ABAP Select data from SAP table IST_NLM_WFM_POWL_ORDER_CAT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IST_NLM_WFM_POWL_ORDER_CAT
*  INTO TABLE @DATA(IT_IST_NLM_WFM_POWL_ORDER_CAT2).
*--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_IST_NLM_WFM_POWL_ORDER_CAT INDEX 1 INTO DATA(WA_IST_NLM_WFM_POWL_ORDER_CAT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IST_NLM_WFM_POWL_ORDER_CAT>-AUFNR = 1.
<IST_NLM_WFM_POWL_ORDER_CAT>-AUART = 1.
<IST_NLM_WFM_POWL_ORDER_CAT>-AUARTT = 1.
<IST_NLM_WFM_POWL_ORDER_CAT>-PRIOK = 1.
<IST_NLM_WFM_POWL_ORDER_CAT>-PRIOKX = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IST_NLM_WFM_POWL_ORDER_CAT-STTXT, sy-vline,
  WA_IST_NLM_WFM_POWL_ORDER_CAT-USTXT, sy-vline,
  WA_IST_NLM_WFM_POWL_ORDER_CAT-KTEXT, sy-vline,
  WA_IST_NLM_WFM_POWL_ORDER_CAT-VORNR, sy-vline,
  WA_IST_NLM_WFM_POWL_ORDER_CAT-LTXA1, sy-vline,
  WA_IST_NLM_WFM_POWL_ORDER_CAT-BANFN, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IST_NLM_WFM_POWL_ORDER_CAT 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_IST_NLM_WFM_POWL_ORDER_CAT 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_IST_NLM_WFM_POWL_ORDER_CAT INTO WA_IST_NLM_WFM_POWL_ORDER_CAT.


