ABAP Select data from SAP table HRNL_PR_UPA_WERKNEMERSGEGEVENS into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP HRNL_PR_UPA_WERKNEMERSGEGEVENS 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 HRNL_PR_UPA_WERKNEMERSGEGEVENS. 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 HRNL_PR_UPA_WERKNEMERSGEGEVENS 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_HRNL_PR_UPA_WERKNEMERSGEGEVENS TYPE STANDARD TABLE OF HRNL_PR_UPA_WERKNEMERSGEGEVENS,
      WA_HRNL_PR_UPA_WERKNEMERSGEGEVENS TYPE HRNL_PR_UPA_WERKNEMERSGEGEVENS,
      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: <HRNL_PR_UPA_WERKNEMERSGEGEVENS> TYPE HRNL_PR_UPA_WERKNEMERSGEGEVENS.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HRNL_PR_UPA_WERKNEMERSGEGEVENS
*  INTO TABLE @DATA(IT_HRNL_PR_UPA_WERKNEMERSGEGEVENS2).
*--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_HRNL_PR_UPA_WERKNEMERSGEGEVENS INDEX 1 INTO DATA(WA_HRNL_PR_UPA_WERKNEMERSGEGEVENS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<HRNL_PR_UPA_WERKNEMERSGEGEVENS>-CONTROLLER = 1.
<HRNL_PR_UPA_WERKNEMERSGEGEVENS>-LN_UBRUTO = 1.
<HRNL_PR_UPA_WERKNEMERSGEGEVENS>-LN_LB_PH = 1.
<HRNL_PR_UPA_WERKNEMERSGEGEVENS>-LN_SV = 1.
<HRNL_PR_UPA_WERKNEMERSGEGEVENS>-LN_TAB_BB = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_HRNL_PR_UPA_WERKNEMERSGEGEVENS-VAK_BSL, sy-vline,
  WA_HRNL_PR_UPA_WERKNEMERSGEGEVENS-OPG_RCHT_VAK_BSL, sy-vline,
  WA_HRNL_PR_UPA_WERKNEMERSGEGEVENS-EXTR_SAL, sy-vline,
  WA_HRNL_PR_UPA_WERKNEMERSGEGEVENS-OPG_RCHT_EXTR_SAL, sy-vline,
  WA_HRNL_PR_UPA_WERKNEMERSGEGEVENS-LN_IN_GLD, sy-vline,
  WA_HRNL_PR_UPA_WERKNEMERSGEGEVENS-LN_OWRK, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_HRNL_PR_UPA_WERKNEMERSGEGEVENS 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_HRNL_PR_UPA_WERKNEMERSGEGEVENS 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_HRNL_PR_UPA_WERKNEMERSGEGEVENS INTO WA_HRNL_PR_UPA_WERKNEMERSGEGEVENS.


*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_HRNL_PR_UPA_WERKNEMERSGEGEVENS_STR, 
CONTROLLER TYPE STRING,
LN_UBRUTO TYPE STRING,
LN_LB_PH TYPE STRING,
LN_SV TYPE STRING,
LN_TAB_BB TYPE STRING,
VAK_BSL TYPE STRING,
OPG_RCHT_VAK_BSL TYPE STRING,
EXTR_SAL TYPE STRING,
OPG_RCHT_EXTR_SAL TYPE STRING,
LN_IN_GLD TYPE STRING,
LN_OWRK TYPE STRING,
AANT_VERL_U TYPE STRING,
PROV TYPE STRING,
ONR_TSL TYPE STRING,
DAG_LOON TYPE STRING,
CONTROLLER TYPE STRING,
DGLN TYPE STRING,
AANT_DG_GEW TYPE STRING,
VERLOF TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HRNL_PR_UPA_WERKNEMERSGEGEVENS_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_HRNL_PR_UPA_WERKNEMERSGEGEVENS_STR-CONTROLLER sy-vline 
WA_HRNL_PR_UPA_WERKNEMERSGEGEVENS_STR-LN_UBRUTO sy-vline 
WA_HRNL_PR_UPA_WERKNEMERSGEGEVENS_STR-LN_LB_PH sy-vline 
WA_HRNL_PR_UPA_WERKNEMERSGEGEVENS_STR-LN_SV sy-vline 
WA_HRNL_PR_UPA_WERKNEMERSGEGEVENS_STR-LN_TAB_BB sy-vline 
WA_HRNL_PR_UPA_WERKNEMERSGEGEVENS_STR-VAK_BSL sy-vline 
WA_HRNL_PR_UPA_WERKNEMERSGEGEVENS_STR-OPG_RCHT_VAK_BSL sy-vline 
WA_HRNL_PR_UPA_WERKNEMERSGEGEVENS_STR-EXTR_SAL sy-vline 
WA_HRNL_PR_UPA_WERKNEMERSGEGEVENS_STR-OPG_RCHT_EXTR_SAL sy-vline 
WA_HRNL_PR_UPA_WERKNEMERSGEGEVENS_STR-LN_IN_GLD sy-vline 
WA_HRNL_PR_UPA_WERKNEMERSGEGEVENS_STR-LN_OWRK sy-vline 
WA_HRNL_PR_UPA_WERKNEMERSGEGEVENS_STR-AANT_VERL_U sy-vline 
WA_HRNL_PR_UPA_WERKNEMERSGEGEVENS_STR-PROV sy-vline 
WA_HRNL_PR_UPA_WERKNEMERSGEGEVENS_STR-ONR_TSL sy-vline 
WA_HRNL_PR_UPA_WERKNEMERSGEGEVENS_STR-DAG_LOON sy-vline 
WA_HRNL_PR_UPA_WERKNEMERSGEGEVENS_STR-CONTROLLER sy-vline 
WA_HRNL_PR_UPA_WERKNEMERSGEGEVENS_STR-DGLN sy-vline 
WA_HRNL_PR_UPA_WERKNEMERSGEGEVENS_STR-AANT_DG_GEW sy-vline 
WA_HRNL_PR_UPA_WERKNEMERSGEGEVENS_STR-VERLOF sy-vline      INTO ld_text SEPARATED BY SPACE.

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