ABAP Select data from SAP table E1WFAFVI into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP E1WFAFVI 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 E1WFAFVI. 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 E1WFAFVI 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_E1WFAFVI TYPE STANDARD TABLE OF E1WFAFVI,
      WA_E1WFAFVI TYPE E1WFAFVI,
      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: <E1WFAFVI> TYPE E1WFAFVI.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_E1WFAFVI.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM E1WFAFVI
  INTO TABLE IT_E1WFAFVI.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM E1WFAFVI
*  INTO TABLE @DATA(IT_E1WFAFVI2).
*--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_E1WFAFVI INDEX 1 INTO DATA(WA_E1WFAFVI2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_E1WFAFVI ASSIGNING <E1WFAFVI>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<E1WFAFVI>-TOTROW = 1.
<E1WFAFVI>-CURROW = 1.
<E1WFAFVI>-TOTCOL = 1.
<E1WFAFVI>-MISS1 = 1.
<E1WFAFVI>-VALUE1 = 1.

ENDLOOP.

LOOP AT IT_E1WFAFVI INTO WA_E1WFAFVI.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_E1WFAFVI-MISS2, sy-vline,
  WA_E1WFAFVI-VALUE2, sy-vline,
  WA_E1WFAFVI-MISS3, sy-vline,
  WA_E1WFAFVI-VALUE3, sy-vline,
  WA_E1WFAFVI-MISS4, sy-vline,
  WA_E1WFAFVI-VALUE4, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_E1WFAFVI 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_E1WFAFVI 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_E1WFAFVI INTO WA_E1WFAFVI.


*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_E1WFAFVI_STR, 
TOTROW TYPE STRING,
CURROW TYPE STRING,
TOTCOL TYPE STRING,
MISS1 TYPE STRING,
VALUE1 TYPE STRING,
MISS2 TYPE STRING,
VALUE2 TYPE STRING,
MISS3 TYPE STRING,
VALUE3 TYPE STRING,
MISS4 TYPE STRING,
VALUE4 TYPE STRING,
MISS5 TYPE STRING,
VALUE5 TYPE STRING,
MISS6 TYPE STRING,
VALUE6 TYPE STRING,
MISS7 TYPE STRING,
VALUE7 TYPE STRING,
MISS8 TYPE STRING,
VALUE8 TYPE STRING,
MISS9 TYPE STRING,
VALUE9 TYPE STRING,
MISS10 TYPE STRING,
VALUE10 TYPE STRING,
MISS11 TYPE STRING,
VALUE11 TYPE STRING,
MISS12 TYPE STRING,
VALUE12 TYPE STRING,
MISS13 TYPE STRING,
VALUE13 TYPE STRING,
MISS14 TYPE STRING,
VALUE14 TYPE STRING,
MISS15 TYPE STRING,
VALUE15 TYPE STRING,
MISS16 TYPE STRING,
VALUE16 TYPE STRING,
MISS17 TYPE STRING,
VALUE17 TYPE STRING,
MISS18 TYPE STRING,
VALUE18 TYPE STRING,
MISS19 TYPE STRING,
VALUE19 TYPE STRING,
MISS20 TYPE STRING,
