ABAP Select data from SAP table HCMFAB_S_PERS_UI0002_31 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_UI0002_31 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_UI0002_31. 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_UI0002_31 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_UI0002_31 TYPE STANDARD TABLE OF HCMFAB_S_PERS_UI0002_31,
      WA_HCMFAB_S_PERS_UI0002_31 TYPE HCMFAB_S_PERS_UI0002_31,
      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_UI0002_31> TYPE HCMFAB_S_PERS_UI0002_31.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_HCMFAB_S_PERS_UI0002_31.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM HCMFAB_S_PERS_UI0002_31
  INTO TABLE IT_HCMFAB_S_PERS_UI0002_31.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HCMFAB_S_PERS_UI0002_31
*  INTO TABLE @DATA(IT_HCMFAB_S_PERS_UI0002_312).
*--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_UI0002_31 INDEX 1 INTO DATA(WA_HCMFAB_S_PERS_UI0002_312).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_HCMFAB_S_PERS_UI0002_31 ASSIGNING <HCMFAB_S_PERS_UI0002_31>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<HCMFAB_S_PERS_UI0002_31>-OBJECT_KEY = 1.
<HCMFAB_S_PERS_UI0002_31>-PERNR = 1.
<HCMFAB_S_PERS_UI0002_31>-AEDTM = 1.
<HCMFAB_S_PERS_UI0002_31>-UNAME = 1.
<HCMFAB_S_PERS_UI0002_31>-SPRPS = 1.

ENDLOOP.

LOOP AT IT_HCMFAB_S_PERS_UI0002_31 INTO WA_HCMFAB_S_PERS_UI0002_31.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_HCMFAB_S_PERS_UI0002_31-SPRTX, sy-vline,
  WA_HCMFAB_S_PERS_UI0002_31-ITBLD, sy-vline,
  WA_HCMFAB_S_PERS_UI0002_31-ITXEX, sy-vline,
  WA_HCMFAB_S_PERS_UI0002_31-BEGDA, sy-vline,
  WA_HCMFAB_S_PERS_UI0002_31-ENDDA, sy-vline,
  WA_HCMFAB_S_PERS_UI0002_31-ANRED, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_HCMFAB_S_PERS_UI0002_31 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_UI0002_31 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_UI0002_31 INTO WA_HCMFAB_S_PERS_UI0002_31.