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

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

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

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

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

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

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

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

*Conversion exit GERNR, internal->external for field SERIALNR
CALL FUNCTION 'CONVERSION_EXIT_GERNR_OUTPUT'
  EXPORTING
    input =                      WA_IST_NLM_WFM_POWL_ORDER_CAT-SERIALNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IST_NLM_WFM_POWL_ORDER_CAT-SERIALNR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit MATN1, internal->external for field SERMAT
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_IST_NLM_WFM_POWL_ORDER_CAT-SERMAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IST_NLM_WFM_POWL_ORDER_CAT-SERMAT.
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_IST_NLM_WFM_POWL_ORDER_CAT_STR, 
AUFNR TYPE STRING,
AUART TYPE STRING,
AUARTT TYPE STRING,
PRIOK TYPE STRING,
PRIOKX TYPE STRING,
STTXT TYPE STRING,
USTXT TYPE STRING,
KTEXT TYPE STRING,
VORNR TYPE STRING,
LTXA1 TYPE STRING,
BANFN TYPE STRING,
AUDISP TYPE STRING,
WARPL TYPE STRING,
GSTRP TYPE STRING,
GSUZP TYPE STRING,
GLTRP TYPE STRING,
GLUZP TYPE STRING,
GSTRS TYPE STRING,
GSUZS TYPE STRING,
GLTRS TYPE STRING,
GLUZS TYPE STRING,
RUECK TYPE STRING,
COMPMATNR TYPE STRING,
COMPMENGE TYPE STRING,
COMPMATXT TYPE STRING,
COMPEINHEIT TYPE STRING,
ERNAM TYPE STRING,
ERDAT TYPE STRING,
QMNUM TYPE STRING,
QMART TYPE STRING,
QMARTX TYPE STRING,
QM_STTXT TYPE STRING,
QM_USTXT TYPE STRING,
QM_DESCRIPTION TYPE STRING,
AUSVN TYPE STRING,
AUZTV TYPE STRING,
AUSBS TYPE STRING,
AUZTB TYPE STRING,
MSAUS TYPE STRING,
QMNAM TYPE STRING,
QMDAT TYPE STRING,
FEGRP TYPE STRING,
FECOD TYPE STRING,
TXTCDFE TYPE STRING,
URGRP TYPE STRING,
URCOD TYPE STRING,
TXTCDUR TYPE STRING,
TPLNR TYPE STRING,
PLTXT TYPE STRING,
FLTYP TYPE STRING,
POST_CODE1 TYPE STRING,
CITY1 TYPE STRING,
STREET TYPE STRING,
ADDR_LINE TYPE STRING,
EQUNR TYPE STRING,
EQTYP TYPE STRING,
EQKTX TYPE STRING,
SERIALNR TYPE STRING,
HERST TYPE STRING,
SERGE TYPE STRING,
HEQUI TYPE STRING,
SERMAT TYPE STRING,
MAKTX TYPE STRING,
OBJNR TYPE STRING,
QM_OBJNR TYPE STRING,
PERNR TYPE STRING,
GETRI TYPE STRING,
GEWRK TYPE STRING,
AWERK TYPE STRING,
NAMEST TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IST_NLM_WFM_POWL_ORDER_CAT_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_IST_NLM_WFM_POWL_ORDER_CAT_STR-AUFNR sy-vline 
WA_IST_NLM_WFM_POWL_ORDER_CAT_STR-AUART sy-vline 
WA_IST_NLM_WFM_POWL_ORDER_CAT_STR-AUARTT sy-vline 
WA_IST_NLM_WFM_POWL_ORDER_CAT_STR-PRIOK sy-vline 
WA_IST_NLM_WFM_POWL_ORDER_CAT_STR-PRIOKX sy-vline 
WA_IST_NLM_WFM_POWL_ORDER_CAT_STR-STTXT sy-vline 
WA_IST_NLM_WFM_POWL_ORDER_CAT_STR-USTXT sy-vline 
WA_IST_NLM_WFM_POWL_ORDER_CAT_STR-KTEXT sy-vline 
WA_IST_NLM_WFM_POWL_ORDER_CAT_STR-VORNR sy-vline 
WA_IST_NLM_WFM_POWL_ORDER_CAT_STR-LTXA1 sy-vline 
WA_IST_NLM_WFM_POWL_ORDER_CAT_STR-BANFN sy-vline 
