ABAP Select data from SAP table UBC_VW_ACT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM UBC_VW_ACT
*  INTO TABLE @DATA(IT_UBC_VW_ACT2).
*--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_UBC_VW_ACT INDEX 1 INTO DATA(WA_UBC_VW_ACT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<UBC_VW_ACT>-MANDT = 1.
<UBC_VW_ACT>-ORG = 1.
<UBC_VW_ACT>-CNT = 1.
<UBC_VW_ACT>-ACT = 1.
<UBC_VW_ACT>-XNOBLI = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_UBC_VW_ACT-XONDIS, sy-vline,
  WA_UBC_VW_ACT-XNODIS, sy-vline,
  WA_UBC_VW_ACT-XOBLI, sy-vline,
  WA_UBC_VW_ACT-XHEAD, sy-vline,
  WA_UBC_VW_ACT-DESORG, sy-vline,
ENDLOOP.
   
*Add any further fields from structure WA_UBC_VW_ACT 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_UBC_VW_ACT 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_UBC_VW_ACT INTO WA_UBC_VW_ACT.


*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.
ENDFORM. 

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

TYPES: BEGIN OF T_UBC_VW_ACT_STR, 
MANDT TYPE STRING,
ORG TYPE STRING,
CNT TYPE STRING,
ACT TYPE STRING,
XNOBLI TYPE STRING,
XONDIS TYPE STRING,
XNODIS TYPE STRING,
XOBLI TYPE STRING,
XHEAD TYPE STRING,
DESORG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_UBC_VW_ACT_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_UBC_VW_ACT_STR-MANDT sy-vline 
WA_UBC_VW_ACT_STR-ORG sy-vline 
WA_UBC_VW_ACT_STR-CNT sy-vline 
WA_UBC_VW_ACT_STR-ACT sy-vline 
WA_UBC_VW_ACT_STR-XNOBLI sy-vline 
WA_UBC_VW_ACT_STR-XONDIS sy-vline 
WA_UBC_VW_ACT_STR-XNODIS sy-vline 
WA_UBC_VW_ACT_STR-XOBLI sy-vline 
WA_UBC_VW_ACT_STR-XHEAD sy-vline 
WA_UBC_VW_ACT_STR-DESORG sy-vline      INTO ld_text SEPARATED BY SPACE.

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