USE NORTHWIND
-- we declare our table variable first
declare @SpecialCustomers TABLE (
CustomerID nchar (5) NOT NULL ,
OrderID int NOT NULL ,
ShipVia int NOT NULL,
Freight money NOT NULL)
-- now we populate the in-memory table variable with the record information needed for the update
insert into @SPecialCustomers select CustomerID, OrderID, ShipVia, Freight
from dbo.Orders where ShipVia =1 AND Freight >50.25
-- and finally we update the affected records in our regular orders table with our new shipper and price information,
-- using the @SpecialCustomers TABLE variable just as we would a real, physical table in the database:
UPDATE ORDERS SET ShipVia=4, Freight =21.00
where ORDERS.OrderID IN (SELECT ORDERID FROM @SpecialCustomers)
