存儲過程同時具有輸入和輸出參數

Question

我有一個3列的表：username,password和permission。我試圖編寫一個存儲過程來接受@username作爲輸入參數，然後輸出參數@permission。我該怎麼做呢？

Answer 1

更多可能是必要的，但根據你的問題，這是代碼：

CREATE PROCEDURE [dbo].[GetPermission] 
    @userName varchar(50), 
    @permission int output 
AS 
BEGIN 

    select @permission = PERMISSION from USERS where UserName = @userName 

END; 

編輯：

另一種選擇是創建一個功能，例如：

CREATE FUNCTION [dbo].[GetPermission](@userName [varchar(50)]) 
RETURNS [int] 
AS 
BEGIN 

    declare @permission int 

    select @permission = PERMISSION from USERS where UserName = @userName 

    return @permission 

END; 

Answer 2

只需添加到Gustavo F點，輸出參數的ParameterDirection應設置爲ParameterDirection.Output。

http://msdn.microsoft.com/en-us/library/system.data.sqlclient.sqlparameter.direction%28v=vs.110%29.aspx

Answer 3

CREATE PROC SP_ORDERS AS BEGIN SELECT DISTINCT E.EmployeeID,E.FirstName+SPACE(3)+E.LastName AS CUTNAME,E.City,ET.TerritoryDescription,P.ProductName, OD.Discount,SUM(OD.Quantity*OD.UnitPrice)AS TOTAL FROM [DimOrder Details] OD JOIN DimOrders O ON OD.OrderID=O.OrderID JOIN DimProducts P ON OD.ProductID=P.ProductID JOIN DimEmployees E ON O.EmployeeID=E.EmployeeID JOIN DimCustomers C ON O.CustomerID=C.CustomerID JOIN DimEmployeeTerritories ET ON E.EmployeeID=ET.EmployeeID GROUP BY E.EmployeeID,E.FirstName,E.LastName,E.City,ET.TerritoryDescription,P.ProductName,OD.Discount END