ABAP Select data from SAP table HCMFAB_S_PERS_UI0021_01 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_01 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_01. 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_01 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_01 TYPE STANDARD TABLE OF HCMFAB_S_PERS_UI0021_01,
      WA_HCMFAB_S_PERS_UI0021_01 TYPE HCMFAB_S_PERS_UI0021_01,
      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_01> TYPE HCMFAB_S_PERS_UI0021_01.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_HCMFAB_S_PERS_UI0021_01.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM HCMFAB_S_PERS_UI0021_01
  INTO TABLE IT_HCMFAB_S_PERS_UI0021_01.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HCMFAB_S_PERS_UI0021_01
*  INTO TABLE @DATA(IT_HCMFAB_S_PERS_UI0021_012).
*--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_01 INDEX 1 INTO DATA(WA_HCMFAB_S_PERS_UI0021_012).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_HCMFAB_S_PERS_UI0021_01 ASSIGNING <HCMFAB_S_PERS_UI0021_01>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<HCMFAB_S_PERS_UI0021_01>-OBJECT_KEY = 1.
<HCMFAB_S_PERS_UI0021_01>-PERNR = 1.
<HCMFAB_S_PERS_UI0021_01>-AEDTM = 1.
<HCMFAB_S_PERS_UI0021_01>-UNAME = 1.
<HCMFAB_S_PERS_UI0021_01>-SPRPS = 1.

ENDLOOP.

LOOP AT IT_HCMFAB_S_PERS_UI0021_01 INTO WA_HCMFAB_S_PERS_UI0021_01.
*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_01-SPRTX, sy-vline,
  WA_HCMFAB_S_PERS_UI0021_01-ITBLD, sy-vline,
  WA_HCMFAB_S_PERS_UI0021_01-ITXEX, sy-vline,
  WA_HCMFAB_S_PERS_UI0021_01-BEGDA, sy-vline,
  WA_HCMFAB_S_PERS_UI0021_01-ENDDA, sy-vline,
  WA_HCMFAB_S_PERS_UI0021_01-FAMSA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_HCMFAB_S_PERS_UI0021_01 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_01 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_01 INTO WA_HCMFAB_S_PERS_UI0021_01.


