SQL Server - 将变量传递给存储过程时遇到问题

我知道这是一个基本问题 - 但我无法找到完成此任务的正确方法。

我需要将变量传递给 SQL Server 2008 存储过程并返回查询。

这是存储过程：

CREATE PROCEDURE pOrders
AS
    DECLARE @enteredClientID varchar(20);
    DECLARE @Results table (ClientID varchar(20), Num_orders int);
BEGIN
    SET NOCOUNT ON;

    -- Get all the order from the client
    INSERT INTO @Results
      SELECT ClientID, sum(Num_orders)
      FROM Orders O
      WHERE O.ClientID = @enteredClientID
      GROUP BY O.ClientID);

    -- Insert the orders into the results table --
    SELECT *
    FROM @Results;

END
GO;

现在，我将执行存储过程并获取结果：

exec pOrders
set @enteredClientID = 'ABC123456789'

我收到此错误消息：

必须声明标量变量“@enteredClientID”。

但是，我正在声明变量......我错过了什么？

您没有声明参数，而是声明局部变量。要按照您的意愿声明它：

CREATE PROCEDURE pOrders (@enteredClientID varchar(20))
AS
    DECLARE @Results table (ClientID varchar(20), Num_orders int);

    SET NOCOUNT ON;

    -- Get all the order from the client
    INSERT INTO @Results
    SELECT ClientID, sum(Num_orders)
    FROM Orders O
    WHERE O.ClientID = @enteredClientID
    GROUP BY O.ClientID);

    -- Insert the orders into the results table --
    SELECT *
    FROM @Results;

GO;

一个称呼它：

exec pOrders @enteredClientID = 'ABC123456789'

或者简单地

exec pOrders 'ABC123456789'