Use Utility;
GO
IF EXISTS (SELECT * FROM sys.tables WHERE OBJECT_ID = OBJECT_ID(N'Inventory_Orders') AND type IN(N'U'))
DROP TABLE Inventory_Orders

CREATE TABLE Inventory_Orders
(
id_inv_order INT IDENTITY
, id_client INT NOT NULL
, product_number CHAR(20) NOT NULL
, qty INT NOT NULL CHECK (qty >= 0)
,order_date DATETIME DEFAULT GETDATE()
, CONSTRAINT PK_Inventory_Orders PRIMARY KEY (id_inv_order)
);