ABAP Select data from SAP table AFPO_CLEAR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM AFPO_CLEAR
*  INTO TABLE @DATA(IT_AFPO_CLEAR2).
*--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_AFPO_CLEAR INDEX 1 INTO DATA(WA_AFPO_CLEAR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<AFPO_CLEAR>-VBKZ = 1.
<AFPO_CLEAR>-FLG_SEL = 1.
<AFPO_CLEAR>-AUFNR_T = 1.
<AFPO_CLEAR>-FLG_CALCUL = 1.
<AFPO_CLEAR>-INSNC = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_AFPO_CLEAR-USEQU, sy-vline,
  WA_AFPO_CLEAR-FHWTX, sy-vline,
  WA_AFPO_CLEAR-SOPNR, sy-vline,
  WA_AFPO_CLEAR-KUNNR, sy-vline,
  WA_AFPO_CLEAR-NAME1, sy-vline,
  WA_AFPO_CLEAR-KWMENG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_AFPO_CLEAR 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_AFPO_CLEAR 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_AFPO_CLEAR INTO WA_AFPO_CLEAR.


*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 ALPHA, internal->external for field AUFNR_T
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_AFPO_CLEAR-AUFNR_T
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AFPO_CLEAR-AUFNR_T.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KUNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_AFPO_CLEAR-KUNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AFPO_CLEAR-KUNNR.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ALPHA, internal->external for field QUNUM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_AFPO_CLEAR-QUNUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AFPO_CLEAR-QUNUM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PLNUM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_AFPO_CLEAR-PLNUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AFPO_CLEAR-PLNUM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KDAUF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_AFPO_CLEAR-KDAUF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AFPO_CLEAR-KDAUF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SAFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_AFPO_CLEAR-SAFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AFPO_CLEAR-SAFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSP, internal->external for field PROJN
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_AFPO_CLEAR-PROJN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AFPO_CLEAR-PROJN.
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_AFPO_CLEAR_STR, 
VBKZ TYPE STRING,
FLG_SEL TYPE STRING,
AUFNR_T TYPE STRING,
FLG_CALCUL TYPE STRING,
INSNC TYPE STRING,
USEQU TYPE STRING,
FHWTX TYPE STRING,
SOPNR TYPE STRING,
KUNNR TYPE STRING,
NAME1 TYPE STRING,
KWMENG TYPE STRING,
VRKME TYPE STRING,
BMENG TYPE STRING,
VSMNG TYPE STRING,
KETDAT TYPE STRING,
BDATU TYPE STRING,
STTXP TYPE STRING,
ORT01 TYPE STRING,
VDATU TYPE STRING,
PARBK TYPE STRING,
WPSMNG TYPE STRING,
WMEINH TYPE STRING,
KZWSO TYPE STRING,
EDATU TYPE STRING,
SERCOM TYPE STRING,
COMP_RES TYPE STRING,
NO_KALKPOS TYPE STRING,
EXT_CONVERSION TYPE STRING,
PAMNG TYPE STRING,
PSOBS TYPE STRING,
