Error: Tables with Header line No longer Supported In WD-ABAP

Hi folks,
I am working on WD4A functionality.I have to use Abap code to retrive data from database and i am doing it by declaring internal table with header line in one of the Methods.I have to do manipulation on table before i can bind table to result node.I can do manipulation in Header in ABAP,but now it is no longer supported in WD4A.What can i do for this?
Nirad.

hi nirad.
The example is not of much sense
but explains the funtionality. Hope this is what you are searching for.
data:
lt_flights type table of sflight.
data:
ls_flight type sflight.
select * from sflight
into corresponding fields of table lt_flights.
loop at lt_flights into ls_flight.
ls_flight-price = 1000.
modify lt_flights from ls_flight.
endloop.
Cheers,
Sascha

Similar Messages

Getting error of Defining an internal table with header line, SELECT-OPTIO

Hi all,
i have a coding for my smart form,In this coding i have define an structure which being used,but when i execute it it give me
error of Defining an internal table with header line, SELECT-OPTIONS, and RANGES is not allowed within a structure.Even tough you can see that in my coding im not using SELECT-OPTION or RANGES,but can't understand why it gives me this error.
Following are the code:
DATA: BEGIN OF traptab OCCURS 50.
        INCLUDE STRUCTURE mseg.
DATA: vgart LIKE mkpf-vgart,
        blart LIKE mkpf-blart,
        blaum LIKE mkpf-blaum,
        bldat LIKE mkpf-bldat,
        budat LIKE mkpf-budat,
        cpudt LIKE mkpf-cpudt,
        cputm LIKE mkpf-cputm,
        aedat LIKE mkpf-aedat,
        usnam LIKE mkpf-usnam,
        tcode LIKE mkpf-tcode,
        xblnr LIKE mkpf-xblnr,
        bktxt LIKE mkpf-bktxt,
        frath LIKE mkpf-frath,
        frbnr LIKE mkpf-frbnr,
        wever LIKE mkpf-wever,
      END OF traptab.
Thanks & Regards,
sappk25

thanks

Dynamicly creating an internal table with header line

Hi experts,
I am trying to do a read on an internal table using field symbols of type any table. To be able to read more than one row at once, I'd like to read it into another internal table (instead of just one line and instead of looping through them one by one).
So far the following line rendered an error that the target internal table doesn't have a header line
read table <fs_v_tab> WITH KEY (<fs_comp>) = <fs_param>-low INTO <fs_v_tab>.
(also attempted using "<fs_v_tab>->*" & "<fs_v_tab>[]" to be silly)
Based on the following article, I was wondering if it were possible to dynamicly create an internal table with header line.
[http://help-abap.blogspot.com/2008/09/dynamic-internal-table-creation.html|http://help-abap.blogspot.com/2008/09/dynamic-internal-table-creation.html]
Any help or tips on how to dynamicly filter an internal table field-symbol is greatly appreciated!

Just read the online help:
This statement reads a row from internal table itab.
Or more exact:
This statement reads one row from internal table itab.
Therefore you can not read multiple lines into another table. The header line is needed to put the result in. And this is not what you intended, the result will be in the header line, not in the table itself.
If the row to be read is not uniquely specified, the first suitable row is read. In the case of index tables, this row has the lowest table index of all matching rows.
At least you have to do what you dont wanna do: looping.

Passing an internal table WITH HEADER LINE to abap object

Hi. In another thread, it was explained how to pass an internal table to an abap object method. Is it possible to pass an internal table that has a header line, and RETAIN the header line once the table has been passed?
My problem is, that I can pass the table, update it, but the read buffer is not populated when returning from the object's method. This is the result of being able to pass a STANDARD TABLE type, but not a STANDARD TABLE WITH HEADER LINE.
This means that I have to read the table into a work area instead of doing a READ TABLE LKNA1 within the method, which is what I need to do.
Thanks.

