ABAP Select data from SAP table PPLKO 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 PPLKO 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 PPLKO. 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 PPLKO 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_PPLKO TYPE STANDARD TABLE OF PPLKO,
      WA_PPLKO TYPE PPLKO,
      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: <PPLKO> TYPE PPLKO.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PPLKO
*  INTO TABLE @DATA(IT_PPLKO2).
*--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_PPLKO INDEX 1 INTO DATA(WA_PPLKO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PPLKO>-MANDT = 1.
<PPLKO>-PLNTY = 1.
<PPLKO>-PLNNR = 1.
<PPLKO>-PLNAL = 1.
<PPLKO>-ZAEHL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PPLKO-DATUV, sy-vline,
  WA_PPLKO-TECHV, sy-vline,
  WA_PPLKO-AENNR, sy-vline,
  WA_PPLKO-LOEKZ, sy-vline,
  WA_PPLKO-PARKZ, sy-vline,
  WA_PPLKO-ANDAT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PPLKO 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_PPLKO 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_PPLKO INTO WA_PPLKO.


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

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

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

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

*Conversion exit ISOLA, internal->external for field TXTSP
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_PPLKO-TXTSP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPLKO-TXTSP.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit MATN1, internal->external for field ISTRU
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_PPLKO-ISTRU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPLKO-ISTRU.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit KONPT, internal->external for field PSPNR
CALL FUNCTION 'CONVERSION_EXIT_KONPT_OUTPUT'
  EXPORTING
    input =                      WA_PPLKO-PSPNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPLKO-PSPNR.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit ALPHA, internal->external for field VERSN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PPLKO-VERSN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPLKO-VERSN.
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_PPLKO_STR, 
MANDT TYPE STRING,
PLNTY TYPE STRING,
PLNNR TYPE STRING,
PLNAL TYPE STRING,
ZAEHL TYPE STRING,
DATUV TYPE STRING,
TECHV TYPE STRING,
AENNR TYPE STRING,
LOEKZ TYPE STRING,
PARKZ TYPE STRING,
ANDAT TYPE STRING,
ANNAM TYPE STRING,
AEDAT TYPE STRING,
AENAM TYPE STRING,
VERWE TYPE STRING,
WERKS TYPE STRING,
STATU TYPE STRING,
PLNME TYPE STRING,
LOSVN TYPE STRING,
LOSBS TYPE STRING,
VAGRP TYPE STRING,
AESZN TYPE STRING,
KTEXT TYPE STRING,
TXTSP TYPE STRING,
ABDAT TYPE STRING,
ABANZ TYPE STRING,
PROFIDNETZ TYPE STRING,
KOKRS TYPE STRING,
QVEWERKS TYPE STRING,
QVEMENGE TYPE STRING,
QVEVERSION TYPE STRING,
QVEDATUM TYPE STRING,
QVEGRUPPE TYPE STRING,
QVECODE TYPE STRING,
QDYNREGEL TYPE STRING,
QDYNHEAD TYPE STRING,
QPRZIEHVER TYPE STRING,
QVERSNPRZV TYPE STRING,
QKZRASTER TYPE STRING,
QDYNSTRING TYPE STRING,
STRAT TYPE STRING,
PPOOL TYPE STRING,
ISTRU TYPE STRING,
IWERK TYPE STRING,
ANLZU TYPE STRING,
ARBID TYPE STRING,
EXTNUM TYPE STRING,
DELKZ TYPE STRING,
ARBTY TYPE STRING,
STUPR TYPE STRING,
CLNDR TYPE STRING,
PRTYP TYPE STRING,
REODAT TYPE STRING,
NETID TYPE STRING,
FLG_CHK TYPE STRING,
PSPNR TYPE STRING,
