				//$data=addslashes($data);
				fclose($fp);
			}else {
				$fileName=NULL;
				$data=NULL;
				$fileType=NULL;
				$fileSize=0;
			}
			
		}

		$Message=trim(text2db($Message));
		$on2=oci_new_descriptor($dblink, OCI_D_LOB);
		if ($MessageID==0) {
			
			$sql="INSERT INTO T5_TASKDISCUS (COURSEID, LEID, TEAMID, USERID, MESSAGE, ATTFILE, ATTFILENAME, ATTFILESIZE, ATTFILETYPE, SUBMITDATE, FROMIP) "; 
			$sql.="VALUES($WKID, $LEID, $TeamID, $UserID,'$Message', EMPTRY_BLOB(), '$fileName', $fileSize, '$fileType', SYSDATE), '$IPs') RETURNING ATTFILE INTO :ATT";
			}
		else 
			{
			if (($fileName<>NULL) and ($fileName<>""))
				$sql="UPDATE T5_TASKDISCUS SET MESSAGE='$Message', ATTFILE=EMPTRY_BLOB(), ATTFILENAM='$fileName', ATTFILETYPE='$fileType', ATTFILESIZE=$fileSize WHERE MESSAGEID=$MessageID RETURNING ATTFILE INTO :ATT";
			else $sql="UPDATE T5_TASKDISCUS SET MESSAGE='$Message' WHERE MESSAGEID=$MessageID";
			}
			
		if ((trim($Message)<>"") or (trim($fileName)<>"")) 
		
			if($data==NULL){
				$psql=oci_parse($dblink,$sql);
				oci_execute($psql, OCI_DEFAULT);
			}else{
				$psql=oci_parse($dblink,$sql);
				oci_bind_by_name($psql, ':ATT',$on2, -1, OCI_B_BLOB);
				oci_execute($psql,OCI_DEFAULT);
				$on2->save($data);
			}
		//echo "<Script language=\"JavaScript\">window.location.replace('".$SCRIPT_NAME."?LEID=$LEID&TeamID=$TeamID');</SCRIPT>";
	} // end Save
	
?>