Sql Server 存储过程调用存储过程接收输出参数返回值

ALTER PROCEDURE [dbo].[GetCustomers] 
(@rowcount INT OUTPUT) 
AS  
  SELECT [CustomerID] 
   ,[CompanyName] 
   ,[ContactName] 
   ,[ContactTitle] 
   ,[Address] 
   ,[City] 
   ,[Region] 
   ,[PostalCode] 
   ,[Country] 
   ,[Phone] 
   ,[Fax] 
 FROM [Northwind].[dbo].[Customers] 
SET @rowcount=@@rowcount 

DECLARE @count INT 
EXECUTE GetCustomers @count OUTPUT 
PRINT @count  

ALTER PROCEDURE [dbo].[GetCustomers] 
AS  
  SELECT [CustomerID] 
   ,[CompanyName] 
   ,[ContactName] 
   ,[ContactTitle] 
   ,[Address] 
   ,[City] 
   ,[Region] 
   ,[PostalCode] 
   ,[Country] 
   ,[Phone] 
   ,[Fax] 
 FROM [Northwind].[dbo].[Customers] 
RETURN @@rowcount 

DECLARE @count INT 
EXECUTE @count=GetCustomers  
PRINT @count