ABAP Select data from SAP table HRFRPBS4_LEVEL_SITUATION into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP HRFRPBS4_LEVEL_SITUATION 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 HRFRPBS4_LEVEL_SITUATION. 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 HRFRPBS4_LEVEL_SITUATION 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_HRFRPBS4_LEVEL_SITUATION TYPE STANDARD TABLE OF HRFRPBS4_LEVEL_SITUATION,
      WA_HRFRPBS4_LEVEL_SITUATION TYPE HRFRPBS4_LEVEL_SITUATION,
      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: <HRFRPBS4_LEVEL_SITUATION> TYPE HRFRPBS4_LEVEL_SITUATION.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_HRFRPBS4_LEVEL_SITUATION.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM HRFRPBS4_LEVEL_SITUATION
  INTO TABLE IT_HRFRPBS4_LEVEL_SITUATION.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HRFRPBS4_LEVEL_SITUATION
*  INTO TABLE @DATA(IT_HRFRPBS4_LEVEL_SITUATION2).
*--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_HRFRPBS4_LEVEL_SITUATION INDEX 1 INTO DATA(WA_HRFRPBS4_LEVEL_SITUATION2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_HRFRPBS4_LEVEL_SITUATION ASSIGNING <HRFRPBS4_LEVEL_SITUATION>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<HRFRPBS4_LEVEL_SITUATION>-LEVEL = 1.
<HRFRPBS4_LEVEL_SITUATION>-SCALE = 1.
<HRFRPBS4_LEVEL_SITUATION>-MOLGA = 1.
<HRFRPBS4_LEVEL_SITUATION>-TRFAR = 1.
<HRFRPBS4_LEVEL_SITUATION>-TRFGB = 1.

ENDLOOP.

LOOP AT IT_HRFRPBS4_LEVEL_SITUATION INTO WA_HRFRPBS4_LEVEL_SITUATION.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_HRFRPBS4_LEVEL_SITUATION-TRFGR, sy-vline,
  WA_HRFRPBS4_LEVEL_SITUATION-LEVEL, sy-vline,
  WA_HRFRPBS4_LEVEL_SITUATION-PERIOD, sy-vline,
  WA_HRFRPBS4_LEVEL_SITUATION-BEGDA, sy-vline,
  WA_HRFRPBS4_LEVEL_SITUATION-ENDDA, sy-vline,
  WA_HRFRPBS4_LEVEL_SITUATION-SENIORITY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_HRFRPBS4_LEVEL_SITUATION 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_HRFRPBS4_LEVEL_SITUATION 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_HRFRPBS4_LEVEL_SITUATION INTO WA_HRFRPBS4_LEVEL_SITUATION.


*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_HRFRPBS4_LEVEL_SITUATION_STR, 
LEVEL TYPE STRING,
SCALE TYPE STRING,
MOLGA TYPE STRING,
TRFAR TYPE STRING,
TRFGB TYPE STRING,
TRFGR TYPE STRING,
LEVEL TYPE STRING,
PERIOD TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
SENIORITY TYPE STRING,
DURYY TYPE STRING,
DURMM TYPE STRING,
DURDD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HRFRPBS4_LEVEL_SITUATION_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_HRFRPBS4_LEVEL_SITUATION_STR-LEVEL sy-vline 
WA_HRFRPBS4_LEVEL_SITUATION_STR-SCALE sy-vline 
WA_HRFRPBS4_LEVEL_SITUATION_STR-MOLGA sy-vline 
WA_HRFRPBS4_LEVEL_SITUATION_STR-TRFAR sy-vline 
WA_HRFRPBS4_LEVEL_SITUATION_STR-TRFGB sy-vline 
WA_HRFRPBS4_LEVEL_SITUATION_STR-TRFGR sy-vline 
WA_HRFRPBS4_LEVEL_SITUATION_STR-LEVEL sy-vline 
WA_HRFRPBS4_LEVEL_SITUATION_STR-PERIOD sy-vline 
WA_HRFRPBS4_LEVEL_SITUATION_STR-BEGDA sy-vline 
WA_HRFRPBS4_LEVEL_SITUATION_STR-ENDDA sy-vline 
WA_HRFRPBS4_LEVEL_SITUATION_STR-SENIORITY sy-vline 
WA_HRFRPBS4_LEVEL_SITUATION_STR-DURYY sy-vline 
WA_HRFRPBS4_LEVEL_SITUATION_STR-DURMM sy-vline 
WA_HRFRPBS4_LEVEL_SITUATION_STR-DURDD sy-vline      INTO ld_text SEPARATED BY SPACE.

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