ABAP Select data from SAP table PPEPDV_CMPST into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PPEPDV_CMPST
*  INTO TABLE @DATA(IT_PPEPDV_CMPST2).
*--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_PPEPDV_CMPST INDEX 1 INTO DATA(WA_PPEPDV_CMPST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PPEPDV_CMPST>-MANDT = 1.
<PPEPDV_CMPST>-PNGUID = 1.
<PPEPDV_CMPST>-PNAME = 1.
<PPEPDV_CMPST>-NAMEID = 1.
<PPEPDV_CMPST>-NAMEID_OTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PPEPDV_CMPST-NAMEID_APPLOBJ, sy-vline,
  WA_PPEPDV_CMPST-CLINT, sy-vline,
  WA_PPEPDV_CMPST-PNTYPE, sy-vline,
  WA_PPEPDV_CMPST-APPLOBJ_TYPE, sy-vline,
  WA_PPEPDV_CMPST-TIMSTMP, sy-vline,
  WA_PPEPDV_CMPST-CREADAT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PPEPDV_CMPST 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_PPEPDV_CMPST 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_PPEPDV_CMPST INTO WA_PPEPDV_CMPST.


*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 LOGSYS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PPEPDV_CMPST-LOGSYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPEPDV_CMPST-LOGSYS.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field DOC_NUMBER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PPEPDV_CMPST-DOC_NUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPEPDV_CMPST-DOC_NUMBER.
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_PPEPDV_CMPST_STR, 
MANDT TYPE STRING,
PNGUID TYPE STRING,
PNAME TYPE STRING,
NAMEID TYPE STRING,
NAMEID_OTYPE TYPE STRING,
NAMEID_APPLOBJ TYPE STRING,
CLINT TYPE STRING,
PNTYPE TYPE STRING,
APPLOBJ_TYPE TYPE STRING,
TIMSTMP TYPE STRING,
CREADAT TYPE STRING,
CREABY TYPE STRING,
CHNGDAT TYPE STRING,
CHNGBY TYPE STRING,
LOGSYS TYPE STRING,
HISTFLG TYPE STRING,
CLASS TYPE STRING,
CLASSTYPE TYPE STRING,
PNTEXT TYPE STRING,
PVCMAND TYPE STRING,
PVCMULT TYPE STRING,
PVCFREE TYPE STRING,
PVCPRIO TYPE STRING,
PVGUID TYPE STRING,
PVNAME TYPE STRING,
PVTYPE TYPE STRING,
PVTIMSTMP TYPE STRING,
PVHISTFLG TYPE STRING,
CREADAT_PV TYPE STRING,
CREABY_PV TYPE STRING,
CHNGDAT_PV TYPE STRING,
CHNGBY_PV TYPE STRING,
LOGSYS_PV TYPE STRING,
AENNR_PV TYPE STRING,
DELFLG_PV TYPE STRING,
PVTEXT TYPE STRING,
PVCTYPE TYPE STRING,
CMPID TYPE STRING,
QUANT TYPE STRING,
QUNIT TYPE STRING,
DOCID TYPE STRING,
ROMS1 TYPE STRING,
PRCNT1 TYPE STRING,
ROMS2 TYPE STRING,
PRCNT2 TYPE STRING,
ROMS3 TYPE STRING,
PRCNT3 TYPE STRING,
ROMEI TYPE STRING,
ROMEN TYPE STRING,
ROKME TYPE STRING,
RFORM TYPE STRING,
QUANT_FIX TYPE STRING,
OTYPE TYPE STRING,
PGUID TYPE STRING,
OTYPE_REF TYPE STRING,
PGUID_REF TYPE STRING,
ALTGRP TYPE STRING,
CO_DATA_FLG TYPE STRING,
STDVAR_PV TYPE STRING,
PRIO_PV TYPE STRING,
KNOBJ_PV TYPE STRING,
CUOBJ_PV TYPE STRING,
OTYPE_PV TYPE STRING,
PGUID_PV TYPE STRING,
DMUCNT TYPE STRING,
AENNR TYPE STRING,
CMPEXT TYPE STRING,
CMPID_TYPE TYPE STRING,
CMPID_TEXT TYPE STRING,
DOC_KIND TYPE STRING,
DOC_NUMBER TYPE STRING,
DOC_VERSION TYPE STRING,
