advise on which method is more performance

[Former Member]

I have to initialise the structure BBSEG with / value

please advise of these 2 method which is more performance

method 1 -->(Using the FM NAMETAB)

REFRESH nametab.

CALL FUNCTION 'NAMETAB_GET'

EXPORTING

langu = sy-langu

tabname = tabname

TABLES

nametab = nametab

EXCEPTIONS

no_texts_found = 1.

IF sy-subrc NE 0.

MESSAGE e000 WITH 'DDIC Structure ' tabname ' not found'.

ENDIF.

LOOP AT nametab.

CLEAR char.

CONCATENATE 'I_' nametab-tabname '-' nametab-fieldname INTO char.

ASSIGN (char) TO <f1>.

<f1> = i_nodata.

ENDLOOP.

-

---

Methos 2 -->

data : wa_bbseg type bbseg.

field-symbols : <fs> type any.

do.

assign component sy-index of structure wa_bbseg to <fs>.

if sy-subrc = 0.

<fs> = '/'.

else.

exit.

endif.

enddo.

[JozsefSzikszai]

2nd one is definetly faster, from programing technical point of view also better.

[Former Member]

Hi,

Performance wise second method id faster as it takes less execution time and run time analysis is efficient in second method.

Regards,

Rahul

[Former Member]

Hi,

Second one is better.......Field Symbols are always used for the Better performance as they eliminates the need of any workarea/Headerline/Strucutre for any Value transfer, and hence less memory and processing is required.

[Former Member]

Methos 2 -->

data : wa_bbseg type bbseg.

field-symbols : <fs> type any.

do.

assign component sy-index of structure wa_bbseg to <fs>.

if sy-subrc = 0.

<fs> = '/'.

else.

exit.

endif.

enddo.

Concerning the second method i the <fs> type any

[JozsefSzikszai]

>

Concerning the second method i the <fs> type any

you should not have any concern about it...

[Former Member]

Sorry i didn't complete the question i wanted to ask what if i want to put a TYPE with the FS

<FS> type BBSEG

a dump occur in the line code assign

[Former Member]

Hi,

You have to change code as:

tables:
bbseg.

field-symbols:
<FS> type BBSEG.

Assign bbseg to <FS>.

Thanks & Regards,

Navneeth K.

[JozsefSzikszai]

<fs> TYPE bbseg => here the field symbols will be like a work area

<fs> TYPE ANY => here the field symbol can be anything

in your example you assign the fields of the work area (one by one) to the field symbols, so the <fs> TYPE bbseg will result in a dump.

[Former Member]

mention tables statement inorder to avoid dump or else create a workarea:

data:
wa type bbseg.

field-symbols:
<FS> type BBSEG.
 
Assign wa to <FS>.

[JozsefSzikszai]

>

> Hi,
> 
> You have to change code as:
> 
> 
tables:
> bbseg.
> 
> field-symbols:
> <FS> type BBSEG.
> 
> Assign bbseg to <FS>.
> 
> Thanks & Regards,
> Navneeth K.

and how will you put a slash into each field (the original requirement here) ?

[Former Member]

With the <FS> type any it work fine

it's only with the <FS> type BBSEG that it dump. i am not too familiar with field symbol could you please explain me the reason

[JozsefSzikszai]

I already gave explanation in my previous reply, to add some more: in the DO ... ENDDO you assign each single field to the field symbol (in "normal" ABAP would look like: field1 = variable). if the field symbol is TYPE bbseg, that would be like field1 = work area ==> error!

[christine_evans]

>

> With the <FS> type any it work fine 
> 
> it's only with the <FS> type BBSEG that it dump.  i am not too familiar with field symbol could you please explain me the reason

Why if it works fine with TYPE ANY would you want to try and type it on something else? Especially to type it on BBSEG which is totally wrong for what it is being used for (as explained above). Just making extra work for yourself.

There is nothing wrong with using TYPE ANY; it facilitates the main advantage of using field symbols ie that you can use them to point to any field you want whatever the type.

[matt]

>

> 
> There is nothing wrong with using TYPE ANY; it facilitates the main advantage of using field symbols ie that you can use them to point to any field you want whatever the type.

That advantage is the main reason why you should not use type any. See my blog about[ type safety.|https://www.sdn.sap.com/irj/sdn/weblogs?blog=/pub/wlg/11938] [original link is broken] [original link is broken] [original link is broken];

matt

[Former Member]

Academic discussion. Use standard SAP functionality to do this:

PERFORM INIT_BBSEG(RFBIBLI0) USING BBSEG.

Rob