VALUE20 TYPE STRING,
MISS21 TYPE STRING,
VALUE21 TYPE STRING,
MISS22 TYPE STRING,
VALUE22 TYPE STRING,
MISS23 TYPE STRING,
VALUE23 TYPE STRING,
MISS24 TYPE STRING,
VALUE24 TYPE STRING,
MISS25 TYPE STRING,
VALUE25 TYPE STRING,
MISS26 TYPE STRING,
VALUE26 TYPE STRING,
MISS27 TYPE STRING,
VALUE27 TYPE STRING,
MISS28 TYPE STRING,
VALUE28 TYPE STRING,
MISS29 TYPE STRING,
VALUE29 TYPE STRING,
MISS30 TYPE STRING,
VALUE30 TYPE STRING,
MISS31 TYPE STRING,
VALUE31 TYPE STRING,
MISS32 TYPE STRING,
VALUE32 TYPE STRING,
MISS33 TYPE STRING,
VALUE33 TYPE STRING,
MISS34 TYPE STRING,
VALUE34 TYPE STRING,
MISS35 TYPE STRING,
VALUE35 TYPE STRING,
MISS36 TYPE STRING,
VALUE36 TYPE STRING,
MISS37 TYPE STRING,
VALUE37 TYPE STRING,
MISS38 TYPE STRING,
VALUE38 TYPE STRING,
MISS39 TYPE STRING,
VALUE39 TYPE STRING,
MISS40 TYPE STRING,
VALUE40 TYPE STRING,
MISS41 TYPE STRING,
VALUE41 TYPE STRING,
MISS42 TYPE STRING,
VALUE42 TYPE STRING,
MISS43 TYPE STRING,
VALUE43 TYPE STRING,
MISS44 TYPE STRING,
VALUE44 TYPE STRING,
MISS45 TYPE STRING,
VALUE45 TYPE STRING,
MISS46 TYPE STRING,
VALUE46 TYPE STRING,
MISS47 TYPE STRING,
VALUE47 TYPE STRING,
MISS48 TYPE STRING,
VALUE48 TYPE STRING,
MISS49 TYPE STRING,
VALUE49 TYPE STRING,
MISS50 TYPE STRING,
VALUE50 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_E1WFAFVI_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_E1WFAFVI_STR-TOTROW sy-vline 
WA_E1WFAFVI_STR-CURROW sy-vline 
WA_E1WFAFVI_STR-TOTCOL sy-vline 
WA_E1WFAFVI_STR-MISS1 sy-vline 
WA_E1WFAFVI_STR-VALUE1 sy-vline 
WA_E1WFAFVI_STR-MISS2 sy-vline 
WA_E1WFAFVI_STR-VALUE2 sy-vline 
WA_E1WFAFVI_STR-MISS3 sy-vline 
WA_E1WFAFVI_STR-VALUE3 sy-vline 
WA_E1WFAFVI_STR-MISS4 sy-vline 
WA_E1WFAFVI_STR-VALUE4 sy-vline 
WA_E1WFAFVI_STR-MISS5 sy-vline 
WA_E1WFAFVI_STR-VALUE5 sy-vline 
WA_E1WFAFVI_STR-MISS6 sy-vline 
WA_E1WFAFVI_STR-VALUE6 sy-vline 
WA_E1WFAFVI_STR-MISS7 sy-vline 
WA_E1WFAFVI_STR-VALUE7 sy-vline 
WA_E1WFAFVI_STR-MISS8 sy-vline 
WA_E1WFAFVI_STR-VALUE8 sy-vline 
WA_E1WFAFVI_STR-MISS9 sy-vline 
WA_E1WFAFVI_STR-VALUE9 sy-vline 
WA_E1WFAFVI_STR-MISS10 sy-vline 
WA_E1WFAFVI_STR-VALUE10 sy-vline 
WA_E1WFAFVI_STR-MISS11 sy-vline 
WA_E1WFAFVI_STR-VALUE11 sy-vline 
WA_E1WFAFVI_STR-MISS12 sy-vline 
WA_E1WFAFVI_STR-VALUE12 sy-vline 
WA_E1WFAFVI_STR-MISS13 sy-vline 
WA_E1WFAFVI_STR-VALUE13 sy-vline 
WA_E1WFAFVI_STR-MISS14 sy-vline 
WA_E1WFAFVI_STR-VALUE14 sy-vline 
WA_E1WFAFVI_STR-MISS15 sy-vline 
WA_E1WFAFVI_STR-VALUE15 sy-vline 
