获取存储过程架构

Question

I'm trying to write a framework to generate entities from an existing database.

I've already implemented all the code to generate the entities from the tables and it works well. Now I'm looking for a solution to retrieve all the information I need to generate a stored procedure entity.

This is the code I use to get the stored procedure parameters

public static List<StoredProcedureParameter> GetStoredProceduresParameters(SqlConnection connection, string storedProcedureName, bool closeConnection = true)
{
   var query = @"select Parameter_Name, Data_Type, CHARACTER_MAXIMUM_LENGTH 
                 from information_schema.parameters
                 where specific_name = @StoredProcedureName";

   var storedProcedures = new List<string>();

   SqlCommand command = new SqlCommand(query, connection);

   command.Parameters.Add(new SqlParameter("StoredProcedureName", storedProcedureName));

   DataTable dataTable = new DataTable();

   using (SqlDataAdapter dataAdapter = new SqlDataAdapter(command))
   {
        dataAdapter.Fill(dataTable);
   }

   if (closeConnection)
   {
      connection.Close();
   }

   return DataTableMapper.ReadDataTableList<StoredProcedureParameter>(dataTable);
}

Now I have to retrieve the result set schema, but I can't find the right way to accomplish this task. Any suggestions?

NOTE : all the stored procedures will always return just one possible schema, so any one stored procedure will always correspond to exactly one entity.

Answer 1

Hi SimoneL: There are frameworks to do just that for you, NHibernate or EF (Entity Framework) from Microsoft, do they not answer all your needs?

EF getting Started: http://msdn.microsoft.com/en-gb/data/ee712907#getstarted

Answer 2

See my answer here :

You don't want to call the SP when you want to know the schema, as you may affect data.