WA_IST_NLM_WFM_POWL_ORDER_CAT_STR-AUDISP sy-vline 
WA_IST_NLM_WFM_POWL_ORDER_CAT_STR-WARPL sy-vline 
WA_IST_NLM_WFM_POWL_ORDER_CAT_STR-GSTRP sy-vline 
WA_IST_NLM_WFM_POWL_ORDER_CAT_STR-GSUZP sy-vline 
WA_IST_NLM_WFM_POWL_ORDER_CAT_STR-GLTRP sy-vline 
WA_IST_NLM_WFM_POWL_ORDER_CAT_STR-GLUZP sy-vline 
WA_IST_NLM_WFM_POWL_ORDER_CAT_STR-GSTRS sy-vline 
WA_IST_NLM_WFM_POWL_ORDER_CAT_STR-GSUZS sy-vline 
WA_IST_NLM_WFM_POWL_ORDER_CAT_STR-GLTRS sy-vline 
WA_IST_NLM_WFM_POWL_ORDER_CAT_STR-GLUZS sy-vline 
WA_IST_NLM_WFM_POWL_ORDER_CAT_STR-RUECK sy-vline 
WA_IST_NLM_WFM_POWL_ORDER_CAT_STR-COMPMATNR sy-vline 
WA_IST_NLM_WFM_POWL_ORDER_CAT_STR-COMPMENGE sy-vline 
WA_IST_NLM_WFM_POWL_ORDER_CAT_STR-COMPMATXT sy-vline 
WA_IST_NLM_WFM_POWL_ORDER_CAT_STR-COMPEINHEIT sy-vline 
WA_IST_NLM_WFM_POWL_ORDER_CAT_STR-ERNAM sy-vline 
WA_IST_NLM_WFM_POWL_ORDER_CAT_STR-ERDAT sy-vline 
WA_IST_NLM_WFM_POWL_ORDER_CAT_STR-QMNUM sy-vline 
WA_IST_NLM_WFM_POWL_ORDER_CAT_STR-QMART sy-vline 
WA_IST_NLM_WFM_POWL_ORDER_CAT_STR-QMARTX sy-vline 
WA_IST_NLM_WFM_POWL_ORDER_CAT_STR-QM_STTXT sy-vline 
WA_IST_NLM_WFM_POWL_ORDER_CAT_STR-QM_USTXT sy-vline 
WA_IST_NLM_WFM_POWL_ORDER_CAT_STR-QM_DESCRIPTION sy-vline 
WA_IST_NLM_WFM_POWL_ORDER_CAT_STR-AUSVN sy-vline 
WA_IST_NLM_WFM_POWL_ORDER_CAT_STR-AUZTV sy-vline 
WA_IST_NLM_WFM_POWL_ORDER_CAT_STR-AUSBS sy-vline 
WA_IST_NLM_WFM_POWL_ORDER_CAT_STR-AUZTB sy-vline 
WA_IST_NLM_WFM_POWL_ORDER_CAT_STR-MSAUS sy-vline 
WA_IST_NLM_WFM_POWL_ORDER_CAT_STR-QMNAM sy-vline 
WA_IST_NLM_WFM_POWL_ORDER_CAT_STR-QMDAT sy-vline 
WA_IST_NLM_WFM_POWL_ORDER_CAT_STR-FEGRP sy-vline 
WA_IST_NLM_WFM_POWL_ORDER_CAT_STR-FECOD sy-vline 
WA_IST_NLM_WFM_POWL_ORDER_CAT_STR-TXTCDFE sy-vline 
WA_IST_NLM_WFM_POWL_ORDER_CAT_STR-URGRP sy-vline 
WA_IST_NLM_WFM_POWL_ORDER_CAT_STR-URCOD sy-vline 
WA_IST_NLM_WFM_POWL_ORDER_CAT_STR-TXTCDUR sy-vline 
WA_IST_NLM_WFM_POWL_ORDER_CAT_STR-TPLNR sy-vline 
WA_IST_NLM_WFM_POWL_ORDER_CAT_STR-PLTXT sy-vline 
WA_IST_NLM_WFM_POWL_ORDER_CAT_STR-FLTYP sy-vline 
WA_IST_NLM_WFM_POWL_ORDER_CAT_STR-POST_CODE1 sy-vline 
WA_IST_NLM_WFM_POWL_ORDER_CAT_STR-CITY1 sy-vline 
WA_IST_NLM_WFM_POWL_ORDER_CAT_STR-STREET sy-vline 
WA_IST_NLM_WFM_POWL_ORDER_CAT_STR-ADDR_LINE sy-vline 
WA_IST_NLM_WFM_POWL_ORDER_CAT_STR-EQUNR sy-vline 
WA_IST_NLM_WFM_POWL_ORDER_CAT_STR-EQTYP sy-vline 
WA_IST_NLM_WFM_POWL_ORDER_CAT_STR-EQKTX sy-vline 
WA_IST_NLM_WFM_POWL_ORDER_CAT_STR-SERIALNR sy-vline 
WA_IST_NLM_WFM_POWL_ORDER_CAT_STR-HERST sy-vline 
WA_IST_NLM_WFM_POWL_ORDER_CAT_STR-SERGE sy-vline 
WA_IST_NLM_WFM_POWL_ORDER_CAT_STR-HEQUI sy-vline 
WA_IST_NLM_WFM_POWL_ORDER_CAT_STR-SERMAT sy-vline 
WA_IST_NLM_WFM_POWL_ORDER_CAT_STR-MAKTX sy-vline 
WA_IST_NLM_WFM_POWL_ORDER_CAT_STR-OBJNR sy-vline 
WA_IST_NLM_WFM_POWL_ORDER_CAT_STR-QM_OBJNR sy-vline 
WA_IST_NLM_WFM_POWL_ORDER_CAT_STR-PERNR sy-vline 
WA_IST_NLM_WFM_POWL_ORDER_CAT_STR-GETRI sy-vline 
WA_IST_NLM_WFM_POWL_ORDER_CAT_STR-GEWRK sy-vline 
WA_IST_NLM_WFM_POWL_ORDER_CAT_STR-AWERK sy-vline 
WA_IST_NLM_WFM_POWL_ORDER_CAT_STR-NAMEST sy-vline      INTO ld_text SEPARATED BY SPACE.

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