มีปัญหาเรื่อง select ข้อมูลค่ะ select ออกมาแล้วไม่ตรงกับที่ต้องการ

<?
	 	$strSQL2 = "select tblreportchecklearndetail.*,tblreportchecklearnmain.*,tblsubject.* ,tblteacherhis.*,estimate.*
		from tblreportchecklearndetail,tblreportchecklearnmain,tblsubject,tblteacherhis,estimate
		where 1 
		and tblreportchecklearndetail.RCLNo=tblreportchecklearnmain.RCLNo
		and tblreportchecklearnmain.SubNo=tblsubject.SubNo
		and tblreportchecklearnmain.TeacherNo=tblteacherhis.TeacherNo
		and tblreportchecklearnmain.TermYear='1/2555'
		and tblreportchecklearndetail.StdNo=$StdNo
		and estimate.RCLNo=tblreportchecklearnmain.RCLNo";////////ส่วนที่เพิ่ม///////
		$objQuery2 = mysql_query($strSQL2) or die ("Error Query [".$strSQL2."]");
	  ?>

<?
	 	$strSQL2 = "select tblreportchecklearndetail.*,tblreportchecklearnmain.*,tblsubject.* ,tblteacherhis.*
		from tblreportchecklearndetail,tblreportchecklearnmain,tblsubject,tblteacherhis
		where 1 
		and tblreportchecklearndetail.RCLNo=tblreportchecklearnmain.RCLNo
		and tblreportchecklearnmain.SubNo=tblsubject.SubNo
		and tblreportchecklearnmain.TeacherNo=tblteacherhis.TeacherNo
		and tblreportchecklearnmain.TermYear='1/2555'
		and tblreportchecklearndetail.StdNo=$StdNo";
		$objQuery2 = mysql_query($strSQL2) or die ("Error Query [".$strSQL2."]");
	  ?>