ABAP Select data from SAP table HCMFAB_S_PERS_INTERNALDATA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HCMFAB_S_PERS_INTERNALDATA
*  INTO TABLE @DATA(IT_HCMFAB_S_PERS_INTERNALDATA2).
*--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_HCMFAB_S_PERS_INTERNALDATA INDEX 1 INTO DATA(WA_HCMFAB_S_PERS_INTERNALDATA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<HCMFAB_S_PERS_INTERNALDATA>-HCMFAB_PERNR = 1.
<HCMFAB_S_PERS_INTERNALDATA>-HCMFAB_INFTY = 1.
<HCMFAB_S_PERS_INTERNALDATA>-HCMFAB_SUBTY = 1.
<HCMFAB_S_PERS_INTERNALDATA>-HCMFAB_OBJPS = 1.
<HCMFAB_S_PERS_INTERNALDATA>-HCMFAB_SPRPS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_HCMFAB_S_PERS_INTERNALDATA-HCMFAB_ENDDA, sy-vline,
  WA_HCMFAB_S_PERS_INTERNALDATA-HCMFAB_BEGDA, sy-vline,
  WA_HCMFAB_S_PERS_INTERNALDATA-HCMFAB_SEQNR, sy-vline,
  WA_HCMFAB_S_PERS_INTERNALDATA-OBJECT_KEY, sy-vline,
  WA_HCMFAB_S_PERS_INTERNALDATA-PERNR, sy-vline,
  WA_HCMFAB_S_PERS_INTERNALDATA-AEDTM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_HCMFAB_S_PERS_INTERNALDATA 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_HCMFAB_S_PERS_INTERNALDATA 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_HCMFAB_S_PERS_INTERNALDATA INTO WA_HCMFAB_S_PERS_INTERNALDATA.


