Question

我正在尝试创建一个存储过程来确定我的customerid是否存在，如果它存在，那么我的其他参数foundcustomer将被分配给找不到的其他参数。我不确定如何分配找到请帮助这是我试过的

     CREATE PROCEDURE procedure4
   -- Add the parameters for the stored procedure here
    @FoundCustomer varchar(10) = null,
    @Customerid varchar (5) = null
   AS
BEGIN
-- SET NOCOUNT ON added to prevent extra result sets from
-- interfering with SELECT statements.
SET NOCOUNT ON;

  -- Insert statements for procedure here

if Not(@Customerid is null)

SELECT customerid
  from customers
  where customerid = @Customerid

END GO

Answer 1

Gordon是对的，听起来你可能想要一个函数，但如果它必须是一个存储过程，你可以按照这个例子。

CREATE PROCEDURE procedure4 
    @Customerid varchar(5) = null
AS 

BEGIN
    SET NOCOUNT ON;

    DECLARE @FoundCustomer varchar(10) = ''

    IF @FoundCustomer is not null

    BEGIN
        IF (SELECT COUNT(1) FROM customers WHERE customerid = @customerid) > 0
            SET @FoundCustomer = 'Found'
        ELSE 
            SET @FoundCustomer = 'Not Found'
    END

    SELECT @FoundCustomer

END

存储过程不确定语法

1 个答案: