ABAP Select data from SAP table RPCAUDK0_ALV5 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RPCAUDK0_ALV5 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 RPCAUDK0_ALV5. 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 RPCAUDK0_ALV5 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_RPCAUDK0_ALV5 TYPE STANDARD TABLE OF RPCAUDK0_ALV5,
      WA_RPCAUDK0_ALV5 TYPE RPCAUDK0_ALV5,
      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: <RPCAUDK0_ALV5> TYPE RPCAUDK0_ALV5.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RPCAUDK0_ALV5.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RPCAUDK0_ALV5
  INTO TABLE IT_RPCAUDK0_ALV5.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RPCAUDK0_ALV5
*  INTO TABLE @DATA(IT_RPCAUDK0_ALV52).
*--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_RPCAUDK0_ALV5 INDEX 1 INTO DATA(WA_RPCAUDK0_ALV52).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RPCAUDK0_ALV5 ASSIGNING <RPCAUDK0_ALV5>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RPCAUDK0_ALV5>-DESC1 = 1.
<RPCAUDK0_ALV5>-PERNR = 1.
<RPCAUDK0_ALV5>-SUMLG = 1.
<RPCAUDK0_ALV5>-SUMTX = 1.
<RPCAUDK0_ALV5>-LGART = 1.

ENDLOOP.

LOOP AT IT_RPCAUDK0_ALV5 INTO WA_RPCAUDK0_ALV5.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RPCAUDK0_ALV5-INPER, sy-vline,
  WA_RPCAUDK0_ALV5-IPYDT, sy-vline,
  WA_RPCAUDK0_ALV5-FPPER, sy-vline,
  WA_RPCAUDK0_ALV5-FPYDT, sy-vline,
  WA_RPCAUDK0_ALV5-ABKRS, sy-vline,
  WA_RPCAUDK0_ALV5-PAYTY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RPCAUDK0_ALV5 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_RPCAUDK0_ALV5 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_RPCAUDK0_ALV5 INTO WA_RPCAUDK0_ALV5.


*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 KOSTL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RPCAUDK0_ALV5-KOSTL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RPCAUDK0_ALV5-KOSTL.
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_RPCAUDK0_ALV5_STR, 
DESC1 TYPE STRING,
PERNR TYPE STRING,
SUMLG TYPE STRING,
SUMTX TYPE STRING,
LGART TYPE STRING,
INPER TYPE STRING,
IPYDT TYPE STRING,
FPPER TYPE STRING,
FPYDT TYPE STRING,
ABKRS TYPE STRING,
PAYTY TYPE STRING,
PAYID TYPE STRING,
BETRG1 TYPE STRING,
BETRG2 TYPE STRING,
BETRG3 TYPE STRING,
DESC4 TYPE STRING,
KOSTL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RPCAUDK0_ALV5_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_RPCAUDK0_ALV5_STR-DESC1 sy-vline 
WA_RPCAUDK0_ALV5_STR-PERNR sy-vline 
WA_RPCAUDK0_ALV5_STR-SUMLG sy-vline 
WA_RPCAUDK0_ALV5_STR-SUMTX sy-vline 
WA_RPCAUDK0_ALV5_STR-LGART sy-vline 
WA_RPCAUDK0_ALV5_STR-INPER sy-vline 
WA_RPCAUDK0_ALV5_STR-IPYDT sy-vline 
WA_RPCAUDK0_ALV5_STR-FPPER sy-vline 
WA_RPCAUDK0_ALV5_STR-FPYDT sy-vline 
WA_RPCAUDK0_ALV5_STR-ABKRS sy-vline 
WA_RPCAUDK0_ALV5_STR-PAYTY sy-vline 
WA_RPCAUDK0_ALV5_STR-PAYID sy-vline 
WA_RPCAUDK0_ALV5_STR-BETRG1 sy-vline 
WA_RPCAUDK0_ALV5_STR-BETRG2 sy-vline 
WA_RPCAUDK0_ALV5_STR-BETRG3 sy-vline 
WA_RPCAUDK0_ALV5_STR-DESC4 sy-vline 
WA_RPCAUDK0_ALV5_STR-KOSTL sy-vline      INTO ld_text SEPARATED BY SPACE.

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