ABAP Select data from SAP table PLKO_DI into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PLKO_DI
*  INTO TABLE @DATA(IT_PLKO_DI2).
*--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_PLKO_DI INDEX 1 INTO DATA(WA_PLKO_DI2).


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

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

ENDLOOP.

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

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


*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_PLKO_DI-PLNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PLKO_DI-PLNNR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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