QUNUM TYPE STRING,
QUPOS TYPE STRING,
PLNUM TYPE STRING,
STRMP TYPE STRING,
ETRMP TYPE STRING,
KDAUF TYPE STRING,
KDPOS TYPE STRING,
KDEIN TYPE STRING,
WEMNG TYPE STRING,
IAMNG TYPE STRING,
PGMNG TYPE STRING,
TPAUF TYPE STRING,
LTRMI TYPE STRING,
LTRMP TYPE STRING,
KALNR TYPE STRING,
WEPOS TYPE STRING,
WEBAZ TYPE STRING,
ELIKZ TYPE STRING,
SAFNR TYPE STRING,
DGLTP TYPE STRING,
CHARG TYPE STRING,
BWTAR TYPE STRING,
DGLTS TYPE STRING,
DFREI TYPE STRING,
DNREL TYPE STRING,
KZVBR TYPE STRING,
WEWRT TYPE STRING,
WEUNB TYPE STRING,
WEAED TYPE STRING,
PROJN TYPE STRING,
SOBKZ TYPE STRING,
KNTTP TYPE STRING,
ANZSN TYPE STRING,
VFMNG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_AFPO_CLEAR_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_AFPO_CLEAR_STR-VBKZ sy-vline 
WA_AFPO_CLEAR_STR-FLG_SEL sy-vline 
WA_AFPO_CLEAR_STR-AUFNR_T sy-vline 
WA_AFPO_CLEAR_STR-FLG_CALCUL sy-vline 
WA_AFPO_CLEAR_STR-INSNC sy-vline 
WA_AFPO_CLEAR_STR-USEQU sy-vline 
WA_AFPO_CLEAR_STR-FHWTX sy-vline 
WA_AFPO_CLEAR_STR-SOPNR sy-vline 
WA_AFPO_CLEAR_STR-KUNNR sy-vline 
WA_AFPO_CLEAR_STR-NAME1 sy-vline 
WA_AFPO_CLEAR_STR-KWMENG sy-vline 
WA_AFPO_CLEAR_STR-VRKME sy-vline 
WA_AFPO_CLEAR_STR-BMENG sy-vline 
WA_AFPO_CLEAR_STR-VSMNG sy-vline 
WA_AFPO_CLEAR_STR-KETDAT sy-vline 
WA_AFPO_CLEAR_STR-BDATU sy-vline 
WA_AFPO_CLEAR_STR-STTXP sy-vline 
WA_AFPO_CLEAR_STR-ORT01 sy-vline 
WA_AFPO_CLEAR_STR-VDATU sy-vline 
WA_AFPO_CLEAR_STR-PARBK sy-vline 
WA_AFPO_CLEAR_STR-WPSMNG sy-vline 
WA_AFPO_CLEAR_STR-WMEINH sy-vline 
WA_AFPO_CLEAR_STR-KZWSO sy-vline 
WA_AFPO_CLEAR_STR-EDATU sy-vline 
WA_AFPO_CLEAR_STR-SERCOM sy-vline 
WA_AFPO_CLEAR_STR-COMP_RES sy-vline 
WA_AFPO_CLEAR_STR-NO_KALKPOS sy-vline 
WA_AFPO_CLEAR_STR-EXT_CONVERSION sy-vline 
WA_AFPO_CLEAR_STR-PAMNG sy-vline 
WA_AFPO_CLEAR_STR-PSOBS sy-vline 
WA_AFPO_CLEAR_STR-QUNUM sy-vline 
WA_AFPO_CLEAR_STR-QUPOS sy-vline 
WA_AFPO_CLEAR_STR-PLNUM sy-vline 
WA_AFPO_CLEAR_STR-STRMP sy-vline 
WA_AFPO_CLEAR_STR-ETRMP sy-vline 
WA_AFPO_CLEAR_STR-KDAUF sy-vline 
WA_AFPO_CLEAR_STR-KDPOS sy-vline 
WA_AFPO_CLEAR_STR-KDEIN sy-vline 
WA_AFPO_CLEAR_STR-WEMNG sy-vline 
WA_AFPO_CLEAR_STR-IAMNG sy-vline 
WA_AFPO_CLEAR_STR-PGMNG sy-vline 
WA_AFPO_CLEAR_STR-TPAUF sy-vline 
WA_AFPO_CLEAR_STR-LTRMI sy-vline 
WA_AFPO_CLEAR_STR-LTRMP sy-vline 
WA_AFPO_CLEAR_STR-KALNR sy-vline 
WA_AFPO_CLEAR_STR-WEPOS sy-vline 
WA_AFPO_CLEAR_STR-WEBAZ sy-vline 
WA_AFPO_CLEAR_STR-ELIKZ sy-vline 
WA_AFPO_CLEAR_STR-SAFNR sy-vline 
WA_AFPO_CLEAR_STR-DGLTP sy-vline 
WA_AFPO_CLEAR_STR-CHARG sy-vline 
WA_AFPO_CLEAR_STR-BWTAR sy-vline 
WA_AFPO_CLEAR_STR-DGLTS sy-vline 
WA_AFPO_CLEAR_STR-DFREI sy-vline 
WA_AFPO_CLEAR_STR-DNREL sy-vline 
WA_AFPO_CLEAR_STR-KZVBR sy-vline 
WA_AFPO_CLEAR_STR-WEWRT sy-vline 
WA_AFPO_CLEAR_STR-WEUNB sy-vline 
WA_AFPO_CLEAR_STR-WEAED sy-vline 
WA_AFPO_CLEAR_STR-PROJN sy-vline 
WA_AFPO_CLEAR_STR-SOBKZ sy-vline 
WA_AFPO_CLEAR_STR-KNTTP sy-vline 
WA_AFPO_CLEAR_STR-ANZSN sy-vline 
WA_AFPO_CLEAR_STR-VFMNG sy-vline      INTO ld_text SEPARATED BY SPACE.

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