ABAP Select data from SAP table PUN_DP into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PUN_DP
*  INTO TABLE @DATA(IT_PUN_DP2).
*--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_PUN_DP INDEX 1 INTO DATA(WA_PUN_DP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PUN_DP>-INTOBJPS = 1.
<PUN_DP>-BEGDA = 1.
<PUN_DP>-ENDDA = 1.
<PUN_DP>-FANAM = 1.
<PUN_DP>-FAVOR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PUN_DP-OBJPS, sy-vline,
  WA_PUN_DP-ORG_OBJPS, sy-vline,
  WA_PUN_DP-SUBTY, sy-vline,
  WA_PUN_DP-ELIEVE, sy-vline,
  WA_PUN_DP-ELIOVR, sy-vline,
  WA_PUN_DP-EVEAMT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PUN_DP 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_PUN_DP 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_PUN_DP INTO WA_PUN_DP.


*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 FGBDT
CALL FUNCTION 'CONVERSION_EXIT_PDATE_OUTPUT'
  EXPORTING
    input =                      WA_PUN_DP-FGBDT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PUN_DP-FGBDT.
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_PUN_DP_STR, 
INTOBJPS TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
FANAM TYPE STRING,
FAVOR TYPE STRING,
OBJPS TYPE STRING,
ORG_OBJPS TYPE STRING,
SUBTY TYPE STRING,
ELIEVE TYPE STRING,
ELIOVR TYPE STRING,
EVEAMT TYPE STRING,
LGART TYPE STRING,
AMOUNT TYPE STRING,
WAERS TYPE STRING,
NUM TYPE STRING,
UNIT TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
DO_SUM TYPE STRING,
AMTTAB TYPE STRING,
FGBDT TYPE STRING,
PRIMCHILD TYPE STRING,
KDBSL TYPE STRING,
DPAGE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PUN_DP_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_PUN_DP_STR-INTOBJPS sy-vline 
WA_PUN_DP_STR-BEGDA sy-vline 
WA_PUN_DP_STR-ENDDA sy-vline 
WA_PUN_DP_STR-FANAM sy-vline 
WA_PUN_DP_STR-FAVOR sy-vline 
WA_PUN_DP_STR-OBJPS sy-vline 
WA_PUN_DP_STR-ORG_OBJPS sy-vline 
WA_PUN_DP_STR-SUBTY sy-vline 
WA_PUN_DP_STR-ELIEVE sy-vline 
WA_PUN_DP_STR-ELIOVR sy-vline 
WA_PUN_DP_STR-EVEAMT sy-vline 
WA_PUN_DP_STR-LGART sy-vline 
WA_PUN_DP_STR-AMOUNT sy-vline 
WA_PUN_DP_STR-WAERS sy-vline 
WA_PUN_DP_STR-NUM sy-vline 
WA_PUN_DP_STR-UNIT sy-vline 
WA_PUN_DP_STR-BEGDA sy-vline 
WA_PUN_DP_STR-ENDDA sy-vline 
WA_PUN_DP_STR-DO_SUM sy-vline 
WA_PUN_DP_STR-AMTTAB sy-vline 
WA_PUN_DP_STR-FGBDT sy-vline 
WA_PUN_DP_STR-PRIMCHILD sy-vline 
WA_PUN_DP_STR-KDBSL sy-vline 
WA_PUN_DP_STR-DPAGE sy-vline      INTO ld_text SEPARATED BY SPACE.

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