通過存儲過程傳遞參數

我是新的接口數據庫的應用程序，並試圖從數據庫中我指定的參數應過濾掉結果的幾個領域。我一直收到一個沒有參數或參數提供。任何人都可以對此有所瞭解嗎？謝謝。通過存儲過程傳遞參數

下面

是存儲過程：

ALTER PROC dbo.PassParamUserID 

AS 
set nocount on 
DECLARE @UserID int; 

SELECT f_Name, l_Name 
FROM tb_User 
WHERE tb_User.ID = @UserID;

這裏是我的代碼

class StoredProcedureDemo 
{ 
    static void Main() 
    { 
     StoredProcedureDemo spd = new StoredProcedureDemo(); 

     //run a simple stored procedure that takes a parameter 
     spd.RunStoredProcParams(); 
    } 

    public void RunStoredProcParams() 
    { 
     SqlConnection conn = null; 
     SqlDataReader rdr = null; 

     string ID = "2"; 

     Console.WriteLine("\n the customer full name is:"); 

     try 
     { 
      //create a new connection object 
      conn = new SqlConnection("Data Source=.\\SQLEXPRESS;AttachDbFilename=c:\\Program Files\\Microsoft SQL Server\\MSSQL10.SQLEXPRESS\\MSSQL\\DATA\\UserDB.mdf;Integrated Security=True;Connect Timeout=30;User Instance=True; Integrated Security=SSPI"); 
      conn.Open(); 

      //create command objects identifying the stored procedure 
      SqlCommand cmd = new SqlCommand("PassParamUserID", conn); 

      //Set the command object so it know to execute the stored procedure 
      cmd.CommandType = CommandType.StoredProcedure; 

      //ADD PARAMETERS TO COMMAND WHICH WILL BE PASSED TO STORED PROCEDURE 
      cmd.Parameters.Add(new SqlParameter("@UserID", 2)); 

      //execute the command 
      rdr = cmd.ExecuteReader(); 

      //iterate through results, printing each to console 
      while (rdr.Read()) 
      { 
       Console.WriteLine("First Name: {0,25} Last Name: {0,20}", rdr["f_Name"], rdr["l_Name"]); 
      } 
     }

來源

2011-01-11 jpavlov

您需要修改SQL存儲過程到：

ALTER PROC dbo.PassParamUserID 

@UserID int 

AS set nocount on 

SELECT f_Name, l_Name FROM tb_User WHERE tb_User.ID = @UserID;

此刻的你只是在程序中聲明它爲一個變量。

這裏有一些MSDN文章，可以幫助你前進：

Creating and Altering Stored procedures

Declaring Local Variables

來源

2011-01-11 18:16:38 codingbadger

謝謝。這工作。這是否意味着我在創建S_Proc時使用了DECLARE @UserID，然後在它進入Alter時將其更改爲@UserID？ – jpavlov 2011-01-11 18:20:01

ALTER PROC dbo.PassParamUserID (@UserID int) 

AS 
set nocount on 
SELECT f_Name, l_Name FROM tb_User WHERE tb_User.ID = @UserID;

如果你想傳遞參數在您需要的AS語句之前對其進行定義如上所示。

來源

2011-01-11 18:18:16 HLGEM

通過存儲過程傳遞參數

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