ABAP Select data from SAP table PKJIT_WITHOUT_WM_STRUC into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PKJIT_WITHOUT_WM_STRUC
*  INTO TABLE @DATA(IT_PKJIT_WITHOUT_WM_STRUC2).
*--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_PKJIT_WITHOUT_WM_STRUC INDEX 1 INTO DATA(WA_PKJIT_WITHOUT_WM_STRUC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PKJIT_WITHOUT_WM_STRUC>-CPUDT = 1.
<PKJIT_WITHOUT_WM_STRUC>-CPUTM = 1.
<PKJIT_WITHOUT_WM_STRUC>-OUTPO = 1.
<PKJIT_WITHOUT_WM_STRUC>-JCPOS = 1.
<PKJIT_WITHOUT_WM_STRUC>-QUANT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PKJIT_WITHOUT_WM_STRUC-MBLNR, sy-vline,
  WA_PKJIT_WITHOUT_WM_STRUC-MBPOS, sy-vline,
  WA_PKJIT_WITHOUT_WM_STRUC-GRQUA, sy-vline,
  WA_PKJIT_WITHOUT_WM_STRUC-CHARG, sy-vline,
  WA_PKJIT_WITHOUT_WM_STRUC-BESTQ, sy-vline,
  WA_PKJIT_WITHOUT_WM_STRUC-SOBKZ, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PKJIT_WITHOUT_WM_STRUC 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_PKJIT_WITHOUT_WM_STRUC 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_PKJIT_WITHOUT_WM_STRUC INTO WA_PKJIT_WITHOUT_WM_STRUC.


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

*Conversion exit GJAHR, internal->external for field MJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_PKJIT_WITHOUT_WM_STRUC-MJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PKJIT_WITHOUT_WM_STRUC-MJAHR.
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_PKJIT_WITHOUT_WM_STRUC_STR, 
CPUDT TYPE STRING,
CPUTM TYPE STRING,
OUTPO TYPE STRING,
JCPOS TYPE STRING,
QUANT TYPE STRING,
MBLNR TYPE STRING,
MBPOS TYPE STRING,
GRQUA TYPE STRING,
CHARG TYPE STRING,
BESTQ TYPE STRING,
SOBKZ TYPE STRING,
MJAHR TYPE STRING,
GRDON TYPE STRING,
VZBEW TYPE STRING,
XSTOR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PKJIT_WITHOUT_WM_STRUC_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_PKJIT_WITHOUT_WM_STRUC_STR-CPUDT sy-vline 
WA_PKJIT_WITHOUT_WM_STRUC_STR-CPUTM sy-vline 
WA_PKJIT_WITHOUT_WM_STRUC_STR-OUTPO sy-vline 
WA_PKJIT_WITHOUT_WM_STRUC_STR-JCPOS sy-vline 
WA_PKJIT_WITHOUT_WM_STRUC_STR-QUANT sy-vline 
WA_PKJIT_WITHOUT_WM_STRUC_STR-MBLNR sy-vline 
WA_PKJIT_WITHOUT_WM_STRUC_STR-MBPOS sy-vline 
WA_PKJIT_WITHOUT_WM_STRUC_STR-GRQUA sy-vline 
WA_PKJIT_WITHOUT_WM_STRUC_STR-CHARG sy-vline 
WA_PKJIT_WITHOUT_WM_STRUC_STR-BESTQ sy-vline 
WA_PKJIT_WITHOUT_WM_STRUC_STR-SOBKZ sy-vline 
WA_PKJIT_WITHOUT_WM_STRUC_STR-MJAHR sy-vline 
WA_PKJIT_WITHOUT_WM_STRUC_STR-GRDON sy-vline 
WA_PKJIT_WITHOUT_WM_STRUC_STR-VZBEW sy-vline 
WA_PKJIT_WITHOUT_WM_STRUC_STR-XSTOR sy-vline      INTO ld_text SEPARATED BY SPACE.

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