GetDeleteCommand DataAdapter with a temporary table in Sybase - sap-ase

Question

Porting MSSQL Application to Sybase (ASE 15.0), and experiencing a problem when I call GetDeleteCommand.
The error reported is:
Dynamic SQL generation for the DeleteCommand is not supported against
a SelectCommand that does not return any key column information.
The problem only occurs for temporary table, identical non-temporary table works fine.
Table contains a primary key.
Reproduced using test program below.
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Data.OleDb;
using System.Data;
namespace DataAdapterTempTable
{
class Program
{
static void Main(string[] args)
{
String ConnectionString = "Provider=ASEOLEDB;Data Source=devsun3:5003;Initial Catalog=ctc;User ID=aigtac12;Password=aigtac12;"; // sybase connection string
//String ConnectionString = "Provider=SQLOLEDB;Data Source=fiji;Persist Security Info=False;Initial Catalog=nxgn0811;Integrated Security=SSPI"; // mssql connection string
String TableName = "#alex_temporary_table_test"; // does not work for sybase
//String TableName = "alex_real_table_test"; // works for sybase + mssql
String CreateStatement = "create table " + TableName + " (currency_id varchar(4) primary key, rate decimal(25,6), format char(1))";
String SelectStatement = "select * from " + TableName;
try
{
OleDbConnection con = null;
con = new OleDbConnection(ConnectionString);
con.Open();
OleDbCommand cmd = con.CreateCommand();
cmd.CommandType = CommandType.Text;
cmd.CommandText = CreateStatement;
int count = cmd.ExecuteNonQuery();
OleDbCommand cm1 = con.CreateCommand();
cm1.CommandType = CommandType.Text;
cm1.CommandText = SelectStatement;
OleDbDataAdapter DA2 = new OleDbDataAdapter(cm1);
DataTable DT2 = new DataTable();
DA2.FillSchema(DT2, SchemaType.Mapped);
OleDbCommandBuilder cmdbldr = new OleDbCommandBuilder(DA2);
DA2.InsertCommand = cmdbldr.GetInsertCommand();
DA2.DeleteCommand = cmdbldr.GetDeleteCommand(); // this line fails in sybase for temporary table
DA2.UpdateCommand = cmdbldr.GetUpdateCommand();
DA2.Fill(DT2);
}
catch (Exception e)
{
Console.WriteLine(e);
}
}
}
}

Answer 1

In the select statement, instead of * use the column names.

Answer 2

Contacted Sybase support, turns out I had to update some system stored procedures. There is a folder that ends with "oledb\sp", and I had to run a .bat file from the folder. I got the latest ebf and ran the batch file install_oledb_sprocs.bat, the problem went away. Worth mentioning, that sybase 15.5 did not have the issue without patching.
P.S. Thank you to 'aF' for your time looking into the issue.