Conditional compiling in abap

Question

Is it possible, to use "compiler directives" in ABAP (as known in other programming languages), especially "conditional compiling".
I would like this technique, for a conditional compiling in following situation:
DDIC-TABLE M_VMVD ist available up to R/3-Release 4.6C
Since Release 4.70 this table is replaced by SHP_VIEW_EXVE.
If possible, i want to write <u>one</u> coding for both releases.
It is not sufficient to use a "normal" if - command, because syntax-check will detect an error (table xy is not known).
Here a - fictional - example, what i think about:
*# IF_COMPILER_RELEASE <  470.  (fictional Compiler-Directive)
select single vbeln into my_vbeln from m_vmvmd where lifex = my_lifex.
*# ELSE_COMPILER_DIRECTIVE (fictional)
select single vbeln into my_vbeln from shp_view_exve where lifex = my_lifex.
*# ENDIF_COMPILER_DIRECTIVE  (fictional)
I know, that there was a conditional-compiling-technique for differing R/2 and R/3.
It was something like that:
*#R2    write: / 'Compiled with R/2'.
*#R3   write: / 'Compiled with R/3'.
Best Regards
Juergen

Answer 1

Hi jurgen,
1. compiler directives are not supported in abap r/3,
  in the way, they are used in c and c++.
2. However,
3. For your requirement, we can use
    select with dynamic table name,
   and an if condition.
4. To get a taste of it, just copy paste.
5.
REPORT abc.
data : bukrs like t001-bukrs.
data : tabname(30) type c.
tabname = 'T001'.
CONDITIONAL , NORMAL IF
IF REL < 470.
tabname = 'XYZT001'.
ENDIF.
select single bukrs
from (tabname)
into bukrs.
WRITE :/ BUKRS.
regards,
amit m.