public int executeUpdate(String sql) throws SQLException {
  return Util.truncateAndConvertToInt(executeLargeUpdate(sql));
}

public int executeUpdate ( String sql ) throws SQLException { return Util . truncateAndConvertToInt ( executeLargeUpdate ( sql ) ) ; }
execute a sql insert , update or delete statement . in addition sql statements that return nothing such as sql ddl statements can be executed .
