Generic assignment of a table to a field symbol

[Former Member]

Hi,

I'm trying to do a function that receives the name of a table (not the table) and then list its content. How can I assign the table to a field symbol. I think in something like this:

perform compara using 'kna1'.

FORM compara USING tabl.

FIELD-SYMBOLS: <table> TYPE ANY.

ASSIGN (tabl) TO <table>.

WRITE <table>-kunnr.

ENDFORM.

But it doesn't work, something like "the data object <table> has no structure and therefore no component called KUNNR"

In fact the real purpose of the function is to receive a structure of the same type of the table and a the header of the table, compare its fields and then return if all fields have the same value.

[Former Member]

Hi,

change the code as

perform compara using 'kna1'.

FORM compara USING tabl.

FIELD-SYMBOLS: <table> TYPE ANY.

*<b>ASSIGN (tabl) TO <table>.</b>

<b> Assign tabl to <table>.</b>

WRITE <table>-kunnr.

ENDFORM.

Refer to example prog in ABAPDOCU

REPORT demo_field_symbols_assign_comp .

DATA: BEGIN OF line,

col1 TYPE i VALUE '11',

col2 TYPE i VALUE '22',

col3 TYPE i VALUE '33',

END OF line.

DATA comp(5) TYPE c VALUE 'COL3'.

FIELD-SYMBOLS: <f1> TYPE ANY, <f2> TYPE ANY, <f3> TYPE ANY.

ASSIGN line TO <f1>.

Regards,

Sailaja.

[jayanthi_jayaraman]

Hi,

perform compara tables itab.

form compara tables itab type table.

field-symbols: <fs> type any,

<fs1> type any.

loop at itab assigning <fs>.

do.

ASSIGN COMPONENT sy-index OF STRUCTURE <fs> TO <fs1>.

write <fs1>.

if sy-subrc ne 0.

exit.

endif.

enddo.

new-line.

endloop.

endform.

Kindly reward points if it helps.

[Former Member]

Hi

You can't indicate the field name, because the system can know the structure only at run time, so you get the sintax error. you should dymanically indicate the the field:

perform compara using 'kna1'.

FORM compara USING tabl.

FIELD-SYMBOLS: <table> TYPE ANY,

<field> TYPE ANY.

ASSIGN (tabl) TO <table>.

ASSIGN COMPONENT 'KUNNR' OF STRUCTURE <TABLE> TO <FIELD>.

WRITE <FIELD>.

ENDFORM.

[Former Member]

IF i want to change the (not to write) ' kuner ' and update the table

how t do it any help pls.....

[Former Member]

Hi,

For changing the field, you assign the new value to <FIELD>

i.e instead of Write <FIELD> use,

<FIELD> = 'New Value'.

Field symbol accesses the memory directly. So changes made to field symbol will automatically reflect in the assigned field's value.

Note: Create new thread whenever you ask new queries. I responded without seeing the initiator name of the thread. Please take care of this!

Thanks,

Lakshmi

Edited by: Santhanalakshmi V on Dec 3, 2008 5:19 PM