TTRAS TYPE STRING,
KZKFG TYPE STRING,
PLNNR_ALT TYPE STRING,
FLG_CAPO TYPE STRING,
STLTY TYPE STRING,
STLNR TYPE STRING,
STLAL TYPE STRING,
SLWBEZ TYPE STRING,
PPKZTLZU TYPE STRING,
CHRULE TYPE STRING,
CCOAA TYPE STRING,
ST_ARBID TYPE STRING,
MEINH TYPE STRING,
UMREZ TYPE STRING,
UMREN TYPE STRING,
BMSCH TYPE STRING,
ADPSP TYPE STRING,
VALID_TO TYPE STRING,
LOEKZ_INHERITED TYPE STRING,
DUMMY_PLKO_INCL_EEW_PS TYPE STRING,
MS_FLAG TYPE STRING,
CHANGEDDATETIME TYPE STRING,
TSTMP_BW TYPE STRING,
MES_ROUTINGID TYPE STRING,
VERSN TYPE STRING,
CRTYPE TYPE STRING,
EFFTYP TYPE STRING,
XHIERTL TYPE STRING,
TL_EXTID TYPE STRING,
KZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PPLKO_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_PPLKO_STR-MANDT sy-vline 
WA_PPLKO_STR-PLNTY sy-vline 
WA_PPLKO_STR-PLNNR sy-vline 
WA_PPLKO_STR-PLNAL sy-vline 
WA_PPLKO_STR-ZAEHL sy-vline 
WA_PPLKO_STR-DATUV sy-vline 
WA_PPLKO_STR-TECHV sy-vline 
WA_PPLKO_STR-AENNR sy-vline 
WA_PPLKO_STR-LOEKZ sy-vline 
WA_PPLKO_STR-PARKZ sy-vline 
WA_PPLKO_STR-ANDAT sy-vline 
WA_PPLKO_STR-ANNAM sy-vline 
WA_PPLKO_STR-AEDAT sy-vline 
WA_PPLKO_STR-AENAM sy-vline 
WA_PPLKO_STR-VERWE sy-vline 
WA_PPLKO_STR-WERKS sy-vline 
WA_PPLKO_STR-STATU sy-vline 
WA_PPLKO_STR-PLNME sy-vline 
WA_PPLKO_STR-LOSVN sy-vline 
WA_PPLKO_STR-LOSBS sy-vline 
WA_PPLKO_STR-VAGRP sy-vline 
WA_PPLKO_STR-AESZN sy-vline 
WA_PPLKO_STR-KTEXT sy-vline 
WA_PPLKO_STR-TXTSP sy-vline 
WA_PPLKO_STR-ABDAT sy-vline 
WA_PPLKO_STR-ABANZ sy-vline 
WA_PPLKO_STR-PROFIDNETZ sy-vline 
WA_PPLKO_STR-KOKRS sy-vline 
WA_PPLKO_STR-QVEWERKS sy-vline 
WA_PPLKO_STR-QVEMENGE sy-vline 
WA_PPLKO_STR-QVEVERSION sy-vline 
WA_PPLKO_STR-QVEDATUM sy-vline 
WA_PPLKO_STR-QVEGRUPPE sy-vline 
WA_PPLKO_STR-QVECODE sy-vline 
WA_PPLKO_STR-QDYNREGEL sy-vline 
WA_PPLKO_STR-QDYNHEAD sy-vline 
WA_PPLKO_STR-QPRZIEHVER sy-vline 
WA_PPLKO_STR-QVERSNPRZV sy-vline 
WA_PPLKO_STR-QKZRASTER sy-vline 
WA_PPLKO_STR-QDYNSTRING sy-vline 
WA_PPLKO_STR-STRAT sy-vline 
WA_PPLKO_STR-PPOOL sy-vline 
WA_PPLKO_STR-ISTRU sy-vline 
WA_PPLKO_STR-IWERK sy-vline 
WA_PPLKO_STR-ANLZU sy-vline 
WA_PPLKO_STR-ARBID sy-vline 
WA_PPLKO_STR-EXTNUM sy-vline 
WA_PPLKO_STR-DELKZ sy-vline 
WA_PPLKO_STR-ARBTY sy-vline 
WA_PPLKO_STR-STUPR sy-vline 
WA_PPLKO_STR-CLNDR sy-vline 
WA_PPLKO_STR-PRTYP sy-vline 
WA_PPLKO_STR-REODAT sy-vline 
WA_PPLKO_STR-NETID sy-vline 
WA_PPLKO_STR-FLG_CHK sy-vline 
WA_PPLKO_STR-PSPNR sy-vline 
WA_PPLKO_STR-TTRAS sy-vline 
WA_PPLKO_STR-KZKFG sy-vline 
WA_PPLKO_STR-PLNNR_ALT sy-vline 
WA_PPLKO_STR-FLG_CAPO sy-vline 
WA_PPLKO_STR-STLTY sy-vline 
WA_PPLKO_STR-STLNR sy-vline 
WA_PPLKO_STR-STLAL sy-vline 
WA_PPLKO_STR-SLWBEZ sy-vline 
WA_PPLKO_STR-PPKZTLZU sy-vline 
WA_PPLKO_STR-CHRULE sy-vline 
WA_PPLKO_STR-CCOAA sy-vline 
WA_PPLKO_STR-ST_ARBID sy-vline 
WA_PPLKO_STR-MEINH sy-vline 
WA_PPLKO_STR-UMREZ sy-vline 
WA_PPLKO_STR-UMREN sy-vline 
WA_PPLKO_STR-BMSCH sy-vline 
WA_PPLKO_STR-ADPSP sy-vline 
WA_PPLKO_STR-VALID_TO sy-vline 
WA_PPLKO_STR-LOEKZ_INHERITED sy-vline 
WA_PPLKO_STR-DUMMY_PLKO_INCL_EEW_PS sy-vline 
WA_PPLKO_STR-MS_FLAG sy-vline 
WA_PPLKO_STR-CHANGEDDATETIME sy-vline 
WA_PPLKO_STR-TSTMP_BW sy-vline 
WA_PPLKO_STR-MES_ROUTINGID sy-vline 
WA_PPLKO_STR-VERSN sy-vline 
WA_PPLKO_STR-CRTYPE sy-vline 
WA_PPLKO_STR-EFFTYP sy-vline 
WA_PPLKO_STR-XHIERTL sy-vline 
WA_PPLKO_STR-TL_EXTID sy-vline 
WA_PPLKO_STR-KZ sy-vline      INTO ld_text SEPARATED BY SPACE.

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