ABAP Select data from SAP table AFPO_UPD_OP2VS into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP AFPO_UPD_OP2VS 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_UPD_OP2VS. 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_UPD_OP2VS 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_UPD_OP2VS TYPE STANDARD TABLE OF AFPO_UPD_OP2VS,
      WA_AFPO_UPD_OP2VS TYPE AFPO_UPD_OP2VS,
      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_UPD_OP2VS> TYPE AFPO_UPD_OP2VS.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_AFPO_UPD_OP2VS.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM AFPO_UPD_OP2VS
  INTO TABLE IT_AFPO_UPD_OP2VS.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM AFPO_UPD_OP2VS
*  INTO TABLE @DATA(IT_AFPO_UPD_OP2VS2).
*--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_UPD_OP2VS INDEX 1 INTO DATA(WA_AFPO_UPD_OP2VS2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_AFPO_UPD_OP2VS ASSIGNING <AFPO_UPD_OP2VS>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<AFPO_UPD_OP2VS>-MANDT = 1.
<AFPO_UPD_OP2VS>-AUFNR = 1.
<AFPO_UPD_OP2VS>-POSNR = 1.
<AFPO_UPD_OP2VS>-QUNUM = 1.
<AFPO_UPD_OP2VS>-QUPOS = 1.

ENDLOOP.

LOOP AT IT_AFPO_UPD_OP2VS INTO WA_AFPO_UPD_OP2VS.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_AFPO_UPD_OP2VS-PROJN, sy-vline,
  WA_AFPO_UPD_OP2VS-PLNUM, sy-vline,
  WA_AFPO_UPD_OP2VS-KDAUF, sy-vline,
  WA_AFPO_UPD_OP2VS-KDPOS, sy-vline,
  WA_AFPO_UPD_OP2VS-KDEIN, sy-vline,
  WA_AFPO_UPD_OP2VS-SAFNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_AFPO_UPD_OP2VS 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_UPD_OP2VS 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_UPD_OP2VS INTO WA_AFPO_UPD_OP2VS.


*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
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_AFPO_UPD_OP2VS-AUFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AFPO_UPD_OP2VS-AUFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field QUNUM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_AFPO_UPD_OP2VS-QUNUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AFPO_UPD_OP2VS-QUNUM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSP, internal->external for field PROJN
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_AFPO_UPD_OP2VS-PROJN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AFPO_UPD_OP2VS-PROJN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PLNUM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_AFPO_UPD_OP2VS-PLNUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AFPO_UPD_OP2VS-PLNUM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KDAUF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_AFPO_UPD_OP2VS-KDAUF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AFPO_UPD_OP2VS-KDAUF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SAFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_AFPO_UPD_OP2VS-SAFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AFPO_UPD_OP2VS-SAFNR.
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_UPD_OP2VS_STR, 
MANDT TYPE STRING,
AUFNR TYPE STRING,
POSNR TYPE STRING,
QUNUM TYPE STRING,
QUPOS TYPE STRING,
PROJN TYPE STRING,
PLNUM TYPE STRING,
KDAUF TYPE STRING,
KDPOS TYPE STRING,
KDEIN TYPE STRING,
SAFNR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_AFPO_UPD_OP2VS_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_UPD_OP2VS_STR-MANDT sy-vline 
WA_AFPO_UPD_OP2VS_STR-AUFNR sy-vline 
WA_AFPO_UPD_OP2VS_STR-POSNR sy-vline 
WA_AFPO_UPD_OP2VS_STR-QUNUM sy-vline 
WA_AFPO_UPD_OP2VS_STR-QUPOS sy-vline 
WA_AFPO_UPD_OP2VS_STR-PROJN sy-vline 
WA_AFPO_UPD_OP2VS_STR-PLNUM sy-vline 
WA_AFPO_UPD_OP2VS_STR-KDAUF sy-vline 
WA_AFPO_UPD_OP2VS_STR-KDPOS sy-vline 
WA_AFPO_UPD_OP2VS_STR-KDEIN sy-vline 
WA_AFPO_UPD_OP2VS_STR-SAFNR sy-vline      INTO ld_text SEPARATED BY SPACE.

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