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using dynamic table name in a stored procedure.

IUAATech
IUAATech asked
on
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Last Modified: 2008-03-17
I am creating a stored proc that accepts table name as one of the input parameters. However, I can't get it to work on my ASP.NET code and is always throwing exception.
Here is my stored proc. Please tell me if I am doing something wrong.

CREATE PROCEDURE [InsertNotes]
      (@TableName [nvarchar](50),
      @CreatedBy       [smallint],
       @RequestId       [int],
       @UserOrAdmin       [bit],
       @Notes       [nvarchar](500),
       @NotesId int Output)
AS
EXEC ('INSERT INTO ' + @TableName +  '  VALUES (' +
      @CreatedBy + ',' +
       @RequestId + ',' +
       @UserOrAdmin + ',' +
       @Notes + ')'
      )
      SELECT @NotesId = @@Identity
GO

and my ASP.NET code looks something like

SqlConnection myConnection = new SqlConnection(ConfigurationSettings.AppSettings["connectionString"]);
                  SqlCommand myCommand = new SqlCommand("InsertNotes", myConnection);

                  // Mark the Command as a SPROC
                  myCommand.CommandType = CommandType.StoredProcedure;

                  myCommand.Parameters.Add("@TableName",SqlDbType.NVarChar,50);
                  myCommand.Parameters["@TableName"].Value = this.TableName;

                  myCommand.Parameters.Add("@CreatedBy",SqlDbType.SmallInt);
                  myCommand.Parameters["@CreatedBy"].Value = Convert.ToInt32(HttpContext.Current.User.Identity.Name);

                  myCommand.Parameters.Add("@RequestId",SqlDbType.Int);
                  myCommand.Parameters["@RequestId"].Value = RN.RequestId;

                  myCommand.Parameters.Add("@UserOrAdmin",SqlDbType.Bit);
                  myCommand.Parameters["@UserOrAdmin"].Value = RN.UserOrAdmin;

                  myCommand.Parameters.Add("@Notes",SqlDbType.NVarChar,500);
                  myCommand.Parameters["@Notes"].Value = RN.Notes;

                  myCommand.Parameters.Add("@NotesId",SqlDbType.Int);
                  myCommand.Parameters["@NotesId"].Direction  = ParameterDirection.Output;
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