ABAP Select data from SAP table ACT01_UPD_VS2VS into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP ACT01_UPD_VS2VS 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 ACT01_UPD_VS2VS. 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 ACT01_UPD_VS2VS 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_ACT01_UPD_VS2VS TYPE STANDARD TABLE OF ACT01_UPD_VS2VS,
      WA_ACT01_UPD_VS2VS TYPE ACT01_UPD_VS2VS,
      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: <ACT01_UPD_VS2VS> TYPE ACT01_UPD_VS2VS.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_ACT01_UPD_VS2VS.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM ACT01_UPD_VS2VS
  INTO TABLE IT_ACT01_UPD_VS2VS.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ACT01_UPD_VS2VS
*  INTO TABLE @DATA(IT_ACT01_UPD_VS2VS2).
*--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_ACT01_UPD_VS2VS INDEX 1 INTO DATA(WA_ACT01_UPD_VS2VS2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_ACT01_UPD_VS2VS ASSIGNING <ACT01_UPD_VS2VS>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ACT01_UPD_VS2VS>-MANDT = 1.
<ACT01_UPD_VS2VS>-AUFPL = 1.
<ACT01_UPD_VS2VS>-APLZL = 1.
<ACT01_UPD_VS2VS>-SUMNR = 1.
<ACT01_UPD_VS2VS>-APLFL = 1.

ENDLOOP.

LOOP AT IT_ACT01_UPD_VS2VS INTO WA_ACT01_UPD_VS2VS.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ACT01_UPD_VS2VS-RUECK, sy-vline,
  WA_ACT01_UPD_VS2VS-RMZHL, sy-vline,
  WA_ACT01_UPD_VS2VS-OBJNR, sy-vline,
  WA_ACT01_UPD_VS2VS-BEDID, sy-vline,
  WA_ACT01_UPD_VS2VS-BEDZL, sy-vline,
  WA_ACT01_UPD_VS2VS-BANFN, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ACT01_UPD_VS2VS 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_ACT01_UPD_VS2VS 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_ACT01_UPD_VS2VS INTO WA_ACT01_UPD_VS2VS.


*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 APLFL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ACT01_UPD_VS2VS-APLFL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ACT01_UPD_VS2VS-APLFL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BANFN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ACT01_UPD_VS2VS-BANFN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ACT01_UPD_VS2VS-BANFN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ACT01_UPD_VS2VS-EBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ACT01_UPD_VS2VS-EBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AUFNRD
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ACT01_UPD_VS2VS-AUFNRD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ACT01_UPD_VS2VS-AUFNRD.
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_ACT01_UPD_VS2VS_STR, 
MANDT TYPE STRING,
AUFPL TYPE STRING,
APLZL TYPE STRING,
SUMNR TYPE STRING,
APLFL TYPE STRING,
RUECK TYPE STRING,
RMZHL TYPE STRING,
OBJNR TYPE STRING,
BEDID TYPE STRING,
BEDZL TYPE STRING,
BANFN TYPE STRING,
BNFPO TYPE STRING,
EBELN TYPE STRING,
EBELP TYPE STRING,
FPLNR TYPE STRING,
AUFNRD TYPE STRING,
CLASF TYPE STRING,
ORGAUFPL TYPE STRING,
ORGAPLZL TYPE STRING,
INACT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ACT01_UPD_VS2VS_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_ACT01_UPD_VS2VS_STR-MANDT sy-vline 
WA_ACT01_UPD_VS2VS_STR-AUFPL sy-vline 
WA_ACT01_UPD_VS2VS_STR-APLZL sy-vline 
WA_ACT01_UPD_VS2VS_STR-SUMNR sy-vline 
WA_ACT01_UPD_VS2VS_STR-APLFL sy-vline 
WA_ACT01_UPD_VS2VS_STR-RUECK sy-vline 
WA_ACT01_UPD_VS2VS_STR-RMZHL sy-vline 
WA_ACT01_UPD_VS2VS_STR-OBJNR sy-vline 
WA_ACT01_UPD_VS2VS_STR-BEDID sy-vline 
WA_ACT01_UPD_VS2VS_STR-BEDZL sy-vline 
WA_ACT01_UPD_VS2VS_STR-BANFN sy-vline 
WA_ACT01_UPD_VS2VS_STR-BNFPO sy-vline 
WA_ACT01_UPD_VS2VS_STR-EBELN sy-vline 
WA_ACT01_UPD_VS2VS_STR-EBELP sy-vline 
WA_ACT01_UPD_VS2VS_STR-FPLNR sy-vline 
WA_ACT01_UPD_VS2VS_STR-AUFNRD sy-vline 
WA_ACT01_UPD_VS2VS_STR-CLASF sy-vline 
WA_ACT01_UPD_VS2VS_STR-ORGAUFPL sy-vline 
WA_ACT01_UPD_VS2VS_STR-ORGAPLZL sy-vline 
WA_ACT01_UPD_VS2VS_STR-INACT sy-vline      INTO ld_text SEPARATED BY SPACE.

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