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string connstr="";
string select = "select * from tableName";
OleDbConnection conn = new OleDbConnection(connstr);
OleDbCommand selectcmd = new OleDbCommand(select, conn);
OleDbDataAdapter adapter = new OleDbDataAdapter(selectcmd);
OleDbCommandBuilder cmdbuilder = new OleDbCommandBuilder(adapter);
adapter.UpdateCommand = cmdbuilder.GetUpdateCommand();