c# - 如何将返回行或列值的 SQL 存储过程结果存储到 ASP.NET C# 变量中？

Question

我有一个返回列值（SQL 数据类型：）的 SQL 存储过程nchar(1)。存储过程运行并在传递参数时返回所需的值。根据这个返回值，我想对程序流程进行分流。为此，我需要读取 ASP.NET C# 变量中返回的值，但我不知道该怎么做。

create procedure sproc_Type
      @name as nchar(10)
AS    
SELECT Type FROM Table WHERE Name = @name

我想读取Type.cs 文件中的值并希望将其保存以备后用。

Answer 1

string connectionString = "(your connection string here)";
string commandText = "usp_YourStoredProc";

using (SqlConnection conn = new SqlConnection(connectionString))
{
SqlCommand cmd = new SqlCommand(commandText, conn);
cmd.CommandType = CommandType.StoredProcedure;
cmd.CommandTimeout = 600;

conn.Open();
SqlDataReader dr = cmd.ExecuteReader();
while(dr.Read())
{
// your code to fetch here.
}
conn.Close();

}

Answer 2

             SqlConnection conn = null;
             SqlDataReader rdr  = null;
             conn = new 
                SqlConnection("Server=(local);DataBase=Northwind;Integrated Security=SSPI");
            conn.Open();

            // 1.  create a command object identifying
            //     the stored procedure
            SqlCommand cmd  = new SqlCommand(
                "Stored_PROCEDURE_NAME", conn);

            // 2. set the command object so it knows
            //    to execute a stored procedure
            cmd.CommandType = CommandType.StoredProcedure;

            // 3. add parameter to command, which
            //    will be passed to the stored procedure
            cmd.Parameters.Add(
                new SqlParameter("@PARAMETER_NAME", PARAMETER_VALUE));

            // execute the command
            rdr = cmd.ExecuteReader();

            // iterate through results, printing each to console
            while (rdr.Read())
            {
                var result = rdr["COLUMN_NAME"].ToString();
            }