diff --git a/db/routines/vn/procedures/multipleInventory.sql b/db/routines/vn/procedures/multipleInventory.sql
index dc34f040e..582baf4dd 100644
--- a/db/routines/vn/procedures/multipleInventory.sql
+++ b/db/routines/vn/procedures/multipleInventory.sql
@@ -139,31 +139,35 @@ proc: BEGIN
 	CALL item_getAtp(vDate);
 	CALL travel_upcomingArrivals(vWarehouseFk, vDate);
 
-	UPDATE tmp.itemInventory ai
-			JOIN (
-				SELECT it.itemFk,
-						SUM(it.quantity) quantity,
-						im.quantity minQuantity
-					FROM tmp.itemCalc it
-						JOIN tmp.itemAtp im ON im.itemFk = it.itemFk
-						JOIN item i ON  i.id = it.itemFk
-						LEFT JOIN origin o ON o.id = i.originFk
-						LEFT JOIN tmp.itemTravel t ON t.wh = o.warehouseFk
-					WHERE it.dated < IF(vMaxDays < 0 AND t.landing IS NOT NULL,
-									t.landing,
-									vDateToTomorrow)
-					GROUP BY it.itemFk
-			) sub ON sub.itemFk = ai.id
-		SET ai.avalaible = IF(sub.minQuantity > 0,
-				ai.avalaible,
-				ai.avalaible + sub.minQuantity),
-			ai.sd = ai.inventory + sub.quantity;
+	CREATE OR REPLACE TEMPORARY TABLE tItemAvailableCalc
+		(PRIMARY KEY (itemFk))
+		ENGINE = MEMORY
+		SELECT it.itemFk,
+				SUM(it.quantity) quantity,
+				im.quantity minQuantity
+			FROM tmp.itemCalc it
+				JOIN tmp.itemAtp im ON im.itemFk = it.itemFk
+				JOIN item i ON  i.id = it.itemFk
+				LEFT JOIN origin o ON o.id = i.originFk
+				LEFT JOIN tmp.itemTravel t ON t.wh = o.warehouseFk
+			WHERE it.dated < IF(vMaxDays < 0 AND t.landing IS NOT NULL,
+							t.landing,
+							vDateToTomorrow)
+			GROUP BY it.itemFk;
+
+	UPDATE tmp.itemInventory it
+			JOIN tItemAvailableCalc iac ON iac.itemFk = it.id
+		SET it.avalaible = IF(iac.minQuantity > 0,
+				it.avalaible,
+				it.avalaible + iac.minQuantity),
+			it.sd = it.inventory + iac.quantity;
 
 	DROP TEMPORARY TABLE
 		tmp.itemTravel,
 		tmp.itemCalc,
 		tmp.itemAtp,
 		tItemInventoryCalc,
-		tItemVisibleCalc;
+		tItemVisibleCalc,
+		tItemAvailableCalc;
 END$$
 DELIMITER ;