ABAP Select data from SAP table HCMFAB_S_PERS_UI0021_34 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_34 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_34. 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_34 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_34 TYPE STANDARD TABLE OF HCMFAB_S_PERS_UI0021_34,
      WA_HCMFAB_S_PERS_UI0021_34 TYPE HCMFAB_S_PERS_UI0021_34,
      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_34> TYPE HCMFAB_S_PERS_UI0021_34.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_HCMFAB_S_PERS_UI0021_34.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM HCMFAB_S_PERS_UI0021_34
  INTO TABLE IT_HCMFAB_S_PERS_UI0021_34.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HCMFAB_S_PERS_UI0021_34
*  INTO TABLE @DATA(IT_HCMFAB_S_PERS_UI0021_342).
*--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_34 INDEX 1 INTO DATA(WA_HCMFAB_S_PERS_UI0021_342).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_HCMFAB_S_PERS_UI0021_34 ASSIGNING <HCMFAB_S_PERS_UI0021_34>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<HCMFAB_S_PERS_UI0021_34>-OBJECT_KEY = 1.
<HCMFAB_S_PERS_UI0021_34>-PERNR = 1.
<HCMFAB_S_PERS_UI0021_34>-AEDTM = 1.
<HCMFAB_S_PERS_UI0021_34>-UNAME = 1.
<HCMFAB_S_PERS_UI0021_34>-SPRPS = 1.

ENDLOOP.

LOOP AT IT_HCMFAB_S_PERS_UI0021_34 INTO WA_HCMFAB_S_PERS_UI0021_34.
*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_34-SPRTX, sy-vline,
  WA_HCMFAB_S_PERS_UI0021_34-ITBLD, sy-vline,
  WA_HCMFAB_S_PERS_UI0021_34-ITXEX, sy-vline,
  WA_HCMFAB_S_PERS_UI0021_34-BEGDA, sy-vline,
  WA_HCMFAB_S_PERS_UI0021_34-ENDDA, sy-vline,
  WA_HCMFAB_S_PERS_UI0021_34-INFTX, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_HCMFAB_S_PERS_UI0021_34 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_34 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_34 INTO WA_HCMFAB_S_PERS_UI0021_34.