Please check this sample program, notice that it is modifing the internal table and passing it back modified as well as passing the "work area" or "header line" back thru the exporting parameter.
report zrich_0001.
*       CLASS lcl_app DEFINITION
class lcl_app definition.
public section.
    types: t_t001 type table of t001.
    class-data: it001 type table of t001.
    class-data: xt001 like line of it001.
    class-methods: change_table
                                exporting ex_wt001 type t001
                                changing im_t001 type t_t001.
endclass.
data: w_t001 type t001.
data: a_t001 type table of t001 with header line.
start-of-selection.
select * into table a_t001 from t001.
call method lcl_app=>change_table
             importing
                 ex_wt001 = w_t001
             changing
                 im_t001 = a_t001[] .
check sy-subrc = 0.
*       CLASS lcl_app IMPLEMENTATION
class lcl_app implementation.
method change_table.
    loop at im_t001 into xt001.
      concatenate xt001-butxt 'Changed'
           into xt001-butxt separated by space.
      modify im_t001 from xt001.
    endloop.
    ex_wt001 = xt001.
endmethod.
endclass.
Regards,
Rich Heilman

BADI cant use an internal table with header line

hi,
In BADI, we cant use an internal table with header line, and I am calling a function module which requires internal table as import parameter, now, the table I am passing is without a header line, So how to solve this problem ?

You can use a type and then create an internal table of that type.
types :
begin of t_<example>
*field list
end of t_<example>
data :
gt_<table> type standard table of t_<example>
pass this to the FM

Dynamic Creation of Internal table WITH HEADER LINE

Dear,
Please show me the way of creating Internal table WITH HEADER LINE dynamically..
Thanks,
Nirav

Hi Parekh,
Have a look at the sample program for Dynamic internal table
This program has been developed to update any table data in the dictionary. We give table name and File name as Input fields.
<pre>
REPORT znpmmm0201.
*Types
TYPES:
 BEGIN OF ty_file,
 data(4096) TYPE c,
 END OF ty_file.
*Type-pools
TYPE-POOLS:
 truxs.
*Work areas
DATA:
 wa_file TYPE ty_file.
*Internal tables
DATA:
 it_file TYPE STANDARD TABLE OF ty_file,
 it_data TYPE truxs_t_text_data.
DATA:
 gv_dref TYPE REF TO data,
 file_name TYPE string.
*FIELD-SYMBOLS
FIELD-SYMBOLS:
 <gf_itab> TYPE STANDARD TABLE,
 <wa> TYPE ANY.
*& Selection-screen
PARAMETERS:
 p_table TYPE rsrd1-tbma_val,
 p_file TYPE ibipparms-path.
AT SELECTION-SCREEN ON VALUE-REQUEST FOR p_file.
PERFORM f4_for_p_file CHANGING file_name .
*& START-OF-SELECTION
START-OF-SELECTION.
CREATE DATA gv_dref TYPE TABLE OF (p_table).
ASSIGN gv_dref->* TO <gf_itab>.
PERFORM upload_data USING file_name.
MODIFY (p_table) FROM TABLE <gf_itab>.
*& Form UPLOAD_DATA
FORM upload_data USING file.
CALL FUNCTION 'GUI_UPLOAD'
 EXPORTING
 filename = file
 filetype = 'ASC'
 TABLES
 data_tab = it_file.
APPEND LINES OF it_file TO it_data.
CLASS cl_abap_char_utilities DEFINITION LOAD.
DATA: l_field_seperator.
l_field_seperator = cl_abap_char_utilities=>horizontal_tab.
REPLACE ALL OCCURRENCES OF '|' IN TABLE it_data WITH l_field_seperator.
CALL FUNCTION 'TEXT_CONVERT_TEX_TO_SAP'
 EXPORTING
 i_field_seperator = l_field_seperator
 i_tab_raw_data = it_data
 TABLES
 i_tab_converted_data = <gf_itab>.
ENDFORM. " UPLOAD_DATA
*& Form F4_FOR_p_file
FORM f4_for_p_file CHANGING file.
DATA:
 l_field_name LIKE dynpread-fieldname VALUE 'P_FILE'.
CALL FUNCTION 'F4_FILENAME'
 EXPORTING
 program_name = syst-cprog
 dynpro_number = syst-dynnr
 field_name = l_field_name
 IMPORTING
 file_name = p_file.
file = p_file.
ENDFORM. " F4_FOR_p_file </pre>
Thanks,
Venkat.O

