ABAP Select data from SAP table AFKO_UPD_VS2OP into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP AFKO_UPD_VS2OP 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 AFKO_UPD_VS2OP. 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 AFKO_UPD_VS2OP 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_AFKO_UPD_VS2OP TYPE STANDARD TABLE OF AFKO_UPD_VS2OP,
      WA_AFKO_UPD_VS2OP TYPE AFKO_UPD_VS2OP,
      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: <AFKO_UPD_VS2OP> TYPE AFKO_UPD_VS2OP.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_AFKO_UPD_VS2OP.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM AFKO_UPD_VS2OP
  INTO TABLE IT_AFKO_UPD_VS2OP.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM AFKO_UPD_VS2OP
*  INTO TABLE @DATA(IT_AFKO_UPD_VS2OP2).
*--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_AFKO_UPD_VS2OP INDEX 1 INTO DATA(WA_AFKO_UPD_VS2OP2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_AFKO_UPD_VS2OP ASSIGNING <AFKO_UPD_VS2OP>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<AFKO_UPD_VS2OP>-MANDT = 1.
<AFKO_UPD_VS2OP>-AUFNR = 1.
<AFKO_UPD_VS2OP>-AUFPL = 1.
<AFKO_UPD_VS2OP>-RSNUM = 1.
<AFKO_UPD_VS2OP>-BEDID = 1.

ENDLOOP.

LOOP AT IT_AFKO_UPD_VS2OP INTO WA_AFKO_UPD_VS2OP.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_AFKO_UPD_VS2OP-RUECK, sy-vline,
  WA_AFKO_UPD_VS2OP-RMZHL, sy-vline,
  WA_AFKO_UPD_VS2OP-ARSNR, sy-vline,
  WA_AFKO_UPD_VS2OP-ARSPS, sy-vline,
  WA_AFKO_UPD_VS2OP-LKNOT, sy-vline,
  WA_AFKO_UPD_VS2OP-RKNOT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_AFKO_UPD_VS2OP 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_AFKO_UPD_VS2OP 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_AFKO_UPD_VS2OP INTO WA_AFKO_UPD_VS2OP.


*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_AFKO_UPD_VS2OP-AUFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AFKO_UPD_VS2OP-AUFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LKNOT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_AFKO_UPD_VS2OP-LKNOT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AFKO_UPD_VS2OP-LKNOT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RKNOT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_AFKO_UPD_VS2OP-RKNOT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AFKO_UPD_VS2OP-RKNOT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field MAUFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_AFKO_UPD_VS2OP-MAUFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AFKO_UPD_VS2OP-MAUFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LEAD_AUFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_AFKO_UPD_VS2OP-LEAD_AUFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AFKO_UPD_VS2OP-LEAD_AUFNR.
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_AFKO_UPD_VS2OP_STR, 
MANDT TYPE STRING,
AUFNR TYPE STRING,
AUFPL TYPE STRING,
RSNUM TYPE STRING,
BEDID TYPE STRING,
RUECK TYPE STRING,
RMZHL TYPE STRING,
ARSNR TYPE STRING,
ARSPS TYPE STRING,
LKNOT TYPE STRING,
RKNOT TYPE STRING,
MAUFNR TYPE STRING,
LEAD_AUFNR TYPE STRING,
GSTRI TYPE STRING,
GETRI TYPE STRING,
GLTRI TYPE STRING,
FTRMI TYPE STRING,
IGMNG TYPE STRING,
IASMG TYPE STRING,
ABARB TYPE STRING,
GSUZI TYPE STRING,
GEUZI TYPE STRING,
KZERB TYPE STRING,END OF T_EKKO_STR.
DATA: WA_AFKO_UPD_VS2OP_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_AFKO_UPD_VS2OP_STR-MANDT sy-vline 
WA_AFKO_UPD_VS2OP_STR-AUFNR sy-vline 
WA_AFKO_UPD_VS2OP_STR-AUFPL sy-vline 
WA_AFKO_UPD_VS2OP_STR-RSNUM sy-vline 
WA_AFKO_UPD_VS2OP_STR-BEDID sy-vline 
WA_AFKO_UPD_VS2OP_STR-RUECK sy-vline 
WA_AFKO_UPD_VS2OP_STR-RMZHL sy-vline 
WA_AFKO_UPD_VS2OP_STR-ARSNR sy-vline 
WA_AFKO_UPD_VS2OP_STR-ARSPS sy-vline 
WA_AFKO_UPD_VS2OP_STR-LKNOT sy-vline 
WA_AFKO_UPD_VS2OP_STR-RKNOT sy-vline 
WA_AFKO_UPD_VS2OP_STR-MAUFNR sy-vline 
WA_AFKO_UPD_VS2OP_STR-LEAD_AUFNR sy-vline 
WA_AFKO_UPD_VS2OP_STR-GSTRI sy-vline 
WA_AFKO_UPD_VS2OP_STR-GETRI sy-vline 
WA_AFKO_UPD_VS2OP_STR-GLTRI sy-vline 
WA_AFKO_UPD_VS2OP_STR-FTRMI sy-vline 
WA_AFKO_UPD_VS2OP_STR-IGMNG sy-vline 
WA_AFKO_UPD_VS2OP_STR-IASMG sy-vline 
WA_AFKO_UPD_VS2OP_STR-ABARB sy-vline 
WA_AFKO_UPD_VS2OP_STR-GSUZI sy-vline 
WA_AFKO_UPD_VS2OP_STR-GEUZI sy-vline 
WA_AFKO_UPD_VS2OP_STR-KZERB sy-vline      INTO ld_text SEPARATED BY SPACE.

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