ABAP Select data from SAP table JIT_FER_COMP_LISTE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM JIT_FER_COMP_LISTE
*  INTO TABLE @DATA(IT_JIT_FER_COMP_LISTE2).
*--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_JIT_FER_COMP_LISTE INDEX 1 INTO DATA(WA_JIT_FER_COMP_LISTE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<JIT_FER_COMP_LISTE>-LFDN = 1.
<JIT_FER_COMP_LISTE>-POSID = 1.
<JIT_FER_COMP_LISTE>-LIUMF = 1.
<JIT_FER_COMP_LISTE>-MATID = 1.
<JIT_FER_COMP_LISTE>-MATNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_JIT_FER_COMP_LISTE-MICON, sy-vline,
  WA_JIT_FER_COMP_LISTE-KDMAT, sy-vline,
  WA_JIT_FER_COMP_LISTE-MAKTX, sy-vline,
  WA_JIT_FER_COMP_LISTE-QUANT, sy-vline,
  WA_JIT_FER_COMP_LISTE-MEINS, sy-vline,
  WA_JIT_FER_COMP_LISTE-WERKS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_JIT_FER_COMP_LISTE 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_JIT_FER_COMP_LISTE 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_JIT_FER_COMP_LISTE INTO WA_JIT_FER_COMP_LISTE.


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

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

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

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

*Conversion exit NUMCV, internal->external for field STLNR
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_JIT_FER_COMP_LISTE-STLNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_JIT_FER_COMP_LISTE-STLNR.
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_JIT_FER_COMP_LISTE_STR, 
LFDN TYPE STRING,
POSID TYPE STRING,
LIUMF TYPE STRING,
MATID TYPE STRING,
MATNR TYPE STRING,
MICON TYPE STRING,
KDMAT TYPE STRING,
MAKTX TYPE STRING,
QUANT TYPE STRING,
MEINS TYPE STRING,
WERKS TYPE STRING,
LGPRO TYPE STRING,
STSOR TYPE STRING,
PRVBE TYPE STRING,
ARBPL TYPE STRING,
VERID TYPE STRING,
CUOBJ TYPE STRING,
PDATUM TYPE STRING,
BAUGR TYPE STRING,
STLTY TYPE STRING,
STLNR TYPE STRING,
DISMM TYPE STRING,
MATKL TYPE STRING,
BOMEX TYPE STRING,END OF T_EKKO_STR.
DATA: WA_JIT_FER_COMP_LISTE_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_JIT_FER_COMP_LISTE_STR-LFDN sy-vline 
WA_JIT_FER_COMP_LISTE_STR-POSID sy-vline 
WA_JIT_FER_COMP_LISTE_STR-LIUMF sy-vline 
WA_JIT_FER_COMP_LISTE_STR-MATID sy-vline 
WA_JIT_FER_COMP_LISTE_STR-MATNR sy-vline 
WA_JIT_FER_COMP_LISTE_STR-MICON sy-vline 
WA_JIT_FER_COMP_LISTE_STR-KDMAT sy-vline 
WA_JIT_FER_COMP_LISTE_STR-MAKTX sy-vline 
WA_JIT_FER_COMP_LISTE_STR-QUANT sy-vline 
WA_JIT_FER_COMP_LISTE_STR-MEINS sy-vline 
WA_JIT_FER_COMP_LISTE_STR-WERKS sy-vline 
WA_JIT_FER_COMP_LISTE_STR-LGPRO sy-vline 
WA_JIT_FER_COMP_LISTE_STR-STSOR sy-vline 
WA_JIT_FER_COMP_LISTE_STR-PRVBE sy-vline 
WA_JIT_FER_COMP_LISTE_STR-ARBPL sy-vline 
WA_JIT_FER_COMP_LISTE_STR-VERID sy-vline 
WA_JIT_FER_COMP_LISTE_STR-CUOBJ sy-vline 
WA_JIT_FER_COMP_LISTE_STR-PDATUM sy-vline 
WA_JIT_FER_COMP_LISTE_STR-BAUGR sy-vline 
WA_JIT_FER_COMP_LISTE_STR-STLTY sy-vline 
WA_JIT_FER_COMP_LISTE_STR-STLNR sy-vline 
WA_JIT_FER_COMP_LISTE_STR-DISMM sy-vline 
WA_JIT_FER_COMP_LISTE_STR-MATKL sy-vline 
WA_JIT_FER_COMP_LISTE_STR-BOMEX sy-vline      INTO ld_text SEPARATED BY SPACE.

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