2396871 - Unexpect data sequence / sort order after internal table sort

1. The relative order of rows that do not have different sort keys is not retained when they are sorted.

   For example, internal table contains 3 columns <col1> <col2> <col3>, sorted by <col1> <col2>  ASCENDING：

   If it is sorted by <col1> <col2>  ASCENDING  again, the data is still in the correct order but the position of the rows with same sort keys may change:

   The problem could happen randomly and may only happen in one system but not in another, regardless of no difference in data, kernel, or package.

2. Using SORT command without AS TEXT option, the sort order of text/character(CHAR/STRING) fields is unexpect(not in accord with the country rules).

   The problem happens when the text/character fields contain non-numeric contents, like national characters(Chinese/Japanese...) or punctuation marks, blank characters, special technical characters.eg

3. Using SORT command with AS TEXT option to sort text/character fields but the sort order is still unexpect.

ABAP System.

select, unexpect sort order,  data sequence, sort stable, sort internal table, sort as text, national special characters, stable sorting, Chinese, Japanese, , KBA , BC-ABA-LA , Syntax, Compiler, Runtime , BC-I18 , Internationalization (I18N) , Problem