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

*Conversion exit ALPHA, internal->external for field SUBNO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_HCMFAB_S_PERS_INTERNALDATA-SUBNO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_HCMFAB_S_PERS_INTERNALDATA-SUBNO.
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_HCMFAB_S_PERS_INTERNALDATA_STR, 
HCMFAB_PERNR TYPE STRING,
HCMFAB_INFTY TYPE STRING,
HCMFAB_SUBTY TYPE STRING,
HCMFAB_OBJPS TYPE STRING,
HCMFAB_SPRPS TYPE STRING,
HCMFAB_ENDDA TYPE STRING,
HCMFAB_BEGDA TYPE STRING,
HCMFAB_SEQNR TYPE STRING,
OBJECT_KEY TYPE STRING,
PERNR TYPE STRING,
AEDTM TYPE STRING,
UNAME TYPE STRING,
SPRPS TYPE STRING,
SPRTX TYPE STRING,
ITBLD TYPE STRING,
ITXEX TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
PNALT TYPE STRING,
WAUSW TYPE STRING,
PKWRG TYPE STRING,
MOLGA TYPE STRING,
PKWWR TYPE STRING,
WAERS TYPE STRING,
KFZKZ TYPE STRING,
BUKRS TYPE STRING,
ANLNR TYPE STRING,
MAINNO TYPE STRING,
SUBNO TYPE STRING,
TEXT TYPE STRING,
GEBNR TYPE STRING,
ZIMNR TYPE STRING,
TEL01 TYPE STRING,
TEL_DUMMY TYPE STRING,
TEL02 TYPE STRING,
IS_EDITABLE TYPE STRING,
IS_DELETABLE TYPE STRING,
PERS_INFO_ETAG TYPE STRING,
DISPLAY_SCREEN TYPE STRING,
EDIT_SCREEN TYPE STRING,
HCMFAB_INTERNALDAT_INCL_DUMMY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HCMFAB_S_PERS_INTERNALDATA_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_HCMFAB_S_PERS_INTERNALDATA_STR-HCMFAB_PERNR sy-vline 
WA_HCMFAB_S_PERS_INTERNALDATA_STR-HCMFAB_INFTY sy-vline 
WA_HCMFAB_S_PERS_INTERNALDATA_STR-HCMFAB_SUBTY sy-vline 
WA_HCMFAB_S_PERS_INTERNALDATA_STR-HCMFAB_OBJPS sy-vline 
WA_HCMFAB_S_PERS_INTERNALDATA_STR-HCMFAB_SPRPS sy-vline 
WA_HCMFAB_S_PERS_INTERNALDATA_STR-HCMFAB_ENDDA sy-vline 
WA_HCMFAB_S_PERS_INTERNALDATA_STR-HCMFAB_BEGDA sy-vline 
WA_HCMFAB_S_PERS_INTERNALDATA_STR-HCMFAB_SEQNR sy-vline 
WA_HCMFAB_S_PERS_INTERNALDATA_STR-OBJECT_KEY sy-vline 
WA_HCMFAB_S_PERS_INTERNALDATA_STR-PERNR sy-vline 
WA_HCMFAB_S_PERS_INTERNALDATA_STR-AEDTM sy-vline 
WA_HCMFAB_S_PERS_INTERNALDATA_STR-UNAME sy-vline 
WA_HCMFAB_S_PERS_INTERNALDATA_STR-SPRPS sy-vline 
WA_HCMFAB_S_PERS_INTERNALDATA_STR-SPRTX sy-vline 
WA_HCMFAB_S_PERS_INTERNALDATA_STR-ITBLD sy-vline 
WA_HCMFAB_S_PERS_INTERNALDATA_STR-ITXEX sy-vline 
WA_HCMFAB_S_PERS_INTERNALDATA_STR-BEGDA sy-vline 
WA_HCMFAB_S_PERS_INTERNALDATA_STR-ENDDA sy-vline 
WA_HCMFAB_S_PERS_INTERNALDATA_STR-PNALT sy-vline 
WA_HCMFAB_S_PERS_INTERNALDATA_STR-WAUSW sy-vline 
WA_HCMFAB_S_PERS_INTERNALDATA_STR-PKWRG sy-vline 
WA_HCMFAB_S_PERS_INTERNALDATA_STR-MOLGA sy-vline 
WA_HCMFAB_S_PERS_INTERNALDATA_STR-PKWWR sy-vline 
WA_HCMFAB_S_PERS_INTERNALDATA_STR-WAERS sy-vline 
WA_HCMFAB_S_PERS_INTERNALDATA_STR-KFZKZ sy-vline 
WA_HCMFAB_S_PERS_INTERNALDATA_STR-BUKRS sy-vline 
WA_HCMFAB_S_PERS_INTERNALDATA_STR-ANLNR sy-vline 
WA_HCMFAB_S_PERS_INTERNALDATA_STR-MAINNO sy-vline 
WA_HCMFAB_S_PERS_INTERNALDATA_STR-SUBNO sy-vline 
WA_HCMFAB_S_PERS_INTERNALDATA_STR-TEXT sy-vline 
WA_HCMFAB_S_PERS_INTERNALDATA_STR-GEBNR sy-vline 
WA_HCMFAB_S_PERS_INTERNALDATA_STR-ZIMNR sy-vline 
WA_HCMFAB_S_PERS_INTERNALDATA_STR-TEL01 sy-vline 
WA_HCMFAB_S_PERS_INTERNALDATA_STR-TEL_DUMMY sy-vline 
WA_HCMFAB_S_PERS_INTERNALDATA_STR-TEL02 sy-vline 
WA_HCMFAB_S_PERS_INTERNALDATA_STR-IS_EDITABLE sy-vline 
WA_HCMFAB_S_PERS_INTERNALDATA_STR-IS_DELETABLE sy-vline 
WA_HCMFAB_S_PERS_INTERNALDATA_STR-PERS_INFO_ETAG sy-vline 
WA_HCMFAB_S_PERS_INTERNALDATA_STR-DISPLAY_SCREEN sy-vline 
WA_HCMFAB_S_PERS_INTERNALDATA_STR-EDIT_SCREEN sy-vline 
WA_HCMFAB_S_PERS_INTERNALDATA_STR-HCMFAB_INTERNALDAT_INCL_DUMMY sy-vline      INTO ld_text SEPARATED BY SPACE.

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