How to create an internal table with header line in smartforms

Hello Guys,
I need to append the data in my internal table in smartforms by the problem is an error occurred "a table without header line and therefore no component called tdline"
i already declared the data under types declaration tab
types : begin of ts_tline,
         TDFORMAT type tdformat,
         tdline type tdline,
        end of ts_tline.
types : it_tline type table of ts_tline.
and declare these in global data
WA_TLINE type TS_TLINE
XT_TLINE type IT_TLINE
my syntax in program lines :
LOOP AT gy_lines INTO WA_PROJ.
    SPLIT wa_proj AT cl_abap_char_utilities=>cr_lf
       INTO table IT_SPLIT.
    LOOP AT IT_SPLIT.
      MOVE it_split-commentext TO xt_TLINE-tdline.
an error occured at this part ****
     append xt_TLINE.
    ENDLOOP.
ENDLOOP.
what is wrong with my code..it cannot append data to xt_tline.
Please help.Will reward points
Thanks in advance
aVaDuDz

check this link
this will help u......
http://www.****************/Tutorials/Smartforms/SFMain.htm
reward IF..........
regards
Anbu

Why does my internal table(with header line) ignore 4 of its fields?

Hi Gurus,
I am a newbie to ABAP how has spent far to much of my weekend time trying to solve the following problem;
when trying to insert data from table cdpos into my internal table, I only get the two object* fields, the other 3 are not even part of the internal table according to the debugger.
my select code is:
SELECT fname tabkey changenr objectclas objectid
 FROM cdpos
 INTO CORRESPONDING FIELDS OF i_cd_index
WHERE tabname = 'XXX'
 AND fname = 'XXX'
 AND chngind = 'U'
ENDSELECT.
IF sy-subrc <> 0.
ENDIF.
- If I use a wa like line of i_cd_index the other fields will show up.
- I have tried with including 'TABLE' in the INTO statement, same result.
Please help out, getting very frustrated here....
/Mike

Hi Magdic,
I have completely coded for but i have taken as parameters rather direct values (XXXX). Under stand the code and select statement you will get it. Program which i have shown is working fine.
Do one thing first go the table CDPOS take one entry of Objectid, Tabname, fname and chngind and then enter in the selection and find whether the values are fetched correctly or not.
To my knowledge there might be no data in your table.
Anyhow try the below code.
TABLES: CDPOS.
DATA: ITAB LIKE CDPOS OCCURS 0 WITH HEADER LINE.
parameters: p_CHGID like CDPOS-chngind,
 p_TAB like CDPOS-TABNAME,
 P_FNAM LIKE CDPOS-FNAME.
SELECT OBJECTID TABNAME FNAME CHNGIND FROM CDPOS INTO CORRESPONDING FIELDS OF ITAB WHERE OBJECTID = P_CHGID
 AND TABNAME = P_TAB
 AND FNAME = P_FNAM.
APPEND ITAB.
ENDSELECT.
WRITE: ITAB-OBJECTID, ITAB-TABNAME, ITAB-FNAME, ITAB-CHNGIND.
Cheers!!
Balu

Internal table with header line

Hi All,
I want to declare a internal table with headerline as page attribute.
i am having to fields in the internal table ( firstname and lastname ). how to do that?
helpful answers will be rewarded.
Regards,
Azaz Ali.

