ABAP Select data from SAP table HCMFAB_S_PERS_UI0021_19 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_19 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_19. 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_19 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_19 TYPE STANDARD TABLE OF HCMFAB_S_PERS_UI0021_19,
      WA_HCMFAB_S_PERS_UI0021_19 TYPE HCMFAB_S_PERS_UI0021_19,
      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_19> TYPE HCMFAB_S_PERS_UI0021_19.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_HCMFAB_S_PERS_UI0021_19.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM HCMFAB_S_PERS_UI0021_19
  INTO TABLE IT_HCMFAB_S_PERS_UI0021_19.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HCMFAB_S_PERS_UI0021_19
*  INTO TABLE @DATA(IT_HCMFAB_S_PERS_UI0021_192).
*--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_19 INDEX 1 INTO DATA(WA_HCMFAB_S_PERS_UI0021_192).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_HCMFAB_S_PERS_UI0021_19 ASSIGNING <HCMFAB_S_PERS_UI0021_19>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<HCMFAB_S_PERS_UI0021_19>-OBJECT_KEY = 1.
<HCMFAB_S_PERS_UI0021_19>-PERNR = 1.
<HCMFAB_S_PERS_UI0021_19>-AEDTM = 1.
<HCMFAB_S_PERS_UI0021_19>-UNAME = 1.
<HCMFAB_S_PERS_UI0021_19>-SPRPS = 1.

ENDLOOP.

LOOP AT IT_HCMFAB_S_PERS_UI0021_19 INTO WA_HCMFAB_S_PERS_UI0021_19.
*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_19-SPRTX, sy-vline,
  WA_HCMFAB_S_PERS_UI0021_19-ITBLD, sy-vline,
  WA_HCMFAB_S_PERS_UI0021_19-ITXEX, sy-vline,
  WA_HCMFAB_S_PERS_UI0021_19-BEGDA, sy-vline,
  WA_HCMFAB_S_PERS_UI0021_19-ENDDA, sy-vline,
  WA_HCMFAB_S_PERS_UI0021_19-FAMSA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_HCMFAB_S_PERS_UI0021_19 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_19 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_19 INTO WA_HCMFAB_S_PERS_UI0021_19.


