ABAP Select data from SAP table CSAPI_AFVGD into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CSAPI_AFVGD
*  INTO TABLE @DATA(IT_CSAPI_AFVGD2).
*--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_CSAPI_AFVGD INDEX 1 INTO DATA(WA_CSAPI_AFVGD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CSAPI_AFVGD>-VORNR = 1.
<CSAPI_AFVGD>-ARBID = 1.
<CSAPI_AFVGD>-STEUS = 1.
<CSAPI_AFVGD>-LTXA1 = 1.
<CSAPI_AFVGD>-ARBEI = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CSAPI_AFVGD-ARBEH, sy-vline,
  WA_CSAPI_AFVGD-LARNT, sy-vline,
  WA_CSAPI_AFVGD-DAUNO, sy-vline,
  WA_CSAPI_AFVGD-DAUNE, sy-vline,
  WA_CSAPI_AFVGD-ANZZL, sy-vline,
  WA_CSAPI_AFVGD-INDET, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CSAPI_AFVGD 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_CSAPI_AFVGD 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_CSAPI_AFVGD INTO WA_CSAPI_AFVGD.


*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.

*Conversion exit NUMCV, internal->external for field VORNR
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_CSAPI_AFVGD-VORNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CSAPI_AFVGD-VORNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field ARBEH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CSAPI_AFVGD-ARBEH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CSAPI_AFVGD-ARBEH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field DAUNE
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CSAPI_AFVGD-DAUNE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CSAPI_AFVGD-DAUNE.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

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

TYPES: BEGIN OF T_CSAPI_AFVGD_STR, 
VORNR TYPE STRING,
ARBID TYPE STRING,
STEUS TYPE STRING,
LTXA1 TYPE STRING,
ARBEI TYPE STRING,
ARBEH TYPE STRING,
LARNT TYPE STRING,
DAUNO TYPE STRING,
DAUNE TYPE STRING,
ANZZL TYPE STRING,
INDET TYPE STRING,
EINSA TYPE STRING,
EINSE TYPE STRING,
NTANF TYPE STRING,
NTANZ TYPE STRING,
NTEND TYPE STRING,
NTENZ TYPE STRING,
PERNR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CSAPI_AFVGD_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_CSAPI_AFVGD_STR-VORNR sy-vline 
WA_CSAPI_AFVGD_STR-ARBID sy-vline 
WA_CSAPI_AFVGD_STR-STEUS sy-vline 
WA_CSAPI_AFVGD_STR-LTXA1 sy-vline 
WA_CSAPI_AFVGD_STR-ARBEI sy-vline 
WA_CSAPI_AFVGD_STR-ARBEH sy-vline 
WA_CSAPI_AFVGD_STR-LARNT sy-vline 
WA_CSAPI_AFVGD_STR-DAUNO sy-vline 
WA_CSAPI_AFVGD_STR-DAUNE sy-vline 
WA_CSAPI_AFVGD_STR-ANZZL sy-vline 
WA_CSAPI_AFVGD_STR-INDET sy-vline 
WA_CSAPI_AFVGD_STR-EINSA sy-vline 
WA_CSAPI_AFVGD_STR-EINSE sy-vline 
WA_CSAPI_AFVGD_STR-NTANF sy-vline 
WA_CSAPI_AFVGD_STR-NTANZ sy-vline 
WA_CSAPI_AFVGD_STR-NTEND sy-vline 
WA_CSAPI_AFVGD_STR-NTENZ sy-vline 
WA_CSAPI_AFVGD_STR-PERNR sy-vline      INTO ld_text SEPARATED BY SPACE.

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