DOC_PART TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PPEPDV_CMPST_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_PPEPDV_CMPST_STR-MANDT sy-vline 
WA_PPEPDV_CMPST_STR-PNGUID sy-vline 
WA_PPEPDV_CMPST_STR-PNAME sy-vline 
WA_PPEPDV_CMPST_STR-NAMEID sy-vline 
WA_PPEPDV_CMPST_STR-NAMEID_OTYPE sy-vline 
WA_PPEPDV_CMPST_STR-NAMEID_APPLOBJ sy-vline 
WA_PPEPDV_CMPST_STR-CLINT sy-vline 
WA_PPEPDV_CMPST_STR-PNTYPE sy-vline 
WA_PPEPDV_CMPST_STR-APPLOBJ_TYPE sy-vline 
WA_PPEPDV_CMPST_STR-TIMSTMP sy-vline 
WA_PPEPDV_CMPST_STR-CREADAT sy-vline 
WA_PPEPDV_CMPST_STR-CREABY sy-vline 
WA_PPEPDV_CMPST_STR-CHNGDAT sy-vline 
WA_PPEPDV_CMPST_STR-CHNGBY sy-vline 
WA_PPEPDV_CMPST_STR-LOGSYS sy-vline 
WA_PPEPDV_CMPST_STR-HISTFLG sy-vline 
WA_PPEPDV_CMPST_STR-CLASS sy-vline 
WA_PPEPDV_CMPST_STR-CLASSTYPE sy-vline 
WA_PPEPDV_CMPST_STR-PNTEXT sy-vline 
WA_PPEPDV_CMPST_STR-PVCMAND sy-vline 
WA_PPEPDV_CMPST_STR-PVCMULT sy-vline 
WA_PPEPDV_CMPST_STR-PVCFREE sy-vline 
WA_PPEPDV_CMPST_STR-PVCPRIO sy-vline 
WA_PPEPDV_CMPST_STR-PVGUID sy-vline 
WA_PPEPDV_CMPST_STR-PVNAME sy-vline 
WA_PPEPDV_CMPST_STR-PVTYPE sy-vline 
WA_PPEPDV_CMPST_STR-PVTIMSTMP sy-vline 
WA_PPEPDV_CMPST_STR-PVHISTFLG sy-vline 
WA_PPEPDV_CMPST_STR-CREADAT_PV sy-vline 
WA_PPEPDV_CMPST_STR-CREABY_PV sy-vline 
WA_PPEPDV_CMPST_STR-CHNGDAT_PV sy-vline 
WA_PPEPDV_CMPST_STR-CHNGBY_PV sy-vline 
WA_PPEPDV_CMPST_STR-LOGSYS_PV sy-vline 
WA_PPEPDV_CMPST_STR-AENNR_PV sy-vline 
WA_PPEPDV_CMPST_STR-DELFLG_PV sy-vline 
WA_PPEPDV_CMPST_STR-PVTEXT sy-vline 
WA_PPEPDV_CMPST_STR-PVCTYPE sy-vline 
WA_PPEPDV_CMPST_STR-CMPID sy-vline 
WA_PPEPDV_CMPST_STR-QUANT sy-vline 
WA_PPEPDV_CMPST_STR-QUNIT sy-vline 
WA_PPEPDV_CMPST_STR-DOCID sy-vline 
WA_PPEPDV_CMPST_STR-ROMS1 sy-vline 
WA_PPEPDV_CMPST_STR-PRCNT1 sy-vline 
WA_PPEPDV_CMPST_STR-ROMS2 sy-vline 
WA_PPEPDV_CMPST_STR-PRCNT2 sy-vline 
WA_PPEPDV_CMPST_STR-ROMS3 sy-vline 
WA_PPEPDV_CMPST_STR-PRCNT3 sy-vline 
WA_PPEPDV_CMPST_STR-ROMEI sy-vline 
WA_PPEPDV_CMPST_STR-ROMEN sy-vline 
WA_PPEPDV_CMPST_STR-ROKME sy-vline 
WA_PPEPDV_CMPST_STR-RFORM sy-vline 
WA_PPEPDV_CMPST_STR-QUANT_FIX sy-vline 
WA_PPEPDV_CMPST_STR-OTYPE sy-vline 
WA_PPEPDV_CMPST_STR-PGUID sy-vline 
WA_PPEPDV_CMPST_STR-OTYPE_REF sy-vline 
WA_PPEPDV_CMPST_STR-PGUID_REF sy-vline 
WA_PPEPDV_CMPST_STR-ALTGRP sy-vline 
WA_PPEPDV_CMPST_STR-CO_DATA_FLG sy-vline 
WA_PPEPDV_CMPST_STR-STDVAR_PV sy-vline 
WA_PPEPDV_CMPST_STR-PRIO_PV sy-vline 
WA_PPEPDV_CMPST_STR-KNOBJ_PV sy-vline 
WA_PPEPDV_CMPST_STR-CUOBJ_PV sy-vline 
WA_PPEPDV_CMPST_STR-OTYPE_PV sy-vline 
WA_PPEPDV_CMPST_STR-PGUID_PV sy-vline 
WA_PPEPDV_CMPST_STR-DMUCNT sy-vline 
WA_PPEPDV_CMPST_STR-AENNR sy-vline 
WA_PPEPDV_CMPST_STR-CMPEXT sy-vline 
WA_PPEPDV_CMPST_STR-CMPID_TYPE sy-vline 
WA_PPEPDV_CMPST_STR-CMPID_TEXT sy-vline 
WA_PPEPDV_CMPST_STR-DOC_KIND sy-vline 
WA_PPEPDV_CMPST_STR-DOC_NUMBER sy-vline 
WA_PPEPDV_CMPST_STR-DOC_VERSION sy-vline 
WA_PPEPDV_CMPST_STR-DOC_PART sy-vline      INTO ld_text SEPARATED BY SPACE.

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