diff --git a/db/routines/bi/functions/nz.sql b/db/routines/bi/functions/nz.sql
deleted file mode 100644
index 0d047703a..000000000
--- a/db/routines/bi/functions/nz.sql
+++ /dev/null
@@ -1,16 +0,0 @@
-DELIMITER $$
-CREATE OR REPLACE DEFINER=`root`@`localhost` FUNCTION `bi`.`nz`(vData DOUBLE)
-	RETURNS double
-	DETERMINISTIC
-BEGIN
-/**
- * Devuelve 0, si el parámetro es NULL:
- */  
-	DECLARE vResult  DOUBLE;
-	
-	SET vResult = IFNULL(vData,0);
-
-	RETURN vResult;
-
-END$$
-DELIMITER ;
diff --git a/db/routines/bi/procedures/claim_ratio_routine.sql b/db/routines/bi/procedures/claim_ratio_routine.sql
index 4616bcb9e..e5a5310b4 100644
--- a/db/routines/bi/procedures/claim_ratio_routine.sql
+++ b/db/routines/bi/procedures/claim_ratio_routine.sql
@@ -130,13 +130,13 @@ BEGIN
 	-- Calculamos el porcentaje del recobro para añadirlo al precio de venta
 	UPDATE bi.claims_ratio cr
 				JOIN (
-					SELECT Id_Cliente, nz(SUM(Importe)) AS Greuge
+					SELECT Id_Cliente, IFNULL(SUM(Importe), 0) AS Greuge
 						FROM vn2008.Greuges
 						WHERE Fecha <= util.VN_CURDATE()
 						GROUP BY Id_Cliente
 					) g ON g.Id_Cliente = cr.Id_Cliente
-			SET recobro = GREATEST(0,round(nz(Greuge) /
-				(nz(Consumo) * vMonthToRefund / 12 ) ,3));
+			SET recobro = GREATEST(0,round(IFNULL(Greuge, 0) /
+				(IFNULL(Consumo, 0) * vMonthToRefund / 12 ) ,3));
 
 	-- Protección neonatos
 	UPDATE bi.claims_ratio cr
diff --git a/db/routines/vn/functions/nz.sql b/db/routines/vn/functions/nz.sql
deleted file mode 100644
index 71c017b78..000000000
--- a/db/routines/vn/functions/nz.sql
+++ /dev/null
@@ -1,14 +0,0 @@
-DELIMITER $$
-CREATE OR REPLACE DEFINER=`root`@`localhost` FUNCTION `vn`.`nz`(vQuantity DOUBLE)
-	RETURNS double
-	DETERMINISTIC
-BEGIN
-
-	DECLARE vResult DOUBLE;
-
-	SET vResult = IFNULL(vQuantity,0);
-
-	RETURN vResult;
-
-END$$
-DELIMITER ;
diff --git a/db/routines/vn/procedures/client_checkBalance.sql b/db/routines/vn/procedures/client_checkBalance.sql
index ca8792ba4..210fcc00f 100644
--- a/db/routines/vn/procedures/client_checkBalance.sql
+++ b/db/routines/vn/procedures/client_checkBalance.sql
@@ -48,7 +48,7 @@ BEGIN
 							SELECT lc.companyFk,
 									c.id,
 									0,
-									- (NZ(lc.credit) - NZ(lc.debit))
+									- (IFNULL(lc.credit, 0) - IFNULL(lc.debit, 0))
 								FROM tmp.ledgerComparative lc
 									JOIN client c ON c.accountingAccount = lc.account
 								WHERE lc.`date` BETWEEN vDateFrom AND vDateTo
diff --git a/db/routines/vn/procedures/supplier_checkBalance.sql b/db/routines/vn/procedures/supplier_checkBalance.sql
index 5248b4cec..04c513927 100644
--- a/db/routines/vn/procedures/supplier_checkBalance.sql
+++ b/db/routines/vn/procedures/supplier_checkBalance.sql
@@ -60,7 +60,7 @@ BEGIN
 								SELECT lc.companyFk,
 										s.id,
 										0,
-										- (NZ(lc.debit) - NZ(lc.credit))
+										- (IFNULL(lc.debit, 0) - IFNULL(lc.credit, 0))
 									FROM tmp.ledgerComparative lc
 										JOIN supplier s ON s.account = lc.account
 									WHERE lc.`date` BETWEEN vDateFrom AND vDateTo
diff --git a/db/routines/vn/triggers/expedition_beforeInsert.sql b/db/routines/vn/triggers/expedition_beforeInsert.sql
index a7fa029b4..685de72cb 100644
--- a/db/routines/vn/triggers/expedition_beforeInsert.sql
+++ b/db/routines/vn/triggers/expedition_beforeInsert.sql
@@ -4,22 +4,22 @@ CREATE OR REPLACE DEFINER=`root`@`localhost` TRIGGER `vn`.`expedition_beforeInse
 	FOR EACH ROW
 BEGIN
 	DECLARE intcounter INT;
-    DECLARE vShipFk INT;
+	DECLARE vShipFk INT;
 
 	SET NEW.editorFk = account.myUser_getId();
 
 	IF NEW.freightItemFk IS NOT NULL THEN 
 
-		UPDATE ticket SET packages = nz(packages) + 1 WHERE id = NEW.ticketFk;
+		UPDATE ticket SET packages = IFNULL(packages, 0) + 1 WHERE id = NEW.ticketFk;
 
 		SELECT IFNULL(MAX(counter),0) +1 INTO intcounter 
-            FROM expedition e 
+			FROM expedition e 
 				INNER JOIN ticket t1 ON e.ticketFk = t1.id 
-                LEFT JOIN ticketState ts ON ts.ticketFk = t1.id
+				LEFT JOIN ticketState ts ON ts.ticketFk = t1.id
 				INNER JOIN ticket t2 ON t2.addressFk = t1.addressFk AND DATE(t2.shipped) = DATE(t1.shipped) 
-                    AND t1.warehouseFk = t2.warehouseFk
+					AND t1.warehouseFk = t2.warehouseFk
 			WHERE t2.id = NEW.ticketFk AND ts.alertLevel < 3 AND t1.companyFk = t2.companyFk 
-                AND t1.agencyModeFk = t2.agencyModeFk;
+				AND t1.agencyModeFk = t2.agencyModeFk;
 
 		SET NEW.`counter` = intcounter;
 	END IF;
diff --git a/db/routines/vn2008/functions/nz.sql b/db/routines/vn2008/functions/nz.sql
deleted file mode 100644
index 3ca911052..000000000
--- a/db/routines/vn2008/functions/nz.sql
+++ /dev/null
@@ -1,14 +0,0 @@
-DELIMITER $$
-CREATE OR REPLACE DEFINER=`root`@`localhost` FUNCTION `vn2008`.`nz`(dblCANTIDAD DOUBLE)
-	RETURNS double
-	DETERMINISTIC
-BEGIN
-
-	DECLARE dblRESULT DOUBLE;
-
-	SET dblRESULT = IFNULL(dblCANTIDAD,0);
-
-	RETURN dblRESULT;
-
-END$$
-DELIMITER ;