Azaz,
Why do you need a header line?
Header lines are a no-no in an object context and if you need to loop at the table you can always declare a line type or an field symbol to process the table.
If you need an table as a page parameter the best way to do it is to create a table type. This is based of a line type (another name for structure ) and this may well be based off a database (transparent) table.
If you need to do special things to the table I would look at tableview iterators.
Let me dig out a blog reference for that...
... ahh here it is
<a href="/people/thomas.jung3/blog/2004/06/17/bsp-150-a-developer146s-journal-part-i-introduction View Iterator blog</a>
HTH,
N

How to move field symbol internal table to internal table with header line?

Dear all,
hi...hereby i would like to ask how i can move field symbol internal table to a internal table?
as i know field symbol internal table is without header line..
so, may i know how to do this....to move field symbol internal table to internal table which consist of header line and field and record will same as field symbol internal table...in additional, my field symbol internal table is dynamic table mean everytime will have flexible columns..?
Please advise...
Thanks
Regard,
ToToRo.
Edited by: @ToToRo@ on Aug 20, 2009 6:16 AM

Hello,
Try this way:
If both the type of internal tables are same then you can directly assign dynamic internal table to static internal table.
itab = <itab>.
Suppose you have field symbol internal table <itab> which is different in structure from ITAB.
Now, you can create <wa> as follow:
FIELD-SYMBOLS <wa>.
DATA wa TYPE REF TO DATA.
CREATE DATA wa TYPE LINE OF <itab>.
ASSIGN wa->* to <wa>.
This way your work area is read.
Using [ASSIGN COMPONENT|http://help.sap.com/saphelp_nw04/helpdata/EN/fc/eb3923358411d1829f0000e829fbfe/content.htm] syntax you can read required component of <wa>.
Finally you can use that value to load static internal table.
You can also refer to my thread on [Dynamic table|Re: Creating Dynamic table].
Hope this helps!
Thanks,
Augustin.
Edited by: Augustarian on Aug 20, 2009 10:06 AM

Internal table with header line and work area.

data:itab like LIKE bapimepoheader.
DATA : BEGIN OF it_po_items OCCURS 0.
        INCLUDE STRUCTURE bapimepoitem.
DATA : END OF it_po_items.
DATA:it_input         TYPE STANDARD TABLE OF typ_input,
      wa_input         TYPE typ_input,
LOOP AT it_input INTO wa_input WHERE poind = 'H'.
CLEAR wa_po_header.
wa_po_header-doc_type = wa_input-bsart.
wa_po_header-comp_code = wa_input-bukrs.
wa_po_header-vendor    = wa_input-lifnr.
CLEAR it_po_items.
it_po_items-po_item = v_itemcount * 10.
it_po_items-acctasscat = wa_input-knttp.
it_po_items-material   = wa_input-matnr.
it_po_items-plant      = wa_input-werks.
it_po_items-quantity   = wa_input-menge.
it_po_items-net_price = wa_input-netpr.
it_po_items-po_unit    = wa_input-meins.
it_po_items-free_item = wa_input-umson.
it_po_items-tax_code   = wa_input-mwskz.
it_po_items-gr_ind     = wa_input-wepos.
it_po_items-gr_non_val = wa_input-weunb.
it_po_items-incoterms1 = wa_input-inco1.
it_po_items-incoterms2 = wa_input-inco2.
it_po_items-vend_mat   = wa_input-idnlf.
it_po_items-taxjurcode = wa_input-txjcd.
it_po_items-item_cat   = wa_input-pstyp.
APPEND it_po_items.
here my doubt is whether i can move data from work area to internal table in this way?
whether this is the correct approach or not?

hii,
u can define structure and make workarea ,internal table using that structure.
for example
types:begin of struct,
         declare all fields,
         end of struct.
data:wa type struct,
       int_tab type standard table of struct.
hope this will help u.