WA_E1WFAFVI_STR-MISS16 sy-vline 
WA_E1WFAFVI_STR-VALUE16 sy-vline 
WA_E1WFAFVI_STR-MISS17 sy-vline 
WA_E1WFAFVI_STR-VALUE17 sy-vline 
WA_E1WFAFVI_STR-MISS18 sy-vline 
WA_E1WFAFVI_STR-VALUE18 sy-vline 
WA_E1WFAFVI_STR-MISS19 sy-vline 
WA_E1WFAFVI_STR-VALUE19 sy-vline 
WA_E1WFAFVI_STR-MISS20 sy-vline 
WA_E1WFAFVI_STR-VALUE20 sy-vline 
WA_E1WFAFVI_STR-MISS21 sy-vline 
WA_E1WFAFVI_STR-VALUE21 sy-vline 
WA_E1WFAFVI_STR-MISS22 sy-vline 
WA_E1WFAFVI_STR-VALUE22 sy-vline 
WA_E1WFAFVI_STR-MISS23 sy-vline 
WA_E1WFAFVI_STR-VALUE23 sy-vline 
WA_E1WFAFVI_STR-MISS24 sy-vline 
WA_E1WFAFVI_STR-VALUE24 sy-vline 
WA_E1WFAFVI_STR-MISS25 sy-vline 
WA_E1WFAFVI_STR-VALUE25 sy-vline 
WA_E1WFAFVI_STR-MISS26 sy-vline 
WA_E1WFAFVI_STR-VALUE26 sy-vline 
WA_E1WFAFVI_STR-MISS27 sy-vline 
WA_E1WFAFVI_STR-VALUE27 sy-vline 
WA_E1WFAFVI_STR-MISS28 sy-vline 
WA_E1WFAFVI_STR-VALUE28 sy-vline 
WA_E1WFAFVI_STR-MISS29 sy-vline 
WA_E1WFAFVI_STR-VALUE29 sy-vline 
WA_E1WFAFVI_STR-MISS30 sy-vline 
WA_E1WFAFVI_STR-VALUE30 sy-vline 
WA_E1WFAFVI_STR-MISS31 sy-vline 
WA_E1WFAFVI_STR-VALUE31 sy-vline 
WA_E1WFAFVI_STR-MISS32 sy-vline 
WA_E1WFAFVI_STR-VALUE32 sy-vline 
WA_E1WFAFVI_STR-MISS33 sy-vline 
WA_E1WFAFVI_STR-VALUE33 sy-vline 
WA_E1WFAFVI_STR-MISS34 sy-vline 
WA_E1WFAFVI_STR-VALUE34 sy-vline 
WA_E1WFAFVI_STR-MISS35 sy-vline 
WA_E1WFAFVI_STR-VALUE35 sy-vline 
WA_E1WFAFVI_STR-MISS36 sy-vline 
WA_E1WFAFVI_STR-VALUE36 sy-vline 
WA_E1WFAFVI_STR-MISS37 sy-vline 
WA_E1WFAFVI_STR-VALUE37 sy-vline 
WA_E1WFAFVI_STR-MISS38 sy-vline 
WA_E1WFAFVI_STR-VALUE38 sy-vline 
WA_E1WFAFVI_STR-MISS39 sy-vline 
WA_E1WFAFVI_STR-VALUE39 sy-vline 
WA_E1WFAFVI_STR-MISS40 sy-vline 
WA_E1WFAFVI_STR-VALUE40 sy-vline 
WA_E1WFAFVI_STR-MISS41 sy-vline 
WA_E1WFAFVI_STR-VALUE41 sy-vline 
WA_E1WFAFVI_STR-MISS42 sy-vline 
WA_E1WFAFVI_STR-VALUE42 sy-vline 
WA_E1WFAFVI_STR-MISS43 sy-vline 
WA_E1WFAFVI_STR-VALUE43 sy-vline 
WA_E1WFAFVI_STR-MISS44 sy-vline 
WA_E1WFAFVI_STR-VALUE44 sy-vline 
WA_E1WFAFVI_STR-MISS45 sy-vline 
WA_E1WFAFVI_STR-VALUE45 sy-vline 
WA_E1WFAFVI_STR-MISS46 sy-vline 
WA_E1WFAFVI_STR-VALUE46 sy-vline 
WA_E1WFAFVI_STR-MISS47 sy-vline 
WA_E1WFAFVI_STR-VALUE47 sy-vline 
WA_E1WFAFVI_STR-MISS48 sy-vline 
WA_E1WFAFVI_STR-VALUE48 sy-vline 
WA_E1WFAFVI_STR-MISS49 sy-vline 
WA_E1WFAFVI_STR-VALUE49 sy-vline 
WA_E1WFAFVI_STR-MISS50 sy-vline 
WA_E1WFAFVI_STR-VALUE50 sy-vline      INTO ld_text SEPARATED BY SPACE.

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