ABAP Select data from SAP table FKKBIBILLACC_H into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FKKBIBILLACC_H
*  INTO TABLE @DATA(IT_FKKBIBILLACC_H2).
*--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_FKKBIBILLACC_H INDEX 1 INTO DATA(WA_FKKBIBILLACC_H2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FKKBIBILLACC_H>-MANDT = 1.
<FKKBIBILLACC_H>-BILLACCOUNT = 1.
<FKKBIBILLACC_H>-BILLACCREF = 1.
<FKKBIBILLACC_H>-BILLACCREFCAT = 1.
<FKKBIBILLACC_H>-APPLK = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FKKBIBILLACC_H-VKONT, sy-vline,
  WA_FKKBIBILLACC_H-GPART, sy-vline,
  WA_FKKBIBILLACC_H-VTREF, sy-vline,
  WA_FKKBIBILLACC_H-SUBAP, sy-vline,
  WA_FKKBIBILLACC_H-BILLACCTYPE, sy-vline,
  WA_FKKBIBILLACC_H-TS_FROM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FKKBIBILLACC_H 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_FKKBIBILLACC_H 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_FKKBIBILLACC_H INTO WA_FKKBIBILLACC_H.


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

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

*Conversion exit ALPHA, internal->external for field VTREF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKKBIBILLACC_H-VTREF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKKBIBILLACC_H-VTREF.
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_FKKBIBILLACC_H_STR, 
MANDT TYPE STRING,
BILLACCOUNT TYPE STRING,
BILLACCREF TYPE STRING,
BILLACCREFCAT TYPE STRING,
APPLK TYPE STRING,
VKONT TYPE STRING,
GPART TYPE STRING,
VTREF TYPE STRING,
SUBAP TYPE STRING,
BILLACCTYPE TYPE STRING,
TS_FROM TYPE STRING,
TS_TO TYPE STRING,
BILLACCTIMEZONE TYPE STRING,
LOADTO TYPE STRING,
BILLEDTO TYPE STRING,
BILLEDTOTEMP TYPE STRING,
BILLCYCLE TYPE STRING,
BILLGROUP TYPE STRING,
BC_VALIDTO TYPE STRING,
HOTBILLING TYPE STRING,
BILLLOCKREASON TYPE STRING,
BILLLOCKRELEASE TYPE STRING,
KOFIZ TYPE STRING,
BEGRU TYPE STRING,
TARGPROCESS1 TYPE STRING,
CRNAME TYPE STRING,
CRTIMESTAMP TYPE STRING,
CHNAME TYPE STRING,
CHTIMESTAMP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FKKBIBILLACC_H_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_FKKBIBILLACC_H_STR-MANDT sy-vline 
WA_FKKBIBILLACC_H_STR-BILLACCOUNT sy-vline 
WA_FKKBIBILLACC_H_STR-BILLACCREF sy-vline 
WA_FKKBIBILLACC_H_STR-BILLACCREFCAT sy-vline 
WA_FKKBIBILLACC_H_STR-APPLK sy-vline 
WA_FKKBIBILLACC_H_STR-VKONT sy-vline 
WA_FKKBIBILLACC_H_STR-GPART sy-vline 
WA_FKKBIBILLACC_H_STR-VTREF sy-vline 
WA_FKKBIBILLACC_H_STR-SUBAP sy-vline 
WA_FKKBIBILLACC_H_STR-BILLACCTYPE sy-vline 
WA_FKKBIBILLACC_H_STR-TS_FROM sy-vline 
WA_FKKBIBILLACC_H_STR-TS_TO sy-vline 
WA_FKKBIBILLACC_H_STR-BILLACCTIMEZONE sy-vline 
WA_FKKBIBILLACC_H_STR-LOADTO sy-vline 
WA_FKKBIBILLACC_H_STR-BILLEDTO sy-vline 
WA_FKKBIBILLACC_H_STR-BILLEDTOTEMP sy-vline 
WA_FKKBIBILLACC_H_STR-BILLCYCLE sy-vline 
WA_FKKBIBILLACC_H_STR-BILLGROUP sy-vline 
WA_FKKBIBILLACC_H_STR-BC_VALIDTO sy-vline 
WA_FKKBIBILLACC_H_STR-HOTBILLING sy-vline 
WA_FKKBIBILLACC_H_STR-BILLLOCKREASON sy-vline 
WA_FKKBIBILLACC_H_STR-BILLLOCKRELEASE sy-vline 
WA_FKKBIBILLACC_H_STR-KOFIZ sy-vline 
WA_FKKBIBILLACC_H_STR-BEGRU sy-vline 
WA_FKKBIBILLACC_H_STR-TARGPROCESS1 sy-vline 
WA_FKKBIBILLACC_H_STR-CRNAME sy-vline 
WA_FKKBIBILLACC_H_STR-CRTIMESTAMP sy-vline 
WA_FKKBIBILLACC_H_STR-CHNAME sy-vline 
WA_FKKBIBILLACC_H_STR-CHTIMESTAMP sy-vline      INTO ld_text SEPARATED BY SPACE.

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