สอบถามปัญหาเกี่ยวกับการดึงข้อมูลจาก DB1 ลง DB2 อย่างไรครับ

<? include("connectdb.php");
		$strSQLdb = "select * from configdb limit 1";
		$objQuerydb = mysql_query($strSQLdb);
		$objResultdb = mysql_fetch_array($objQuerydb);
		$db1 = $objResultdb['configdb_host'];
		$db2 = $objResultdb['configdb_user'];
		$db3 = $objResultdb['configdb_pass'];
		$db4 = $objResultdb['configdb_db'];
		$db5 = $objResultdb['configdb_hospcode'];
				
		$objConnecthos = mysql_connect("$db1","$db2","$db3") or die("Error Connect to Database");
		$objDBhos = mysql_select_db("$db4");
		mysql_query("SET NAMES UTF8");
			
		$strSQL = "select '".$db5."',p.cid,o.hn,o.vstdate,s.bmi,concat(p.pname,' ',p.fname,' ',p.lname)as fullname  
				from ovst o
left outer join vn_stat v on v.vn = o.vn
left outer join patient p on p.hn = o.hn
left outer join opdscreen s on s.vn = o.vn
where o.vstdate between '".$_GET["date1"]."' and '".$_GET["date2"]."'
and ((v.pdx >= 'J44' and v.pdx <= 'J449')
or (v.dx0 >= 'J44' and v.dx0 <= 'J449')
or (v.dx1 >= 'J44' and v.dx1 <= 'J449')
or (v.dx2 >= 'J44' and v.dx2 <= 'J449')
or (v.dx3 >= 'J44' and v.dx3 <= 'J449')
or (v.dx4 >= 'J44' and v.dx4 <= 'J449')
or (v.dx5 >= 'J44' and v.dx5 <= 'J449'))";
				$objQuery = mysql_query($strSQL);
				while($objResult = mysql_fetch_array($objQuery))
				{ $i++;
				
			$strSQL1 = "INSERT INTO copd_detail ";
			$strSQL1 .=" (ID,HCODE,PID,HN,SVDDATE,BMI) ";
			$strSQL1 .=" VALUES (NULL,'".$db5."','".$objResult["cid"]."','00".$objResult["hn"]."','".$objResult["vstdate"]."','".round($objResult["bmi"],2)."') ";
			$objQuery1 = mysql_query($strSQL1);
			
				}
		
		echo "นำเข้าข้อมูลจำนวน " .$i." ราย เสร็จสิ้น";
        ?>