string sql

string sql; string connstr = @"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=|DataDirectory|ASPNET20Book.mdb;Persist Security Info=True"; System.Data.OleDb.OleDbConnection cn = new System.Data.OleDb.OleDbConnection(connstr); System.Data.OleDb.OleDbCommand cmd; cn.Open();