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  PARAMETERS letter Text ( 255 );
  SELECT ¡­¡­¡­¡­ from table1 WHERE letter = letter

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this.conn.Open();
DataSet ds = new DataSet();
OleDbCommand command = new OleDbCommand(str_QueryName);
command.CommandType = CommandType.StoredProcedure;
command.Parameters.AddWithValue("@StartDay", OleDbType.Date).Value = str_StartDay;
command.Parameters.AddWithValue("@EndDay", OleDbType.Date).Value = str_EndDay;
OleDbDataAdapter adapter = new OleDbDataAdapter(command);
adapter.Fill(ds);
this.conn.Close();
return dt;


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