With header line & with out header line ?

what is difference between with header line & without header line ?

When you create an internal table object you can also declare a header line with the same name. You can use the header line as a work area when you process the internal table. The ABAP statements that you use with internal tables have short forms that you can use if your internal table has a header line. These statements automatically assume the header line as an implicit work area. The following table shows the statements that you must use for internal tables without a header line, and the equivalent statements that you can use for internal tables with a header line:
Operations without header line
Operations with header line
Operations for all Table Types
INSERT <wa> INTO TABLE <itab>.
INSERT TABLE ITAB.
COLLECT <wa> INTO <itab>.
COLLECT <itab>.
READ TABLE <itab> ... INTO <wa>.
READ TABLE <itab> ...
MODIFY TABLE <itab> FROM <wa> ...
MODIFY TABLE <itab> ...
MODIFY <itab> FROM <wa> ...WHERE ...
MODIFY <itab> ... WHERE ...
DELETE TABLE <itab> FROM <wa>.
DELETE TABLE <itab>.
LOOP AT ITAB INTO <wa> ...
LOOP AT ITAB ...
Operations for Index Tables
APPEND <wa> TO <itab>.
APPEND <itab>.
INSERT <wa> INTO <itab> ...
INSERT <itab> ...
MODIFY <itab> FROM <wa> ...
MODIFY <itab> ...
Using the header line as a work area means that you can use shorter statements; however, they are not necessarily easier to understand, since you cannot immediately recognize the origin and target of the assignment. Furthermore, the fact that the table and its header line have the same name can cause confusion in operations with entire internal tables. To avoid confusion, you should use internal tables with differently-named work areas.
The following example shows two programs with the same function. One uses a header line, the other does not.
With header line:
TYPES: BEGIN OF LINE,
COL1 TYPE I,
COL2 TYPE I,
END OF LINE.
DATA ITAB TYPE HASHED TABLE OF LINE WITH UNIQUE KEY COL1
WITH HEADER LINE.
DO 4 TIMES.
ITAB-COL1 = SY-INDEX.
ITAB-COL2 = SY-INDEX ** 2.
INSERT TABLE ITAB.
ENDDO.
ITAB-COL1 = 2.
READ TABLE ITAB FROM ITAB.
ITAB-COL2 = 100.
MODIFY TABLE ITAB.
ITAB-COL1 = 4.
DELETE TABLE ITAB.
LOOP AT ITAB.
WRITE: / ITAB-COL1, ITAB-COL2.
ENDLOOP.
Without header line:
TYPES: BEGIN OF LINE,
COL1 TYPE I,
COL2 TYPE I,
END OF LINE.
DATA: ITAB TYPE HASHED TABLE OF LINE WITH UNIQUE KEY COL1,
WA LIKE LINE OF ITAB.
DO 4 TIMES.
WA-COL1 = SY-INDEX.
WA-COL2 = SY-INDEX ** 2.
INSERT WA INTO TABLE ITAB.
ENDDO.
WA-COL1 = 2.
READ TABLE ITAB FROM WA INTO WA.
WA-COL2 = 100.
MODIFY TABLE ITAB FROM WA.
WA-COL1 = 4.
DELETE TABLE ITAB FROM WA.
LOOP AT ITAB INTO WA.
WRITE: / WA-COL1, WA-COL2.
ENDLOOP.
The list, in both cases, appears as follows:
1 1
2 100
3 9
The statements in the program that does not use a header line are easier to understand. As a further measure, you could have a further work area just to specify the key of the internal table, but to which no other values from the table are assigned.
Internal table with header line
you can use anywhere except obkect oriented concept.
Internal table without header line :
You should use in Object oriented concept..
Always try to use without header line,performance point of view it is best..
Example :
Without header line.
Structure
types : begin of ty_itab ,
matnr type mara-matnr,
end of ty_itab.
Internal table
data i_itab type standard table of ty_itab .
Work area
data wa_itab like line of i_itab
With header line
data : begin of i_itab occurs 0,
matnr like mara-matnr,
end of i_itab
itab with header lines are obsolete, anyway it will work but not recommended. instead use work area or more effiecient is field symbols. so donot use itab with header line.
i will explain use of itab w/o header line.
Data: itab1 type standard table of mara with header line occurs 0,
itab2 type standard table of mara,
wa_itab2 type mara.
loop at itab1.
"This will work fine.
endloop.
loop at itab2.
"This will give erro that itabd does not hav workarea
endloop.
"so write
loop at itab2 into wa_itab2.
"This will work
endloop.
The difference between
whih header line and with out heater line of internal table.
ex:-
a) Data : itab like mara occurs 0 with header line.
b) Data: itab like mara occurs 0.
-While adding or retrieving records to / from internal table we have to keep the record temporarily.
-The area where this record is kept is called as work area for the internal table.
-The area must have the same structure as that of internal table. An internal table consists of a body and an optional header line.
-Header line is a implicit work area for the internal table. It depends on how the internal table is declared that the itab will have the header line or not.
a) Data : itab like mara occurs 0 with header line.
table is with header line
b) Data: itab like mara occurs 0.
table is without header line
regards,
srinivas
*reward for useful answers*

