CASE can contain a WHEN OTHERS clause for various reasons: to handle unexpected values, to show that all the cases were
properly considered, etc.
For readability purposes, to help a developer quickly spot the default behavior of a CASE statement, it is recommended to put the
WHEN OTHERS clause at the end of the CASE statement.
This rule raises an issue if the WHEN OTHERS clause is not the last one of the CASE's cases.
CASE SY-INDEX.
WHEN OTHERS. // Noncompliant; WHEN OTHERS should be the last statement
WRITE 'Unexpected result'
WHEN ONE.
WRITE 'One'.
WHEN 2.
WRITE 'Two'.
ENDCASE.
