ABAP Select data from SAP table VSSFARGS into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP VSSFARGS table and store it within an internal table, including using the newer @DATA inline declaration methods. It also shows you various ways to process this data using ABAP work area, inline declaration or field symbols including executing all the relevant CONVERSION_EXIT routines specific to VSSFARGS. See here for more generic Select statement tips.

Sometimes data within SAP is stored within the database table in a different format to what it is displayed to the user. These input/output conversation FM routines are what translates the data between the two formats.

There is also a full declaration of the VSSFARGS table where each field has a char/string type for you to simply copy and paste. This allows you to use processing that is only available to these field types such as the CONCATENATE statement.

DATA: IT_VSSFARGS TYPE STANDARD TABLE OF VSSFARGS,
      WA_VSSFARGS TYPE VSSFARGS,
      GD_STR TYPE STRING.

DATA: lo_typedescr type REF TO cl_abap_typedescr.
DATA: lv_fieldname type fieldname.

FIELD-SYMBOLS: <FIELD> TYPE any.
FIELD-SYMBOLS: <VSSFARGS> TYPE VSSFARGS.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_VSSFARGS.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM VSSFARGS
  INTO TABLE IT_VSSFARGS.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VSSFARGS
*  INTO TABLE @DATA(IT_VSSFARGS2).
*--Further methods of using ABAP code to  select data from SAP database tables

*You can also declare the header/work area using the in-line DATA declaration method
READ TABLE IT_VSSFARGS INDEX 1 INTO DATA(WA_VSSFARGS2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_VSSFARGS ASSIGNING <VSSFARGS>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VSSFARGS>-MANDT = 1.
<VSSFARGS>-APPLIC = 1.
<VSSFARGS>-SSFTOOLKIT = 1.
<VSSFARGS>-SSFFORMAT = 1.
<VSSFARGS>-PAB = 1.

ENDLOOP.

LOOP AT IT_VSSFARGS INTO WA_VSSFARGS.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VSSFARGS-PABPW, sy-vline,
  WA_VSSFARGS-PROFILEID, sy-vline,
  WA_VSSFARGS-PROFILE, sy-vline,
  WA_VSSFARGS-PROFILEPW, sy-vline,
  WA_VSSFARGS-HASHALG, sy-vline,
  WA_VSSFARGS-ENCRALG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VSSFARGS you want to display...

  WRITE:/ sy-uline.
* Aternatively use generic code to Write field values (and NAME) to screen report
  DO.
    ASSIGN COMPONENT sy-index OF STRUCTURE wa_VSSFARGS TO <field>.
    IF sy-subrc <> 0. EXIT. ENDIF.
    WRITE:/ 'Field Value', <field>, sy-vline.
    gd_str = <field> .
    lo_typedescr ?= CL_ABAP_DATADESCR=>DESCRIBE_BY_DATA( <field> ).
    lv_fieldname = lo_typedescr->GET_RELATIVE_NAME( ).
    WRITE:/ 'Field Name', lv_fieldname.
  ENDDO.

  
*Redo loop but convert all fields from internal to out value  
LOOP AT IT_VSSFARGS INTO WA_VSSFARGS.


*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Convert all fields to display/output versions using conversion routines
  PERFORM convert_all_field_values CHANGING wa_EKKO.
	 
ENDLOOP.

  
*&---------------------------------------------------------------------*
*& Form convert_all_field_values
*&---------------------------------------------------------------------*
FORM convert_all_field_values CHANGING p_EKKO LIKE wa_EKKO.
DATA: ld_input(1000) TYPE c, ld_output(1000) TYPE C.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_VSSFARGS_STR, 
MANDT TYPE STRING,
APPLIC TYPE STRING,
SSFTOOLKIT TYPE STRING,
SSFFORMAT TYPE STRING,
PAB TYPE STRING,
PABPW TYPE STRING,
PROFILEID TYPE STRING,
PROFILE TYPE STRING,
PROFILEPW TYPE STRING,
HASHALG TYPE STRING,
ENCRALG TYPE STRING,
INCCERTS TYPE STRING,
DETACHED TYPE STRING,
ASK_PWD TYPE STRING,
DISTRIB TYPE STRING,
EXPLICIT TYPE STRING,
B_TOOLKIT TYPE STRING,
B_FORMAT TYPE STRING,
B_PAB TYPE STRING,
B_PROFID TYPE STRING,
B_PROFILE TYPE STRING,
B_HASHALG TYPE STRING,
B_ENCRALG TYPE STRING,
B_INCCERTS TYPE STRING,
B_DETACHED TYPE STRING,
B_ASKPWD TYPE STRING,
B_DISTRIB TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VSSFARGS_STR type T_EKKO_STR.

DATA: ld_text TYPE string.

LOOP AT IT_EKKO INTO WA_EKKO.
  MOVE-CORRESPONDING wa_EKKO TO WA_EKKO_STR.
  CONCATENATE: sy-vline
WA_VSSFARGS_STR-MANDT sy-vline 
WA_VSSFARGS_STR-APPLIC sy-vline 
WA_VSSFARGS_STR-SSFTOOLKIT sy-vline 
WA_VSSFARGS_STR-SSFFORMAT sy-vline 
WA_VSSFARGS_STR-PAB sy-vline 
WA_VSSFARGS_STR-PABPW sy-vline 
WA_VSSFARGS_STR-PROFILEID sy-vline 
WA_VSSFARGS_STR-PROFILE sy-vline 
WA_VSSFARGS_STR-PROFILEPW sy-vline 
WA_VSSFARGS_STR-HASHALG sy-vline 
WA_VSSFARGS_STR-ENCRALG sy-vline 
WA_VSSFARGS_STR-INCCERTS sy-vline 
WA_VSSFARGS_STR-DETACHED sy-vline 
WA_VSSFARGS_STR-ASK_PWD sy-vline 
WA_VSSFARGS_STR-DISTRIB sy-vline 
WA_VSSFARGS_STR-EXPLICIT sy-vline 
WA_VSSFARGS_STR-B_TOOLKIT sy-vline 
WA_VSSFARGS_STR-B_FORMAT sy-vline 
WA_VSSFARGS_STR-B_PAB sy-vline 
WA_VSSFARGS_STR-B_PROFID sy-vline 
WA_VSSFARGS_STR-B_PROFILE sy-vline 
WA_VSSFARGS_STR-B_HASHALG sy-vline 
WA_VSSFARGS_STR-B_ENCRALG sy-vline 
WA_VSSFARGS_STR-B_INCCERTS sy-vline 
WA_VSSFARGS_STR-B_DETACHED sy-vline 
WA_VSSFARGS_STR-B_ASKPWD sy-vline 
WA_VSSFARGS_STR-B_DISTRIB sy-vline      INTO ld_text SEPARATED BY SPACE.

*Add any further fields from structure WA_EKKO_STR you want to CONCATENATE...
ENDLOOP.
ENDFORM.