将数组传递给SQL Server存储过程

Question

如何使用C#将数组变量传递给SQL Server存储过程并将数组值插入整行？

提前致谢.

SQL Server表:

ID    | Product | Description
-------------------------------
8A3H  | Soda    | 600ml bottle

C#数组:

string[] info = new string[] {"7J9P", "Soda", "2000ml bottle"};

SQL Server存储过程:

ALTER PROC INSERT
    (@INFO_ARRAY ARRAY)
AS
BEGIN
    INSERT INTO Products VALUES (@INFO_ARRAY)
END

Answer 1

在SQL Server 2008及更高版本中

在SQL Server中创建一个类型,如下所示:

CREATE TYPE dbo.ProductArray 
AS TABLE
(
  ID INT,
  Product NVARCHAR(50),
  Description NVARCHAR(255)
);

在SQL Server中更改您的过程:

ALTER PROC INSERT_SP
@INFO_ARRAY AS dbo.ProductArray READONLY
AS
BEGIN
    INSERT INTO Products SELECT * FROM @INFO_ARRAY
END

然后你需要创建一个DataTable带有值的对象来传递C#:

DataTable dt = new DataTable();
//Add Columns
dt.Columns.Add("ID");
dt.Columns.Add("Product");
dt.Columns.Add("Description");
//Add rows
dt.Rows.Add("7J9P", "Soda", "2000ml bottle");

using (conn)
{
    SqlCommand cmd = new SqlCommand("dbo.INSERT_SP", conn);
    cmd.CommandType = CommandType.StoredProcedure;
    SqlParameter dtparam = cmd.Parameters.AddWithValue("@INFO_ARRAY", dt);
    dtparam.SqlDbType = SqlDbType.Structured;
}