*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_34-FGBDT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_HCMFAB_S_PERS_UI0021_34-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_34_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,
INFTX TYPE STRING,
FAMSA TYPE STRING,
STEXT TYPE STRING,
OBJPS TYPE STRING,
FCNAM TYPE STRING,
TITEL TYPE STRING,
FNMZU TYPE STRING,
FKNZN TYPE STRING,
ENAME TYPE STRING,
FGBOT TYPE STRING,
FGBDT TYPE STRING,
FANAT TYPE STRING,
NATTX TYPE STRING,
FGBLD TYPE STRING,
LNDTX TYPE STRING,
IDTYP TYPE STRING,
IDDES TYPE STRING,
MARCT TYPE STRING,
JOBTL TYPE STRING,
DEPTX TYPE STRING,
SPEMS TYPE STRING,
KDZUG TYPE STRING,
KNDTX TYPE STRING,
GESC2 TYPE STRING,
FAVOR TYPE STRING,
DEPDP TYPE STRING,
BPJSI TYPE STRING,
BECLS TYPE STRING,
IDNUM TYPE STRING,
IDCTY TYPE STRING,
IDDAT TYPE STRING,
IDEXP TYPE STRING,
IDPLA TYPE STRING,
TELNR TYPE STRING,
STRAS TYPE STRING,
LOCAT TYPE STRING,
ORT01 TYPE STRING,
PSTLZ TYPE STRING,
ORT02 TYPE STRING,
LAND1 TYPE STRING,
LAND101 TYPE STRING,
PASNR TYPE STRING,
PASTY TYPE STRING,
ISSUE TYPE STRING,
EXPIR TYPE STRING,
PLACE TYPE STRING,
CNTRY TYPE STRING,
CNTRY01 TYPE STRING,
SETXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HCMFAB_S_PERS_UI0021_34_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_34_STR-OBJECT_KEY sy-vline 
WA_HCMFAB_S_PERS_UI0021_34_STR-PERNR sy-vline 
WA_HCMFAB_S_PERS_UI0021_34_STR-AEDTM sy-vline 
WA_HCMFAB_S_PERS_UI0021_34_STR-UNAME sy-vline 
WA_HCMFAB_S_PERS_UI0021_34_STR-SPRPS sy-vline 
WA_HCMFAB_S_PERS_UI0021_34_STR-SPRTX sy-vline 
WA_HCMFAB_S_PERS_UI0021_34_STR-ITBLD sy-vline 
WA_HCMFAB_S_PERS_UI0021_34_STR-ITXEX sy-vline 
WA_HCMFAB_S_PERS_UI0021_34_STR-BEGDA sy-vline 
WA_HCMFAB_S_PERS_UI0021_34_STR-ENDDA sy-vline 
WA_HCMFAB_S_PERS_UI0021_34_STR-INFTX sy-vline 
WA_HCMFAB_S_PERS_UI0021_34_STR-FAMSA sy-vline 
WA_HCMFAB_S_PERS_UI0021_34_STR-STEXT sy-vline 
WA_HCMFAB_S_PERS_UI0021_34_STR-OBJPS sy-vline 
WA_HCMFAB_S_PERS_UI0021_34_STR-FCNAM sy-vline 
WA_HCMFAB_S_PERS_UI0021_34_STR-TITEL sy-vline 
WA_HCMFAB_S_PERS_UI0021_34_STR-FNMZU sy-vline 
WA_HCMFAB_S_PERS_UI0021_34_STR-FKNZN sy-vline 
WA_HCMFAB_S_PERS_UI0021_34_STR-ENAME sy-vline 
WA_HCMFAB_S_PERS_UI0021_34_STR-FGBOT sy-vline 
WA_HCMFAB_S_PERS_UI0021_34_STR-FGBDT sy-vline 
WA_HCMFAB_S_PERS_UI0021_34_STR-FANAT sy-vline 
WA_HCMFAB_S_PERS_UI0021_34_STR-NATTX sy-vline 
WA_HCMFAB_S_PERS_UI0021_34_STR-FGBLD sy-vline 
WA_HCMFAB_S_PERS_UI0021_34_STR-LNDTX sy-vline 
WA_HCMFAB_S_PERS_UI0021_34_STR-IDTYP sy-vline 
WA_HCMFAB_S_PERS_UI0021_34_STR-IDDES sy-vline 
WA_HCMFAB_S_PERS_UI0021_34_STR-MARCT sy-vline 
WA_HCMFAB_S_PERS_UI0021_34_STR-JOBTL sy-vline 
WA_HCMFAB_S_PERS_UI0021_34_STR-DEPTX sy-vline 
WA_HCMFAB_S_PERS_UI0021_34_STR-SPEMS sy-vline 
WA_HCMFAB_S_PERS_UI0021_34_STR-KDZUG sy-vline 
WA_HCMFAB_S_PERS_UI0021_34_STR-KNDTX sy-vline 
WA_HCMFAB_S_PERS_UI0021_34_STR-GESC2 sy-vline 
WA_HCMFAB_S_PERS_UI0021_34_STR-FAVOR sy-vline 
WA_HCMFAB_S_PERS_UI0021_34_STR-DEPDP sy-vline 
WA_HCMFAB_S_PERS_UI0021_34_STR-BPJSI sy-vline 
WA_HCMFAB_S_PERS_UI0021_34_STR-BECLS sy-vline 
WA_HCMFAB_S_PERS_UI0021_34_STR-IDNUM sy-vline 
WA_HCMFAB_S_PERS_UI0021_34_STR-IDCTY sy-vline 
WA_HCMFAB_S_PERS_UI0021_34_STR-IDDAT sy-vline 
WA_HCMFAB_S_PERS_UI0021_34_STR-IDEXP sy-vline 
WA_HCMFAB_S_PERS_UI0021_34_STR-IDPLA sy-vline 
WA_HCMFAB_S_PERS_UI0021_34_STR-TELNR sy-vline 
WA_HCMFAB_S_PERS_UI0021_34_STR-STRAS sy-vline 
WA_HCMFAB_S_PERS_UI0021_34_STR-LOCAT sy-vline 
WA_HCMFAB_S_PERS_UI0021_34_STR-ORT01 sy-vline 
WA_HCMFAB_S_PERS_UI0021_34_STR-PSTLZ sy-vline 
WA_HCMFAB_S_PERS_UI0021_34_STR-ORT02 sy-vline 
WA_HCMFAB_S_PERS_UI0021_34_STR-LAND1 sy-vline 
WA_HCMFAB_S_PERS_UI0021_34_STR-LAND101 sy-vline 
WA_HCMFAB_S_PERS_UI0021_34_STR-PASNR sy-vline 
WA_HCMFAB_S_PERS_UI0021_34_STR-PASTY sy-vline 
WA_HCMFAB_S_PERS_UI0021_34_STR-ISSUE sy-vline 
WA_HCMFAB_S_PERS_UI0021_34_STR-EXPIR sy-vline 
WA_HCMFAB_S_PERS_UI0021_34_STR-PLACE sy-vline 
WA_HCMFAB_S_PERS_UI0021_34_STR-CNTRY sy-vline 
WA_HCMFAB_S_PERS_UI0021_34_STR-CNTRY01 sy-vline 
WA_HCMFAB_S_PERS_UI0021_34_STR-SETXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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