Dirty assign not working

[Former Member]

Hi ,

I am new on using field symbols,

so i need some help.

i gor the below error for this code.

LOOP at <dyn_table_o> INTO <dyn_wa_r>.

assign component 'ALT_KUNNR' of structure <dyn_wa_r> to <fs>.

if sy-subrc = 0 and <fs> is not initial.

APPEND <dyn_wa_r> to <dyn_table_r>.

endif.

ENDLOOP.

error:

You attempted to access an unassigned field symbol

(data segment 32771).

This error may occur if

- You address a typed field symbol before it has been set with

ASSIGN

- You address a field symbol that pointed to the line of an

internal table that was deleted

- You address a field symbol that was previously reset using

UNASSIGN or that pointed to a local field that no

longer exists

- You address a global function interface, although the

respective function module is not active - that is, is

not in the list of active calls. The list of active calls

can be taken from this short dump.

what should i do?

Regards,

Harshit Rungta

Edited by: Julius Bussche on Jul 7, 2009 9:02 AM

Please use meaningfull subject titles.

[RichHeilman]

Does <dyn_wa_r> have a component called ALT_KUNNR at runtime?

Regards,

Rich Heilman

[RichHeilman]

You might want to try using ASSIGNING instead of INTO.

loop at <dyn_table_o> ASSIGNING <dyn_wa_r>.

Regards,

Rich Heilman

[Former Member]

Thanks Rich,

But i am again getting error at the line

APPEND <dyn_wa_r> to <dyn_table_r>.

I also tried with

ASSIGN <dyn_wa_r> to <dyn_table_r>.

but still getting the error.

Thanks,

Harshit Rungta

[RichHeilman]

Have you assigned <dyn_table_r> yet? You would need to do this before trying to append to it. How are you creating this dynamic internal table. Post the relevant code, please.

Regards,

Rich Heilman

[Former Member]

FIELD-SYMBOLS :<dyn_table_r> TYPE STANDARD TABLE,

<dyn_wa_r> TYPE ANY.

ASSIGN <dyn_table_o> to <dyn_wa_r> .

ASSIGN <dyn_wa_r> to <dyn_table_r>.

*

field-symbols: <fs> type any.

LOOP at <dyn_table_o> ASSIGNING <dyn_wa_r>.

assign component 'ALT_KUNNR' of structure <dyn_wa_r> to <fs>.

if sy-subrc = 0 and <fs> is not initial.

APPEND <dyn_wa_r> to <dyn_table_r>.

endif.

ENDLOOP.

Hi Rich,

above is the code.

Its working now,

but the statement ASSIGN <dyn_table_o> to <dyn_wa_r> is transferring all the entries of the dyn table to the wa,

wheras i just want the structure of the same.

what should i do?

Regards,

Harshit Rungta

[RichHeilman]

Yes, you appear to be a bit confused about what you are trying to do. <dyn_table_r> must be created dynamically at runtime and assign thereafter. Something like....

FIELD-SYMBOLS :<dyn_table_r> TYPE STANDARD TABLE,
<dyn_wa_r> TYPE ANY.


data: o_ref type data.

* assume that <dyn_table_o> has already been created, and assigned.
create data o_ref like <dyn_table_o>.
assign o_ref->* to <dyn_table_r>.


field-symbols: <fs> type any.
LOOP at <dyn_table_o> ASSIGNING <dyn_wa_r>.
assign component 'ALT_KUNNR' of structure <dyn_wa_r> to <fs>.
if sy-subrc = 0 and <fs> is not initial.
APPEND <dyn_wa_r> to <dyn_table_r>.
endif.
ENDLOOP.

As you can see above, you must create the dynamic internal table <dyn_table_r>. You can base this from the <dyn_tab_o> if it already exists at runtime. I'm assuming that it does.

Regards,

Rich Heilman

[Former Member]

Thanks a lot Rich,

But for the statement

data : o_ref type data.

I am getting the error

"DATA" is a generic type. A type reference is possible only for field

symbols and formal parameters . . . . . . . . . .

Regards,

Harshit Rungta

[RichHeilman]

oops, sorry. that should be TYPE REF TO DATA

data: oref type ref to data.

Regards,

Rich Heilman