НЕПОНИМАЮ :( Which fields are used for sorting the internal table itab in the following code

MV

Вопрос:
Which fields are used for sorting the internal table itab in the following code:
Types: begin of itab_structure,
Field1 type p,
Field2 type c,
Field3 type I,
Field4 type n,
end of itab_structure.

Data: itab type table of itab_structure.
Sort itab.

Правильный ответ: Field2, Field4.
ОБЪЯСНИТЕ ДОХОДЧИВО, ПОЧЕМУ Field2, Field4, а не Field1???

Kanev

может связано с типом данных...

DATA: BEGIN OF ITAB OCCURS 10,
COL1 TYPE C,
COL2 TYPE I,
COL3 TYPE N,
END OF ITAB.

......

SORT ITAB.

In this example, the internal table is sorted by its standard key or, in other words, by all non-numerical fields. The sort order is first COL1 and then COL3. The performance of the program can be improved by exchanging columns two and three.

Jelena

ABAP Keyword Documentation:

Цитата:

Basic form
SORT itab.

The entries in the internal table are sorted in ascending order using the key from the table definition (DATA, TYPES).

Цитата:

In internal tables, the standard key basically comprises all tables fields with character-like types (type ( C, STRING, D, T, N, X, XSTRING). In particular, components with a numeric type (also refer to ABAP numeric types) and table components usually do not belong to the standard key.

MV

Спасибо Kanev и Jelena!

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НЕПОНИМАЮ :( Which fields are used for sorting the internal table itab in the following code

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