*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 GBDAT
CALL FUNCTION 'CONVERSION_EXIT_PDATE_OUTPUT'
  EXPORTING
    input =                      WA_HCMFAB_S_PERS_UI0002_31-GBDAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_HCMFAB_S_PERS_UI0002_31-GBDAT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field SPRSL
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_HCMFAB_S_PERS_UI0002_31-SPRSL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_HCMFAB_S_PERS_UI0002_31-SPRSL.
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_UI0002_31_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,
ANRED TYPE STRING,
ANREX TYPE STRING,
KNZNM TYPE STRING,
KNZNMTEXT TYPE STRING,
NACHN TYPE STRING,
NAME2 TYPE STRING,
VORNA TYPE STRING,
INITS TYPE STRING,
VORSW TYPE STRING,
VORS2 TYPE STRING,
TITEL TYPE STRING,
TITL2 TYPE STRING,
NAMZU TYPE STRING,
RUFNM TYPE STRING,
RUFNM_SK TYPE STRING,
PERID TYPE STRING,
GBDAT TYPE STRING,
GBORT TYPE STRING,
GBLND TYPE STRING,
LANDX TYPE STRING,
GBDEP TYPE STRING,
BEZEI TYPE STRING,
SPRSL TYPE STRING,
SPTXT TYPE STRING,
FNAMK TYPE STRING,
FNATX TYPE STRING,
NATIO TYPE STRING,
NATTX TYPE STRING,
NATI2 TYPE STRING,
NA2TX TYPE STRING,
NATI3 TYPE STRING,
NA3TX TYPE STRING,
FAMST TYPE STRING,
FATXT TYPE STRING,
FAMDT TYPE STRING,
ANZKD TYPE STRING,
KONFE TYPE STRING,
KITXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HCMFAB_S_PERS_UI0002_31_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_UI0002_31_STR-OBJECT_KEY sy-vline 
WA_HCMFAB_S_PERS_UI0002_31_STR-PERNR sy-vline 
WA_HCMFAB_S_PERS_UI0002_31_STR-AEDTM sy-vline 
WA_HCMFAB_S_PERS_UI0002_31_STR-UNAME sy-vline 
WA_HCMFAB_S_PERS_UI0002_31_STR-SPRPS sy-vline 
WA_HCMFAB_S_PERS_UI0002_31_STR-SPRTX sy-vline 
WA_HCMFAB_S_PERS_UI0002_31_STR-ITBLD sy-vline 
WA_HCMFAB_S_PERS_UI0002_31_STR-ITXEX sy-vline 
WA_HCMFAB_S_PERS_UI0002_31_STR-BEGDA sy-vline 
WA_HCMFAB_S_PERS_UI0002_31_STR-ENDDA sy-vline 
WA_HCMFAB_S_PERS_UI0002_31_STR-ANRED sy-vline 
WA_HCMFAB_S_PERS_UI0002_31_STR-ANREX sy-vline 
WA_HCMFAB_S_PERS_UI0002_31_STR-KNZNM sy-vline 
WA_HCMFAB_S_PERS_UI0002_31_STR-KNZNMTEXT sy-vline 
WA_HCMFAB_S_PERS_UI0002_31_STR-NACHN sy-vline 
WA_HCMFAB_S_PERS_UI0002_31_STR-NAME2 sy-vline 
WA_HCMFAB_S_PERS_UI0002_31_STR-VORNA sy-vline 
WA_HCMFAB_S_PERS_UI0002_31_STR-INITS sy-vline 
WA_HCMFAB_S_PERS_UI0002_31_STR-VORSW sy-vline 
WA_HCMFAB_S_PERS_UI0002_31_STR-VORS2 sy-vline 
WA_HCMFAB_S_PERS_UI0002_31_STR-TITEL sy-vline 
WA_HCMFAB_S_PERS_UI0002_31_STR-TITL2 sy-vline 
WA_HCMFAB_S_PERS_UI0002_31_STR-NAMZU sy-vline 
WA_HCMFAB_S_PERS_UI0002_31_STR-RUFNM sy-vline 
WA_HCMFAB_S_PERS_UI0002_31_STR-RUFNM_SK sy-vline 
WA_HCMFAB_S_PERS_UI0002_31_STR-PERID sy-vline 
WA_HCMFAB_S_PERS_UI0002_31_STR-GBDAT sy-vline 
WA_HCMFAB_S_PERS_UI0002_31_STR-GBORT sy-vline 
WA_HCMFAB_S_PERS_UI0002_31_STR-GBLND sy-vline 
WA_HCMFAB_S_PERS_UI0002_31_STR-LANDX sy-vline 
WA_HCMFAB_S_PERS_UI0002_31_STR-GBDEP sy-vline 
WA_HCMFAB_S_PERS_UI0002_31_STR-BEZEI sy-vline 
WA_HCMFAB_S_PERS_UI0002_31_STR-SPRSL sy-vline 
WA_HCMFAB_S_PERS_UI0002_31_STR-SPTXT sy-vline 
WA_HCMFAB_S_PERS_UI0002_31_STR-FNAMK sy-vline 
WA_HCMFAB_S_PERS_UI0002_31_STR-FNATX sy-vline 
WA_HCMFAB_S_PERS_UI0002_31_STR-NATIO sy-vline 
WA_HCMFAB_S_PERS_UI0002_31_STR-NATTX sy-vline 
WA_HCMFAB_S_PERS_UI0002_31_STR-NATI2 sy-vline 
WA_HCMFAB_S_PERS_UI0002_31_STR-NA2TX sy-vline 
WA_HCMFAB_S_PERS_UI0002_31_STR-NATI3 sy-vline 
WA_HCMFAB_S_PERS_UI0002_31_STR-NA3TX sy-vline 
WA_HCMFAB_S_PERS_UI0002_31_STR-FAMST sy-vline 
WA_HCMFAB_S_PERS_UI0002_31_STR-FATXT sy-vline 
WA_HCMFAB_S_PERS_UI0002_31_STR-FAMDT sy-vline 
WA_HCMFAB_S_PERS_UI0002_31_STR-ANZKD sy-vline 
WA_HCMFAB_S_PERS_UI0002_31_STR-KONFE sy-vline 
WA_HCMFAB_S_PERS_UI0002_31_STR-KITXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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