Alternative for 'WITH HEADER LINE' ?

Hello All,
In BSP's I gues we can't use table with header lines and occurs 0.
SO whts the alternative for this ?
I want to use the FM 'GET_COMPONENT_LIST' .
To this FM I need to pass the table which is declared with occurs 0 or with header line .
Eg:
DATA: lt_cols TYPE STANDARD TABLE OF it_cols with header line.
DATA: v_count TYPE i.
CALL FUNCTION 'GET_COMPONENT_LIST'
EXPORTING
    program    = sy-repid
    fieldname = 'LT_COLS'
TABLES
    components = itab[].
DESCRIBE TABLE itab LINES v_count.
WRITE v_count.
" I've used the following code :
      DATA: ls_final_t    TYPE STANDARD TABLE OF mara initial size 10 ,
            lt_rstrucinfo TYPE TABLE OF rstrucinfo .
      CALL FUNCTION 'GET_COMPONENT_LIST'
        EXPORTING
          program    = 'CL_O243NHIEBSRAZZG8RPTVGL3YAH9CP'
          fieldname = 'LS_FINAL_T'
        TABLES
          components = lt_rstrucinfo[].
But it's not working .
I guess the problem is wid passage of parameter for program.
Bcoz i tried the same in the ABAP Program and it's working !
SO can any one tell me what to pass for the program ?
I tried with sy-repid , hardcoded my BSP application name , but none of them worked !!!
Can anyone help me out ?
Regards,
Deepu.K

Hi Depp,
The problem with your code example is that you should not have used the [] addition to the table name.
Try this...
      CALL FUNCTION 'GET_COMPONENT_LIST'
        EXPORTING
          program    = 'CL_O243NHIEBSRAZZG8RPTVGL3YAH9CP'
          fieldname = 'LS_FINAL_T'
        TABLES
          components = lt_rstrucinfo. "Note change here!
It is a good idea to get used to working with tables without header lines. I like to use data references where possible.
For example...
DATA: i_tab TYPE TABLE OF sflight,
        w_ref TYPE REF TO sflight.
* Append line to table
APPEND INITIAL LINE TO i_tab REFERENCE INTO w_ref.
w_ref->carrid = 'AA'.
w_ref->connid = '123'.
* Loop through table
LOOP AT i_tab REFERENCE INTO w_ref.
    WRITE: / `ConnID is `, w_ref->connid.
ENDLOOP.
* Read line
READ TABLE i_tab REFERENCE INTO w_ref WITH KEY connid = '123'.
Cheers
Graham Robbo

