ABAP Select data from SAP table HRAT_PENSION into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HRAT_PENSION
*  INTO TABLE @DATA(IT_HRAT_PENSION2).
*--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_HRAT_PENSION INDEX 1 INTO DATA(WA_HRAT_PENSION2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<HRAT_PENSION>-PEN_DATA = 1.
<HRAT_PENSION>-PERNR = 1.
<HRAT_PENSION>-ENAME = 1.
<HRAT_PENSION>-RETRE = 1.
<HRAT_PENSION>-GEBDA = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_HRAT_PENSION-PRGDA, sy-vline,
  WA_HRAT_PENSION-PKDAT, sy-vline,
  WA_HRAT_PENSION-ENTDA, sy-vline,
  WA_HRAT_PENSION-RETDA, sy-vline,
  WA_HRAT_PENSION-NECMO, sy-vline,
  WA_HRAT_PENSION-EFFMO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_HRAT_PENSION 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_HRAT_PENSION 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_HRAT_PENSION INTO WA_HRAT_PENSION.


*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_HRAT_PENSION-GBDAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_HRAT_PENSION-GBDAT.
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_HRAT_PENSION_STR, 
PEN_DATA TYPE STRING,
PERNR TYPE STRING,
ENAME TYPE STRING,
RETRE TYPE STRING,
GEBDA TYPE STRING,
PRGDA TYPE STRING,
PKDAT TYPE STRING,
ENTDA TYPE STRING,
RETDA TYPE STRING,
NECMO TYPE STRING,
EFFMO TYPE STRING,
RECPE TYPE STRING,
SUMCB TYPE STRING,
HICON TYPE STRING,
CALBA TYPE STRING,
DEBON TYPE STRING,
MULFA TYPE STRING,
PERCV TYPE STRING,
PENBA TYPE STRING,
PYEARS TYPE STRING,
PMONTHS TYPE STRING,
PDAYS TYPE STRING,
PADDY TYPE STRING,
PADDM TYPE STRING,
PADDD TYPE STRING,
PRPEN TYPE STRING,
SIDCB TYPE STRING,
SIDOT TYPE STRING,
CHILB TYPE STRING,
ADDIB TYPE STRING,
PENSI TYPE STRING,
WAERS TYPE STRING,
TESTPRINT TYPE STRING,
RECON_T TYPE STRING,
GBDAT TYPE STRING,
DATUM TYPE STRING,
SIMTX TYPE STRING,
FICSTX TYPE STRING,
REVTX TYPE STRING,
RETTX TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HRAT_PENSION_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_HRAT_PENSION_STR-PEN_DATA sy-vline 
WA_HRAT_PENSION_STR-PERNR sy-vline 
WA_HRAT_PENSION_STR-ENAME sy-vline 
WA_HRAT_PENSION_STR-RETRE sy-vline 
WA_HRAT_PENSION_STR-GEBDA sy-vline 
WA_HRAT_PENSION_STR-PRGDA sy-vline 
WA_HRAT_PENSION_STR-PKDAT sy-vline 
WA_HRAT_PENSION_STR-ENTDA sy-vline 
WA_HRAT_PENSION_STR-RETDA sy-vline 
WA_HRAT_PENSION_STR-NECMO sy-vline 
WA_HRAT_PENSION_STR-EFFMO sy-vline 
WA_HRAT_PENSION_STR-RECPE sy-vline 
WA_HRAT_PENSION_STR-SUMCB sy-vline 
WA_HRAT_PENSION_STR-HICON sy-vline 
WA_HRAT_PENSION_STR-CALBA sy-vline 
WA_HRAT_PENSION_STR-DEBON sy-vline 
WA_HRAT_PENSION_STR-MULFA sy-vline 
WA_HRAT_PENSION_STR-PERCV sy-vline 
WA_HRAT_PENSION_STR-PENBA sy-vline 
WA_HRAT_PENSION_STR-PYEARS sy-vline 
WA_HRAT_PENSION_STR-PMONTHS sy-vline 
WA_HRAT_PENSION_STR-PDAYS sy-vline 
WA_HRAT_PENSION_STR-PADDY sy-vline 
WA_HRAT_PENSION_STR-PADDM sy-vline 
WA_HRAT_PENSION_STR-PADDD sy-vline 
WA_HRAT_PENSION_STR-PRPEN sy-vline 
WA_HRAT_PENSION_STR-SIDCB sy-vline 
WA_HRAT_PENSION_STR-SIDOT sy-vline 
WA_HRAT_PENSION_STR-CHILB sy-vline 
WA_HRAT_PENSION_STR-ADDIB sy-vline 
WA_HRAT_PENSION_STR-PENSI sy-vline 
WA_HRAT_PENSION_STR-WAERS sy-vline 
WA_HRAT_PENSION_STR-TESTPRINT sy-vline 
WA_HRAT_PENSION_STR-RECON_T sy-vline 
WA_HRAT_PENSION_STR-GBDAT sy-vline 
WA_HRAT_PENSION_STR-DATUM sy-vline 
WA_HRAT_PENSION_STR-SIMTX sy-vline 
WA_HRAT_PENSION_STR-FICSTX sy-vline 
WA_HRAT_PENSION_STR-REVTX sy-vline 
WA_HRAT_PENSION_STR-RETTX sy-vline      INTO ld_text SEPARATED BY SPACE.

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