ABAP Select data from SAP table HCMFAB_S_PERS_UI0021_41 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_UI0021_41 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_UI0021_41. 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_UI0021_41 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_UI0021_41 TYPE STANDARD TABLE OF HCMFAB_S_PERS_UI0021_41,
      WA_HCMFAB_S_PERS_UI0021_41 TYPE HCMFAB_S_PERS_UI0021_41,
      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_UI0021_41> TYPE HCMFAB_S_PERS_UI0021_41.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_HCMFAB_S_PERS_UI0021_41.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM HCMFAB_S_PERS_UI0021_41
  INTO TABLE IT_HCMFAB_S_PERS_UI0021_41.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HCMFAB_S_PERS_UI0021_41
*  INTO TABLE @DATA(IT_HCMFAB_S_PERS_UI0021_412).
*--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_UI0021_41 INDEX 1 INTO DATA(WA_HCMFAB_S_PERS_UI0021_412).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_HCMFAB_S_PERS_UI0021_41 ASSIGNING <HCMFAB_S_PERS_UI0021_41>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<HCMFAB_S_PERS_UI0021_41>-OBJECT_KEY = 1.
<HCMFAB_S_PERS_UI0021_41>-PERNR = 1.
<HCMFAB_S_PERS_UI0021_41>-AEDTM = 1.
<HCMFAB_S_PERS_UI0021_41>-UNAME = 1.
<HCMFAB_S_PERS_UI0021_41>-SPRPS = 1.

ENDLOOP.

LOOP AT IT_HCMFAB_S_PERS_UI0021_41 INTO WA_HCMFAB_S_PERS_UI0021_41.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_HCMFAB_S_PERS_UI0021_41-SPRTX, sy-vline,
  WA_HCMFAB_S_PERS_UI0021_41-ITBLD, sy-vline,
  WA_HCMFAB_S_PERS_UI0021_41-ITXEX, sy-vline,
  WA_HCMFAB_S_PERS_UI0021_41-BEGDA, sy-vline,
  WA_HCMFAB_S_PERS_UI0021_41-ENDDA, sy-vline,
  WA_HCMFAB_S_PERS_UI0021_41-FAMSA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_HCMFAB_S_PERS_UI0021_41 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_UI0021_41 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_UI0021_41 INTO WA_HCMFAB_S_PERS_UI0021_41.