Occurs & with header line in Data definition

Hi,
i did an slin-check for one of my includes and got the following errors shown:
Abap-command is obsolete
1st: tables with headers are not supported in OO-context anymore. (message G1D)
2nd: the appendix occurs is not supported in OO-context. use "table of.... initial size" instead.
the line were the error occurs is:
DATA: BDCDATA TYPE BDCDATA OCCURS 0 WITH HEADER LINE.
what should i do here?
\[removed by moderator\]
Edited by: Jan Stallkamp on Jul 17, 2008 12:33 PM

Hi
Use
DATA: BDCDATA TYPE TABLE OF BDCDATA.
(OR)
DATA: BDCDATA TYPE <table_kind> TABLE OF BDCDATA.
(<table_kind> = Standard / Sorted / Hashed )
Hope this would help you.
Murthy

Moving data into internal table without header line

Hello experts.
i have two internal tables . itab1 without headerline and itab2 with headerline. itab1 has 10 fields and itab2 has 2 fields.
BEGIN OF itab,
 lifnr LIKE lfa1-lifnr,
 ktokk LIKE lfa1-ktokk,
 name1 LIKE lfa1-name1,
 sortl LIKE lfa1-sortl,
 pstlz LIKE lfa1-pstlz,
 ort01 LIKE lfa1-ort01,
 land1 LIKE lfa1-land1,
 j_1ipanno LIKE j_1imovend,
end of itab.
DATA: itab1 TYPE STANDARD TABLE OF itab.
data: begin of itab2 occurs 0,
 lifnr like j_1imovend-lifnr,
 j_1ipanno like j_1imovend-j_1ipanno,
end of itab2.
now i want to move the data from itab2-j_1ipanno into itab1-j_1ipanno. so pls tell me how to do that. lifnr in both the tables are the same.
thanks for all the replies.

Hi Shiva,
In with out header line,
You declare header line & body separately like
data: IT_MARA type standard table of MARA,
WA_MARA like line of IT_MARA.
Advantages:
1. Clear differentiation of header line over body
2. It is must in the ABAP Objects to have separate header line & body
3. Use ful in Nested Internal tables
Disadvantages:
1. Long syntax
for example: Loop at IT_MARA into WA_MARA.
In with header line
Data ITAB like MARA occurs 0 with header line.
Advantages:
1. Simple to use & declare over without header line.
Also,
With Header line:
codedata : itab like <dbtable> occurs 0 with header line.
Data: begin of itab occurs 0,
f1 type f1,
f2 type f2,
end of itab.[/code]
Without Header line.
codeTypes: begin of ty_tab,
f1 type f1,
f2 type f2,
end of ty_tab.
Data: itab type table of ty_tab, " Internal Table
wa type ty_tab. " Work Area[/code]
at any point of time use internal table without header line,it will be good performance as well OO ABAP will allow only internal table without header line.
Just use one simple example :
create one simple program with header line,use get run time field.
create one simple program without header line,use get run time field.
see the results ,here time will be micro seconds,so take 1000 records to internal table and do calculate the time.
While adding or retrieving records to / from internal table we have to keep the record temporarily.
The area where this record is kept is called as work area for the internal table. The area must have the same structure as that of internal table. An internal table consists of a body and an optional header line.
Header line is a implicit work area for the internal table. It depends on how the internal table is declared that the itab will have the header line or not.
e.g.
data: begin of itab occurs 10,
ab type c,
cd type i,
end of itab. " this table will have the header line.
data: wa_itab like itab. " explicit work area for itab
data: itab1 like itab occurs 10. " table is without header line.
The header line is a field string with the same structure as a row of the body, but it can only hold a single row.
It is a buffer used to hold each record before it is added or each record as it is retrieved from the internal table. It is the default work area for the internal table.
kindly reward if found helpful.
cheers,
Hema.

Error: Tables with Header line No longer Supported In WD-ABAP

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