*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.
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_01_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,
STEXT TYPE STRING,
OBJTX TYPE STRING,
OBJPS TYPE STRING,
OBJPS1 TYPE STRING,
OBJPS2 TYPE STRING,
FANAM TYPE STRING,
FGBNA TYPE STRING,
FAVOR TYPE STRING,
TITEL TYPE STRING,
TITTX TYPE STRING,
FVRSW TYPE STRING,
FVRST TYPE STRING,
FGBDT TYPE STRING,
FNMZU TYPE STRING,
FNMZT TYPE STRING,
FGBOT TYPE STRING,
FANAT TYPE STRING,
NATTX TYPE STRING,
FGBLD TYPE STRING,
LNDTX TYPE STRING,
FANA2 TYPE STRING,
NA2TX TYPE STRING,
FANA3 TYPE STRING,
NA3TX TYPE STRING,
EGAGA TYPE STRING,
ANTXT TYPE STRING,
ERBNR TYPE STRING,
KDSVH TYPE STRING,
KDSTX TYPE STRING,
KDUTB TYPE STRING,
KDUTX TYPE STRING,
KDBSL TYPE STRING,
KDBTX TYPE STRING,
KDGBR TYPE STRING,
KDGTX TYPE STRING,
FASEX TYPE STRING,
FASTX TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HCMFAB_S_PERS_UI0021_01_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_01_STR-OBJECT_KEY sy-vline 
WA_HCMFAB_S_PERS_UI0021_01_STR-PERNR sy-vline 
WA_HCMFAB_S_PERS_UI0021_01_STR-AEDTM sy-vline 
WA_HCMFAB_S_PERS_UI0021_01_STR-UNAME sy-vline 
WA_HCMFAB_S_PERS_UI0021_01_STR-SPRPS sy-vline 
WA_HCMFAB_S_PERS_UI0021_01_STR-SPRTX sy-vline 
WA_HCMFAB_S_PERS_UI0021_01_STR-ITBLD sy-vline 
WA_HCMFAB_S_PERS_UI0021_01_STR-ITXEX sy-vline 
WA_HCMFAB_S_PERS_UI0021_01_STR-BEGDA sy-vline 
WA_HCMFAB_S_PERS_UI0021_01_STR-ENDDA sy-vline 
WA_HCMFAB_S_PERS_UI0021_01_STR-FAMSA sy-vline 
WA_HCMFAB_S_PERS_UI0021_01_STR-STEXT sy-vline 
WA_HCMFAB_S_PERS_UI0021_01_STR-OBJTX sy-vline 
WA_HCMFAB_S_PERS_UI0021_01_STR-OBJPS sy-vline 
WA_HCMFAB_S_PERS_UI0021_01_STR-OBJPS1 sy-vline 
WA_HCMFAB_S_PERS_UI0021_01_STR-OBJPS2 sy-vline 
WA_HCMFAB_S_PERS_UI0021_01_STR-FANAM sy-vline 
WA_HCMFAB_S_PERS_UI0021_01_STR-FGBNA sy-vline 
WA_HCMFAB_S_PERS_UI0021_01_STR-FAVOR sy-vline 
WA_HCMFAB_S_PERS_UI0021_01_STR-TITEL sy-vline 
WA_HCMFAB_S_PERS_UI0021_01_STR-TITTX sy-vline 
WA_HCMFAB_S_PERS_UI0021_01_STR-FVRSW sy-vline 
WA_HCMFAB_S_PERS_UI0021_01_STR-FVRST sy-vline 
WA_HCMFAB_S_PERS_UI0021_01_STR-FGBDT sy-vline 
WA_HCMFAB_S_PERS_UI0021_01_STR-FNMZU sy-vline 
WA_HCMFAB_S_PERS_UI0021_01_STR-FNMZT sy-vline 
WA_HCMFAB_S_PERS_UI0021_01_STR-FGBOT sy-vline 
WA_HCMFAB_S_PERS_UI0021_01_STR-FANAT sy-vline 
WA_HCMFAB_S_PERS_UI0021_01_STR-NATTX sy-vline 
WA_HCMFAB_S_PERS_UI0021_01_STR-FGBLD sy-vline 
WA_HCMFAB_S_PERS_UI0021_01_STR-LNDTX sy-vline 
WA_HCMFAB_S_PERS_UI0021_01_STR-FANA2 sy-vline 
WA_HCMFAB_S_PERS_UI0021_01_STR-NA2TX sy-vline 
WA_HCMFAB_S_PERS_UI0021_01_STR-FANA3 sy-vline 
WA_HCMFAB_S_PERS_UI0021_01_STR-NA3TX sy-vline 
WA_HCMFAB_S_PERS_UI0021_01_STR-EGAGA sy-vline 
WA_HCMFAB_S_PERS_UI0021_01_STR-ANTXT sy-vline 
WA_HCMFAB_S_PERS_UI0021_01_STR-ERBNR sy-vline 
WA_HCMFAB_S_PERS_UI0021_01_STR-KDSVH sy-vline 
WA_HCMFAB_S_PERS_UI0021_01_STR-KDSTX sy-vline 
WA_HCMFAB_S_PERS_UI0021_01_STR-KDUTB sy-vline 
WA_HCMFAB_S_PERS_UI0021_01_STR-KDUTX sy-vline 
WA_HCMFAB_S_PERS_UI0021_01_STR-KDBSL sy-vline 
WA_HCMFAB_S_PERS_UI0021_01_STR-KDBTX sy-vline 
WA_HCMFAB_S_PERS_UI0021_01_STR-KDGBR sy-vline 
WA_HCMFAB_S_PERS_UI0021_01_STR-KDGTX sy-vline 
WA_HCMFAB_S_PERS_UI0021_01_STR-FASEX sy-vline 
WA_HCMFAB_S_PERS_UI0021_01_STR-FASTX sy-vline      INTO ld_text SEPARATED BY SPACE.

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