*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_19-FGBDT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_HCMFAB_S_PERS_UI0021_19-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_19_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,
OBJPS TYPE STRING,
FCNAM TYPE STRING,
FAVOR TYPE STRING,
FANAM TYPE STRING,
TITEL TYPE STRING,
FGBDT TYPE STRING,
DADEA TYPE STRING,
FGBOT TYPE STRING,
FGBLD TYPE STRING,
LNDTX TYPE STRING,
FANAT TYPE STRING,
NATTX TYPE STRING,
FANA2 TYPE STRING,
NATT2 TYPE STRING,
FANA3 TYPE STRING,
NATT3 TYPE STRING,
FASAR TYPE STRING,
STEXT02 TYPE STRING,
FINUM TYPE STRING,
SSNUM TYPE STRING,
SSINS TYPE STRING,
SITXT TYPE STRING,
RELCO TYPE STRING,
GESC2 TYPE STRING,
BFA_ALWTP TYPE STRING,
BFA_GRADE TYPE STRING,
BFA_VALDT TYPE STRING,
BFA_PARES TYPE STRING,
BFA_FPAYM TYPE STRING,
BFA_CHI_ALW TYPE STRING,
BFA_STU_ALW TYPE STRING,
BFA_NONE_ALW TYPE STRING,
BENEF TYPE STRING,
VADSE TYPE STRING,
NSERS TYPE STRING,
PCDEF TYPE STRING,
FAMAL TYPE STRING,
DISBO TYPE STRING,
SPCER TYPE STRING,
LLMBN TYPE STRING,
SSA3P TYPE STRING,
SPBEN TYPE STRING,
CERDT TYPE STRING,
CERTA TYPE STRING,
PRCT1 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HCMFAB_S_PERS_UI0021_19_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_19_STR-OBJECT_KEY sy-vline 
WA_HCMFAB_S_PERS_UI0021_19_STR-PERNR sy-vline 
WA_HCMFAB_S_PERS_UI0021_19_STR-AEDTM sy-vline 
WA_HCMFAB_S_PERS_UI0021_19_STR-UNAME sy-vline 
WA_HCMFAB_S_PERS_UI0021_19_STR-SPRPS sy-vline 
WA_HCMFAB_S_PERS_UI0021_19_STR-SPRTX sy-vline 
WA_HCMFAB_S_PERS_UI0021_19_STR-ITBLD sy-vline 
WA_HCMFAB_S_PERS_UI0021_19_STR-ITXEX sy-vline 
WA_HCMFAB_S_PERS_UI0021_19_STR-BEGDA sy-vline 
WA_HCMFAB_S_PERS_UI0021_19_STR-ENDDA sy-vline 
WA_HCMFAB_S_PERS_UI0021_19_STR-FAMSA sy-vline 
WA_HCMFAB_S_PERS_UI0021_19_STR-STEXT01 sy-vline 
WA_HCMFAB_S_PERS_UI0021_19_STR-OBJPS sy-vline 
WA_HCMFAB_S_PERS_UI0021_19_STR-FCNAM sy-vline 
WA_HCMFAB_S_PERS_UI0021_19_STR-FAVOR sy-vline 
WA_HCMFAB_S_PERS_UI0021_19_STR-FANAM sy-vline 
WA_HCMFAB_S_PERS_UI0021_19_STR-TITEL sy-vline 
WA_HCMFAB_S_PERS_UI0021_19_STR-FGBDT sy-vline 
WA_HCMFAB_S_PERS_UI0021_19_STR-DADEA sy-vline 
WA_HCMFAB_S_PERS_UI0021_19_STR-FGBOT sy-vline 
WA_HCMFAB_S_PERS_UI0021_19_STR-FGBLD sy-vline 
WA_HCMFAB_S_PERS_UI0021_19_STR-LNDTX sy-vline 
WA_HCMFAB_S_PERS_UI0021_19_STR-FANAT sy-vline 
WA_HCMFAB_S_PERS_UI0021_19_STR-NATTX sy-vline 
WA_HCMFAB_S_PERS_UI0021_19_STR-FANA2 sy-vline 
WA_HCMFAB_S_PERS_UI0021_19_STR-NATT2 sy-vline 
WA_HCMFAB_S_PERS_UI0021_19_STR-FANA3 sy-vline 
WA_HCMFAB_S_PERS_UI0021_19_STR-NATT3 sy-vline 
WA_HCMFAB_S_PERS_UI0021_19_STR-FASAR sy-vline 
WA_HCMFAB_S_PERS_UI0021_19_STR-STEXT02 sy-vline 
WA_HCMFAB_S_PERS_UI0021_19_STR-FINUM sy-vline 
WA_HCMFAB_S_PERS_UI0021_19_STR-SSNUM sy-vline 
WA_HCMFAB_S_PERS_UI0021_19_STR-SSINS sy-vline 
WA_HCMFAB_S_PERS_UI0021_19_STR-SITXT sy-vline 
WA_HCMFAB_S_PERS_UI0021_19_STR-RELCO sy-vline 
WA_HCMFAB_S_PERS_UI0021_19_STR-GESC2 sy-vline 
WA_HCMFAB_S_PERS_UI0021_19_STR-BFA_ALWTP sy-vline 
WA_HCMFAB_S_PERS_UI0021_19_STR-BFA_GRADE sy-vline 
WA_HCMFAB_S_PERS_UI0021_19_STR-BFA_VALDT sy-vline 
WA_HCMFAB_S_PERS_UI0021_19_STR-BFA_PARES sy-vline 
WA_HCMFAB_S_PERS_UI0021_19_STR-BFA_FPAYM sy-vline 
WA_HCMFAB_S_PERS_UI0021_19_STR-BFA_CHI_ALW sy-vline 
WA_HCMFAB_S_PERS_UI0021_19_STR-BFA_STU_ALW sy-vline 
WA_HCMFAB_S_PERS_UI0021_19_STR-BFA_NONE_ALW sy-vline 
WA_HCMFAB_S_PERS_UI0021_19_STR-BENEF sy-vline 
WA_HCMFAB_S_PERS_UI0021_19_STR-VADSE sy-vline 
WA_HCMFAB_S_PERS_UI0021_19_STR-NSERS sy-vline 
WA_HCMFAB_S_PERS_UI0021_19_STR-PCDEF sy-vline 
WA_HCMFAB_S_PERS_UI0021_19_STR-FAMAL sy-vline 
WA_HCMFAB_S_PERS_UI0021_19_STR-DISBO sy-vline 
WA_HCMFAB_S_PERS_UI0021_19_STR-SPCER sy-vline 
WA_HCMFAB_S_PERS_UI0021_19_STR-LLMBN sy-vline 
WA_HCMFAB_S_PERS_UI0021_19_STR-SSA3P sy-vline 
WA_HCMFAB_S_PERS_UI0021_19_STR-SPBEN sy-vline 
WA_HCMFAB_S_PERS_UI0021_19_STR-CERDT sy-vline 
WA_HCMFAB_S_PERS_UI0021_19_STR-CERTA sy-vline 
WA_HCMFAB_S_PERS_UI0021_19_STR-PRCT1 sy-vline      INTO ld_text SEPARATED BY SPACE.

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