สอบถามวิธีแก้ Eror ของ PL/SQL หน่อยครับ เริ่อง EXCEPTION การดัก Eror พอดี มีปัญหา

	open c1;
	loop
		fetch c1 into r1;
		exit when c1%notfound;
		V_ROW := V_ROW + 1;
		----
		DDE.Poke(ConvID, 'R' || V_ROW || 'C' || 1,  nvl(:MASTER.WEEK,' ')    ,  DDE.CF_TEXT, 1000);
		DDE.Poke(ConvID, 'R' || V_ROW || 'C' || 2,  nvl(R1.V_INSPECT_DATE,' ')       ,  DDE.CF_TEXT, 1000);
		DDE.Poke(ConvID, 'R' || V_ROW || 'C' || 3,  nvl(v_FTY,' ')       ,  DDE.CF_TEXT, 1000);
		DDE.Poke(ConvID, 'R' || V_ROW || 'C' || 4,  nvl(R1.V_SEWLINE,' ')       ,  DDE.CF_TEXT, 1000);
		DDE.Poke(ConvID, 'R' || V_ROW || 'C' || 5,  nvl(R1.V_NAME,' ')	    ,  DDE.CF_TEXT, 1000);
		DDE.Poke(ConvID, 'R' || V_ROW || 'C' || 6,  nvl(R1.V_CUNM,' ')       ,  DDE.CF_TEXT, 1000);
		DDE.Poke(ConvID, 'R' || V_ROW || 'C' || 7,  nvl(R1.V_STYLE,' ')       ,  DDE.CF_TEXT, 1000);
		DDE.Poke(ConvID, 'R' || V_ROW || 'C' || 8,  nvl(R1.V_INSPECT_QTY,' ')       ,  DDE.CF_TEXT, 1000);
		v_Pass := R1.V_INSPECT_QTY-R1.V_REJECT_QTY;
		DDE.Poke(ConvID, 'R' || V_ROW || 'C' || 9,  nvl(v_Pass,' ')       ,  DDE.CF_TEXT, 1000);
		DDE.Poke(ConvID, 'R' || V_ROW || 'C' || 10,  nvl(R1.V_REJECT_QTY,' ')       ,  DDE.CF_TEXT, 1000);
		DDE.Poke(ConvID, 'R' || V_ROW || 'C' || 12,  nvl(R1.V_DEFECT_QTY,' ')       ,  DDE.CF_TEXT, 1000);
		v_Passpercent := v_Pass / R1.V_INSPECT_QTY;
		DDE.Poke(ConvID, 'R' || V_ROW || 'C' || 13,  nvl(v_Passpercent,' ')       ,  DDE.CF_TEXT, 1000);
	    BEGIN 
			For X IN 1..32 Loop
 					SELECT   
       				 	 D.DEFECT_QTY INTO v_Total                        
					FROM   
								 QASYS.QC_INSPECT_DEFECT D
					WHERE	 D.SUB_DEFECT_ID		 	=	v_sub_Defect(X)
					AND		 D.INSPECT_HEADER_ID	= R1.V_INSPECT_HEADER_ID;
			EXCEPTION
				WHEN NO_DATA_FOUND THEN
				v_sub_Defect(X) :=0;
				END
			V_COL3 := V_COL3 + 1;
		DDE.Poke(ConvID, 'R' || V_ROW || 'C' || V_COL3,nvl(v_Total,' ')       ,  DDE.CF_TEXT, 1000);	
		DDE.Poke(ConvID, 'R' || 19 || 'C' || V_COL3,nvl(v_sub_Defect(X),' ')       ,  DDE.CF_TEXT, 1000);
		v_Total:=0;
		END Loop;
			V_COL3 := 18;
			END;
 		v_Pass				:= 0;
 		v_Passpercent	:= 0;
		----
		
		synchronize;
	end loop;
	close c1;