问题
I want to pass a DataDable to a stored procedure as parameter cointaning the columns below:
Supp_Id int
Del_Methode_Id int
Ord_Ammount int
Promo_Id int
Discount_Ammount Money
Now I want to use this datatable in stored procedure and want to declare a cursor on it. And use that cursor to insert values into the database table sequentially.
Please tell me how to declare datatable parameter in stored procedure and then using cursor on that parameter ?
回答1:
First you need to create a type:
CREATE TYPE dbo.whatever AS TABLE
(
Supp_Id int,
Del_Methode_Id int,
Ord_Amount int,
Promo_Id int,
Discount_Amount Money
);
Now your stored procedure can declare this as a read only input parameter:
CREATE PROCEDURE dbo.do_whatever
@datatable dbo.whatever READONLY
AS
BEGIN
SET NOCOUNT ON;
INSERT dbo.destination_table(column_list)
SELECT column_list FROM @datatable;
END
GO
Why you want to use a cursor here, or think you need one, I'm not sure. You can add an ORDER BY clause to the INSERT...SELECT if you think that will be useful (and there is something meaningful to order by), but otherwise if you really really want a cursor here you should be able to declare one against @datatable just as you would for any other table.
来源：https://stackoverflow.com/questions/18080022/passing-c-sharp-datatable-as-a-parameter-to-stored-procedure-in-ms-sql-server-20