ABAP Select data from SAP table HRPY_DT_PERSON into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HRPY_DT_PERSON
*  INTO TABLE @DATA(IT_HRPY_DT_PERSON2).
*--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_HRPY_DT_PERSON INDEX 1 INTO DATA(WA_HRPY_DT_PERSON2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<HRPY_DT_PERSON>-GROUPING_REASON = 1.
<HRPY_DT_PERSON>-GROUPING_VALUE = 1.
<HRPY_DT_PERSON>-LGART = 1.
<HRPY_DT_PERSON>-PERMO = 1.
<HRPY_DT_PERSON>-PAPER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_HRPY_DT_PERSON-PABRJ, sy-vline,
  WA_HRPY_DT_PERSON-PABRP, sy-vline,
  WA_HRPY_DT_PERSON-PAYTY, sy-vline,
  WA_HRPY_DT_PERSON-PAYID, sy-vline,
  WA_HRPY_DT_PERSON-BONDT, sy-vline,
  WA_HRPY_DT_PERSON-BETRG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_HRPY_DT_PERSON 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_HRPY_DT_PERSON 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_HRPY_DT_PERSON INTO WA_HRPY_DT_PERSON.


*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 GJAHR, internal->external for field PABRJ
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_HRPY_DT_PERSON-PABRJ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_HRPY_DT_PERSON-PABRJ.
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_HRPY_DT_PERSON_STR, 
GROUPING_REASON TYPE STRING,
GROUPING_VALUE TYPE STRING,
LGART TYPE STRING,
PERMO TYPE STRING,
PAPER TYPE STRING,
PABRJ TYPE STRING,
PABRP TYPE STRING,
PAYTY TYPE STRING,
PAYID TYPE STRING,
BONDT TYPE STRING,
BETRG TYPE STRING,
AMT_CURR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HRPY_DT_PERSON_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_HRPY_DT_PERSON_STR-GROUPING_REASON sy-vline 
WA_HRPY_DT_PERSON_STR-GROUPING_VALUE sy-vline 
WA_HRPY_DT_PERSON_STR-LGART sy-vline 
WA_HRPY_DT_PERSON_STR-PERMO sy-vline 
WA_HRPY_DT_PERSON_STR-PAPER sy-vline 
WA_HRPY_DT_PERSON_STR-PABRJ sy-vline 
WA_HRPY_DT_PERSON_STR-PABRP sy-vline 
WA_HRPY_DT_PERSON_STR-PAYTY sy-vline 
WA_HRPY_DT_PERSON_STR-PAYID sy-vline 
WA_HRPY_DT_PERSON_STR-BONDT sy-vline 
WA_HRPY_DT_PERSON_STR-BETRG sy-vline 
WA_HRPY_DT_PERSON_STR-AMT_CURR sy-vline      INTO ld_text SEPARATED BY SPACE.

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