*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 PDATE, internal->external for field FGBDT
CALL FUNCTION 'CONVERSION_EXIT_PDATE_OUTPUT'
  EXPORTING
    input =                      WA_HCMFAB_S_PERS_UI0021_41-FGBDT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_HCMFAB_S_PERS_UI0021_41-FGBDT.
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_UI0021_41_STR, 
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,
FAMSA TYPE STRING,
STEXT01 TYPE STRING,
KDSVH TYPE STRING,
ATEXT TYPE STRING,
FGBDT TYPE STRING,
FGBOT TYPE STRING,
FASAR TYPE STRING,
STEXT02 TYPE STRING,
FGBLD TYPE STRING,
LNDTX TYPE STRING,
FASIN TYPE STRING,
FANAT TYPE STRING,
LANDX TYPE STRING,
FASEX TYPE STRING,
FAVOR TYPE STRING,
FANAM TYPE STRING,
TITEL TYPE STRING,
FCNAM TYPE STRING,
FKNZN TYPE STRING,
DPTID TYPE STRING,
LIVID TYPE STRING,
HNDID TYPE STRING,
HELID TYPE STRING,
CHDID TYPE STRING,
FAMID TYPE STRING,
BALID TYPE STRING,
DPTYP TYPE STRING,
ADCID TYPE STRING,
ADPDT TYPE STRING,
OAPID TYPE STRING,
FSTID TYPE STRING,
DPTP2 TYPE STRING,
HNDCD TYPE STRING,
HNBEG TYPE STRING,
HNEND TYPE STRING,
PPTID TYPE STRING,
LNMHG TYPE STRING,
FNMHG TYPE STRING,
REGNO TYPE STRING,
FAJOB TYPE STRING,
FASTX TYPE STRING,
KDBSL TYPE STRING,
BTEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HCMFAB_S_PERS_UI0021_41_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_UI0021_41_STR-OBJECT_KEY sy-vline 
WA_HCMFAB_S_PERS_UI0021_41_STR-PERNR sy-vline 
WA_HCMFAB_S_PERS_UI0021_41_STR-AEDTM sy-vline 
WA_HCMFAB_S_PERS_UI0021_41_STR-UNAME sy-vline 
WA_HCMFAB_S_PERS_UI0021_41_STR-SPRPS sy-vline 
WA_HCMFAB_S_PERS_UI0021_41_STR-SPRTX sy-vline 
WA_HCMFAB_S_PERS_UI0021_41_STR-ITBLD sy-vline 
WA_HCMFAB_S_PERS_UI0021_41_STR-ITXEX sy-vline 
WA_HCMFAB_S_PERS_UI0021_41_STR-BEGDA sy-vline 
WA_HCMFAB_S_PERS_UI0021_41_STR-ENDDA sy-vline 
WA_HCMFAB_S_PERS_UI0021_41_STR-FAMSA sy-vline 
WA_HCMFAB_S_PERS_UI0021_41_STR-STEXT01 sy-vline 
WA_HCMFAB_S_PERS_UI0021_41_STR-KDSVH sy-vline 
WA_HCMFAB_S_PERS_UI0021_41_STR-ATEXT sy-vline 
WA_HCMFAB_S_PERS_UI0021_41_STR-FGBDT sy-vline 
WA_HCMFAB_S_PERS_UI0021_41_STR-FGBOT sy-vline 
WA_HCMFAB_S_PERS_UI0021_41_STR-FASAR sy-vline 
WA_HCMFAB_S_PERS_UI0021_41_STR-STEXT02 sy-vline 
WA_HCMFAB_S_PERS_UI0021_41_STR-FGBLD sy-vline 
WA_HCMFAB_S_PERS_UI0021_41_STR-LNDTX sy-vline 
WA_HCMFAB_S_PERS_UI0021_41_STR-FASIN sy-vline 
WA_HCMFAB_S_PERS_UI0021_41_STR-FANAT sy-vline 
WA_HCMFAB_S_PERS_UI0021_41_STR-LANDX sy-vline 
WA_HCMFAB_S_PERS_UI0021_41_STR-FASEX sy-vline 
WA_HCMFAB_S_PERS_UI0021_41_STR-FAVOR sy-vline 
WA_HCMFAB_S_PERS_UI0021_41_STR-FANAM sy-vline 
WA_HCMFAB_S_PERS_UI0021_41_STR-TITEL sy-vline 
WA_HCMFAB_S_PERS_UI0021_41_STR-FCNAM sy-vline 
WA_HCMFAB_S_PERS_UI0021_41_STR-FKNZN sy-vline 
WA_HCMFAB_S_PERS_UI0021_41_STR-DPTID sy-vline 
WA_HCMFAB_S_PERS_UI0021_41_STR-LIVID sy-vline 
WA_HCMFAB_S_PERS_UI0021_41_STR-HNDID sy-vline 
WA_HCMFAB_S_PERS_UI0021_41_STR-HELID sy-vline 
WA_HCMFAB_S_PERS_UI0021_41_STR-CHDID sy-vline 
WA_HCMFAB_S_PERS_UI0021_41_STR-FAMID sy-vline 
WA_HCMFAB_S_PERS_UI0021_41_STR-BALID sy-vline 
WA_HCMFAB_S_PERS_UI0021_41_STR-DPTYP sy-vline 
WA_HCMFAB_S_PERS_UI0021_41_STR-ADCID sy-vline 
WA_HCMFAB_S_PERS_UI0021_41_STR-ADPDT sy-vline 
WA_HCMFAB_S_PERS_UI0021_41_STR-OAPID sy-vline 
WA_HCMFAB_S_PERS_UI0021_41_STR-FSTID sy-vline 
WA_HCMFAB_S_PERS_UI0021_41_STR-DPTP2 sy-vline 
WA_HCMFAB_S_PERS_UI0021_41_STR-HNDCD sy-vline 
WA_HCMFAB_S_PERS_UI0021_41_STR-HNBEG sy-vline 
WA_HCMFAB_S_PERS_UI0021_41_STR-HNEND sy-vline 
WA_HCMFAB_S_PERS_UI0021_41_STR-PPTID sy-vline 
WA_HCMFAB_S_PERS_UI0021_41_STR-LNMHG sy-vline 
WA_HCMFAB_S_PERS_UI0021_41_STR-FNMHG sy-vline 
WA_HCMFAB_S_PERS_UI0021_41_STR-REGNO sy-vline 
WA_HCMFAB_S_PERS_UI0021_41_STR-FAJOB sy-vline 
WA_HCMFAB_S_PERS_UI0021_41_STR-FASTX sy-vline 
WA_HCMFAB_S_PERS_UI0021_41_STR-KDBSL sy-vline 
WA_HCMFAB_S_PERS_UI0021_41_STR-BTEXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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