如何插入使用存储过程在SQL中多行？ [英] How to insert a multiple rows in SQL using stored procedures?

问题描述

我能插在一个声明中的项目，但我想要做的是有一个使用存储过程的另一个版本。我怎么做。这里是我的代码：

I'm able to insert the the items in a single statement but what I want to do is to have another version using a Stored Procedures. How do I do that. Here's my code:

    private void button1_Click(object sender, EventArgs e)
        {
#region Get Values

            string[] array = {textBox1.Text+":"+textBox5.Text,textBox2.Text+":"+textBox6.Text,textBox3.Text+":"+textBox7.Text,textBox4.Text+":"+textBox8.Text};
            string query = "";
            string product = "";
            int qty = 0;
            for (int i = 0; i < array.Length; i++ )
            {
                product = array[i].ToString().Substring(0,array[i].ToString().IndexOf(':'));
                qty = int.Parse(array[i].ToString().Substring(array[i].ToString().IndexOf(':')+1));
                if (string.IsNullOrEmpty(query))
                {
                    query = "Insert Into MySampleTable Values ('"+product+"','"+qty+"')";
                }
                else
                {
                    query += ",('" + product + "','" + qty + "')";
                }


            }

#endregion

            string connect = "Data Source=RANDEL-PC;Initial Catalog=Randel;Integrated Security=True";
            SqlConnection connection = new SqlConnection(connect);
            connection.Open();
            string insert = query;
            SqlCommand command = new SqlCommand(query,connection);
            command.ExecuteNonQuery();
            command.Dispose();
            connection.Close();
            connection.Dispose();
            label5.Visible = true;
            label5.Text = insert;
        }
    }

先生/女士，你的回答将是很大的帮助并非常赞赏。谢谢++

Sir/Ma'am, Your answers would be of great help and be very much appreciated. Thank you++

推荐答案

在SQL Server的2008+也有更简单的方法在一个单独的语句来插入多行。例如这个语法是有效的：

In SQL Server 2008+ there are easier ways to insert multiple rows in a single statement. For example this syntax is valid:

INSERT dbo.table(col1, col2) VALUES
    (1, 2),
    (2, 3),
    (3, 4);

以上将插入三行。在旧版本，你可以做稍微详细的东西，如：

The above will insert three rows. On older versions you can do slightly more verbose things such as:

INSERT dbo.table(col1, col2)
 SELECT 1, 2
  UNION ALL SELECT 2, 3
  UNION ALL SELECT 3, 4;

当然你的的ExecuteNonQuery 不必是一个命令，你可以通过这个作为一个字符串，它仍然可以工作：

Of course your ExecuteNonQuery does not have to be a single command, you can pass this as a single string and it will still work:

INSERT dbo.table(col1, col2) VALUES(1, 2);
INSERT dbo.table(col1, col2) VALUES(2, 3);
INSERT dbo.table(col1, col2) VALUES(3, 4);

如果你想这样做在存储过程中，您可以轻松地在多值进行拆分参数，例如，如果你在下面的字符串传递：

If you want to do this in a stored procedure, you can easily perform a split on multi-valued parameters, for example if you pass in the following string:

1,2;2,3;3,4

您可以处理使用像我这里张贴一个函数的值：

You could process those values using a function like the one I posted here:

分割值对和创建表的使用UDF

所以你的过程可能是这样的：

So your procedure might look like this:

CREATE PROCEDURE dbo.AddOrderLineItems
    @LineItems VARCHAR(MAX)
AS
BEGIN
    SET NOCOUNT ON;

    INSERT dbo.OrderItems(Product, Quantity)
      SELECT Product, Quantity FROM dbo.MultiSplit(@LineItems);
END
GO

和你会使用C＃相当于调用它：

And you would call it using the C# equivalent of:

EXEC dbo.AddOrderLineItems @LineItems = '1,2;2,3;3,4';

或阿列克谢的建议你可以使用表值参数。一个简单的例子：

Or you could use table-valued parameters as suggested by Alexey. A quick example:

CREATE TYPE OrderLineItem AS TABLE
(
  Product INT,
  Quantity INT
);

然后，你可以创建一个过程：

Then you can create a procedure:

CREATE PROCEDURE dbo.AddOrderLineItems
    @LineItems OrderLineItem READONLY
    -- other parameters
AS
BEGIN
    SET NOCOUNT ON;

  INSERT dbo.OrderItems(Product, Quantity) 
  SELECT Product, Quantity FROM @LineItems;
END
GO

然后在你的C＃代码创建了相当于TVP（我又不是你想这样做的家伙，你可以在这里例子。一>）

但也有一些注意事项，请看看这个问题：

However there are some caveats, please look at this question:

的Creating广义类型用作表值参数

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