Method execute

src/java/simpledb/execution/Query.java:102–124

()

    }

    public void execute() throws DbException, TransactionAbortedException {
        TupleDesc td = this.getOutputTupleDesc();

        StringBuilder names = new StringBuilder();
        for (int i = 0; i < td.numFields(); i++) {
            names.append(td.getFieldName(i)).append("\t");
        }
        System.out.println(names);
        for (int i = 0; i < names.length() + td.numFields() * 4; i++) {
            System.out.print("-");
        }
        System.out.println();

        this.start();
        int cnt = 0;
        while (this.hasNext()) {
            Tuple tup = this.next();
            System.out.println(tup);
            cnt++;
        }
        System.out.println("\n " + cnt + " rows.");
        this.close();
    }
}