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giusfg32
Explorer

Hello everyone, I want to share with you some information (hopefully useful) about exporting a table to a .csv file in ABAP.


While debugging, I noticed that many people don't use the standard SAP_CONVERT_TO_CSV_FORMAT Function Module to export tables to a .csv file.

Investigating the reason I saw that in the versions of SAP I use there is a comment according to which the standard FM does not manage the possibility of inserting a header line in the .csv file.

The FM SAP_CONVERT_TO_CSV_FORMAT has, in fact, an input parameter I_LINE_HEADER which, if set, would allow you to insert the header line in the file. However, examining the code I found this comment within the FM SAP_CONVERT_TO_TEX_FORMAT (called within the FM SAP_CONVERT_TO_CSV_FORMAT):


 

To overcome this obstacle, I have written a few lines of code (a draft), which I want to share with you, which allows you to obtain the header line and add it to the .csv file using the table inserted as input in the FM SAP_CONVERT_TO_CSV_FORMAT:

(I specify that this code is a part of a larger code section)
DATA:
l_help_id LIKE tline-tdline,
l_struc_index LIKE sy-index.

DATA ls_dfies TYPE dfies.

DATA: itab1 TYPE truxs_t_text_data.

DATA: BEGIN OF ls_name,
label TYPE string,
END OF ls_name,
lt_name LIKE STANDARD TABLE OF ls_name.

DATA: lv_table_name TYPE ddobjname,
lv_field_name TYPE dfies-lfieldname.

DATA: BEGIN OF ls_file,
lv_header(15000) TYPE c,
END OF ls_file,
lt_file LIKE STANDARD TABLE OF ls_file.

FIELD-SYMBOLS: <f_source>.

DATA: lt_table TYPE TABLE OF "table to export",
ls_table LIKE LINE OF lt_table.

DATA lv_header_line TYPE c.

DATA lv_header(15000) TYPE c.

REFRESH: lt_name[], lt_table[].
CLEAR: l_struc_index, lv_header_line.

lt_table[] = "table to export".

IF lv_header_line EQ 'X'.

READ TABLE lt_table INTO ls_table INDEX 1.
DO.
l_struc_index = l_struc_index + 1.
UNASSIGN <f_source>.
ASSIGN COMPONENT l_struc_index OF
STRUCTURE ls_table TO <f_source>.
IF sy-subrc <> 0.
EXIT.
ELSE.

ASSIGN COMPONENT l_struc_index OF
STRUCTURE ls_table TO <f_source>.
DESCRIBE FIELD <f_source> HELP-ID l_help_id.
CONDENSE l_help_id.
CLEAR: lv_table_name, lv_field_name.
SPLIT l_help_id AT '-' INTO lv_table_name lv_field_name.

CALL FUNCTION 'DDIF_FIELDINFO_GET'
EXPORTING
tabname = lv_table_name
langu = sy-langu
lfieldname = lv_field_name
all_types = 'X'
IMPORTING
dfies_wa = ls_dfies
EXCEPTIONS
not_found = 1
OTHERS = 3.
CASE sy-subrc.
WHEN 0.
CLEAR ls_name.
IF ls_dfies-fieldtext NE ''.
ls_name-label = ls_dfies-fieldtext.
ELSE.
ls_name-label = ''.
ENDIF.
APPEND ls_name TO lt_name.
WHEN 1.
RAISE not_found.
WHEN OTHERS.
RAISE internal_error.
ENDCASE.

ENDIF.

ENDDO.

CLEAR ls_name.

LOOP AT lt_name INTO ls_name.
IF sy-tabix EQ 1.
lv_header = ls_name-label.
ELSE.
CONCATENATE lv_header ';' ls_name-label INTO lv_header.
ENDIF.
ENDLOOP.

APPEND lv_header TO lt_file.

ENDIF.



 

At this point we can hang the converted file with the FM SAP_CONVERT_TO_CSV_FORMAT to lt_file.

In summary, in this post I wanted to share a code that I wrote to get the header to add to a csv file produced by an FM implemented by SAP (since this function module does not manage this functionality)

I am also writing two links related to posts in which we talk about exporting an internal table to an Excel file:

https://blogs.sap.com/2021/06/09/easy-way-to-download-internal-table-data-to-an-excel-file-in-the-pr...

https://answers.sap.com/questions/4315311/download-internal-table-to-excel-with-header.html

I hope this information will be useful to you.
See you in the next post.
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