ABAP Select data from SAP table PPDST into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PPDST 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 PPDST. 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 PPDST 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_PPDST TYPE STANDARD TABLE OF PPDST,
      WA_PPDST TYPE PPDST,
      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: <PPDST> TYPE PPDST.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PPDST
*  INTO TABLE @DATA(IT_PPDST2).
*--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_PPDST INDEX 1 INTO DATA(WA_PPDST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PPDST>-CLIENT = 1.
<PPDST>-DOCNUM = 1.
<PPDST>-DOCLIN = 1.
<PPDST>-SEQNO = 1.
<PPDST>-GSBER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PPDST-KOSTL, sy-vline,
  WA_PPDST-AUFNR, sy-vline,
  WA_PPDST-KSTRG, sy-vline,
  WA_PPDST-POSNR, sy-vline,
  WA_PPDST-NPLNR, sy-vline,
  WA_PPDST-VORNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PPDST 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_PPDST 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_PPDST INTO WA_PPDST.


*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 ALPHA, internal->external for field KOSTL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PPDST-KOSTL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPDST-KOSTL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AUFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PPDST-AUFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPDST-AUFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSP, internal->external for field POSNR
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_PPDST-POSNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPDST-POSNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field NPLNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PPDST-NPLNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPDST-NPLNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit NUMCV, internal->external for field VORNR
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_PPDST-VORNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPDST-VORNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KDAUF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PPDST-KDAUF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPDST-KDAUF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit FMCIS, internal->external for field FIPOS
CALL FUNCTION 'CONVERSION_EXIT_FMCIS_OUTPUT'
  EXPORTING
    input =                      WA_PPDST-FIPOS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPDST-FIPOS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PPDST-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPDST-MEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit FMCIL, internal->external for field FIPEX
CALL FUNCTION 'CONVERSION_EXIT_FMCIL_OUTPUT'
  EXPORTING
    input =                      WA_PPDST-FIPEX
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPDST-FIPEX.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field GRANT_NBR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PPDST-GRANT_NBR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPDST-GRANT_NBR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SEGMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PPDST-SEGMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPDST-SEGMENT.
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_PPDST_STR, 
CLIENT TYPE STRING,
DOCNUM TYPE STRING,
DOCLIN TYPE STRING,
SEQNO TYPE STRING,
GSBER TYPE STRING,
KOSTL TYPE STRING,
AUFNR TYPE STRING,
KSTRG TYPE STRING,
POSNR TYPE STRING,
NPLNR TYPE STRING,
VORNR TYPE STRING,
KDAUF TYPE STRING,
KDPOS TYPE STRING,
FISTL TYPE STRING,
FIPOS TYPE STRING,
GEBER TYPE STRING,
MENGE TYPE STRING,
MEINS TYPE STRING,
CURTP TYPE STRING,
WAERS TYPE STRING,
WRBTR TYPE STRING,
FWBAS TYPE STRING,
AUART TYPE STRING,
COSUB TYPE STRING,
GEDEL TYPE STRING,
AUSUB TYPE STRING,
AWTYP_PRE TYPE STRING,
AWKEY_PRE TYPE STRING,
AWPOS_PRE TYPE STRING,
FCDEL TYPE STRING,
FIPEX TYPE STRING,
FKBER TYPE STRING,
FMSUB TYPE STRING,
GRANT_NBR TYPE STRING,
GMSUB TYPE STRING,
SEGMENT TYPE STRING,
SEGM_SUB TYPE STRING,
BASUB TYPE STRING,
BUKRS TYPE STRING,
EXPENSE_BUKRS TYPE STRING,
BUKRS_SUB TYPE STRING,
BADI_SUBST TYPE STRING,
BUDGET_PD TYPE STRING,
BPDEL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PPDST_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_PPDST_STR-CLIENT sy-vline 
WA_PPDST_STR-DOCNUM sy-vline 
WA_PPDST_STR-DOCLIN sy-vline 
WA_PPDST_STR-SEQNO sy-vline 
WA_PPDST_STR-GSBER sy-vline 
WA_PPDST_STR-KOSTL sy-vline 
WA_PPDST_STR-AUFNR sy-vline 
WA_PPDST_STR-KSTRG sy-vline 
WA_PPDST_STR-POSNR sy-vline 
WA_PPDST_STR-NPLNR sy-vline 
WA_PPDST_STR-VORNR sy-vline 
WA_PPDST_STR-KDAUF sy-vline 
WA_PPDST_STR-KDPOS sy-vline 
WA_PPDST_STR-FISTL sy-vline 
WA_PPDST_STR-FIPOS sy-vline 
WA_PPDST_STR-GEBER sy-vline 
WA_PPDST_STR-MENGE sy-vline 
WA_PPDST_STR-MEINS sy-vline 
WA_PPDST_STR-CURTP sy-vline 
WA_PPDST_STR-WAERS sy-vline 
WA_PPDST_STR-WRBTR sy-vline 
WA_PPDST_STR-FWBAS sy-vline 
WA_PPDST_STR-AUART sy-vline 
WA_PPDST_STR-COSUB sy-vline 
WA_PPDST_STR-GEDEL sy-vline 
WA_PPDST_STR-AUSUB sy-vline 
WA_PPDST_STR-AWTYP_PRE sy-vline 
WA_PPDST_STR-AWKEY_PRE sy-vline 
WA_PPDST_STR-AWPOS_PRE sy-vline 
WA_PPDST_STR-FCDEL sy-vline 
WA_PPDST_STR-FIPEX sy-vline 
WA_PPDST_STR-FKBER sy-vline 
WA_PPDST_STR-FMSUB sy-vline 
WA_PPDST_STR-GRANT_NBR sy-vline 
WA_PPDST_STR-GMSUB sy-vline 
WA_PPDST_STR-SEGMENT sy-vline 
WA_PPDST_STR-SEGM_SUB sy-vline 
WA_PPDST_STR-BASUB sy-vline 
WA_PPDST_STR-BUKRS sy-vline 
WA_PPDST_STR-EXPENSE_BUKRS sy-vline 
WA_PPDST_STR-BUKRS_SUB sy-vline 
WA_PPDST_STR-BADI_SUBST sy-vline 
WA_PPDST_STR-BUDGET_PD sy-vline 
WA_PPDST_STR-BPDEL sy-vline      INTO ld_text SEPARATED BY SPACE.

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