topic Re: field symbol in Application Development and Automation Discussions

field symbol

Former Member — Wed, 25 Jun 2008 14:45:42 GMT

hi Expert,

How to aapend the records from one field symbole to another field symbol.

<t_tab> to <FS.

All relevent answers awarded

Amit

Re: field symbol

Former Member — Wed, 25 Jun 2008 14:49:43 GMT

hi,

do this way ..


assign (itab) to <t_tab>.
if sy-subrc = 0.
  move <t_tab> to <FS>.
endif.

Re: field symbol

Former Member — Wed, 25 Jun 2008 15:23:10 GMT

Hi,

if you want to append one table type field symbol to one other table type field symbol then the following example should work:


FIELD-SYMBOLS <LT_TAB1> TYPE TABLE OF MARA.
FIELD-SYMBOLS <LT_TAB2> TYPE TABLE OF MARA.
[...]
APPEND LINES OF <LT_TAB2> TO <LT_TAB1>.
[...]

More information can be found her: [Filling Internal Tables|http://help.sap.com/saphelp_nw70/helpdata/EN/fc/eb36e2358411d1829f0000e829fbfe/frameset.htm]

Regards Rudi

Re: field symbol

Former Member — Thu, 26 Jun 2008 07:13:57 GMT

Hi Amit,

First thing you should have in mind is Filed-Symbols are pointers and do not have any data storage capacity. So technically speaking Filed-Symbols can point to a data. For this the "assign" keywors is necessary.

So from the above update what Santosh has mentioned is partly correct.

I'll try and explain with an example.

=======

Assuming itab is populated.

Scenatio 1:

=========

FIELD-SYMBOLS : <fs> , <fs1> LIKE line of itab.

LOOP at itab assigning <fs>.

Move <fs> to <fs1>. "---> This is incorrect. This will cause a dump because you are trying to

store the data in <fs> into <fs1> and <fs1> is a pointer.

<fs1> = <fs>. "---> This is also incorrect for the same reason.

Assign <fs> to <fs1> "---> this is correct as you want <fs1> to point where <fs> is pointing too.

ENDLOOP

Scenario 2:

=========

DATA : wa like line of itab.

FIELD-SYMBOLS : <fs> , <fs1> LIKE line of itab.

Assign wa to <fs1> "---> Now this statement points <fs1> to wa which is capable of storing

data. In this case the below statement will work.

LOOP at itab assigning <fs>.

Move <fs> to <fs1>.

<fs1> = <fs>.

ENDLOOP

========

I hope this explains your query.

Regards,

Saurabh