ABAP Select data from SAP table APIJITCOMPMAT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM APIJITCOMPMAT
*  INTO TABLE @DATA(IT_APIJITCOMPMAT2).
*--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_APIJITCOMPMAT INDEX 1 INTO DATA(WA_APIJITCOMPMAT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<APIJITCOMPMAT>-MANDT = 1.
<APIJITCOMPMAT>-JITCALLNUMBER = 1.
<APIJITCOMPMAT>-COMPGRPNUMBER = 1.
<APIJITCOMPMAT>-JITCALLITEMNUMBER = 1.
<APIJITCOMPMAT>-MATERIAL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_APIJITCOMPMAT-PRODUCTNAME, sy-vline,
  WA_APIJITCOMPMAT-REQUESTEDQUANTITY, sy-vline,
  WA_APIJITCOMPMAT-QUANTITYUNIT, sy-vline,
  WA_APIJITCOMPMAT-ACTUALDELIVEREDQUANTITY, sy-vline,
  WA_APIJITCOMPMAT-JITOUTBTRANSFERREDQUANTITY, sy-vline,
  WA_APIJITCOMPMAT-JITOUTBMINIMUMQUANTITY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_APIJITCOMPMAT 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_APIJITCOMPMAT 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_APIJITCOMPMAT INTO WA_APIJITCOMPMAT.


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

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

*Conversion exit CUNIT, internal->external for field QUANTITYUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_APIJITCOMPMAT-QUANTITYUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_APIJITCOMPMAT-QUANTITYUNIT.
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_APIJITCOMPMAT_STR, 
MANDT TYPE STRING,
JITCALLNUMBER TYPE STRING,
COMPGRPNUMBER TYPE STRING,
JITCALLITEMNUMBER TYPE STRING,
MATERIAL TYPE STRING,
PRODUCTNAME TYPE STRING,
REQUESTEDQUANTITY TYPE STRING,
QUANTITYUNIT TYPE STRING,
ACTUALDELIVEREDQUANTITY TYPE STRING,
JITOUTBTRANSFERREDQUANTITY TYPE STRING,
JITOUTBMINIMUMQUANTITY TYPE STRING,
JITOUTBPICKEDQUANTITY TYPE STRING,
JITOUTBOPENQUANTITY TYPE STRING,
SHORTFALLQUANTITY TYPE STRING,
JITACTION TYPE STRING,
JITINTPROCESSINGSTATUS TYPE STRING,
JITOUTBSTOCKTRANSFERSTS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_APIJITCOMPMAT_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_APIJITCOMPMAT_STR-MANDT sy-vline 
WA_APIJITCOMPMAT_STR-JITCALLNUMBER sy-vline 
WA_APIJITCOMPMAT_STR-COMPGRPNUMBER sy-vline 
WA_APIJITCOMPMAT_STR-JITCALLITEMNUMBER sy-vline 
WA_APIJITCOMPMAT_STR-MATERIAL sy-vline 
WA_APIJITCOMPMAT_STR-PRODUCTNAME sy-vline 
WA_APIJITCOMPMAT_STR-REQUESTEDQUANTITY sy-vline 
WA_APIJITCOMPMAT_STR-QUANTITYUNIT sy-vline 
WA_APIJITCOMPMAT_STR-ACTUALDELIVEREDQUANTITY sy-vline 
WA_APIJITCOMPMAT_STR-JITOUTBTRANSFERREDQUANTITY sy-vline 
WA_APIJITCOMPMAT_STR-JITOUTBMINIMUMQUANTITY sy-vline 
WA_APIJITCOMPMAT_STR-JITOUTBPICKEDQUANTITY sy-vline 
WA_APIJITCOMPMAT_STR-JITOUTBOPENQUANTITY sy-vline 
WA_APIJITCOMPMAT_STR-SHORTFALLQUANTITY sy-vline 
WA_APIJITCOMPMAT_STR-JITACTION sy-vline 
WA_APIJITCOMPMAT_STR-JITINTPROCESSINGSTATUS sy-vline 
WA_APIJITCOMPMAT_STR-JITOUTBSTOCKTRANSFERSTS sy-vline      INTO ld_text SEPARATED BY SPACE.

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