ABAP Select data from SAP table JIT_FER_HEAD_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_HEAD_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_HEAD_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_HEAD_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_HEAD_LISTE TYPE STANDARD TABLE OF JIT_FER_HEAD_LISTE,
      WA_JIT_FER_HEAD_LISTE TYPE JIT_FER_HEAD_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_HEAD_LISTE> TYPE JIT_FER_HEAD_LISTE.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM JIT_FER_HEAD_LISTE
*  INTO TABLE @DATA(IT_JIT_FER_HEAD_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_HEAD_LISTE INDEX 1 INTO DATA(WA_JIT_FER_HEAD_LISTE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<JIT_FER_HEAD_LISTE>-SEL = 1.
<JIT_FER_HEAD_LISTE>-EXP = 1.
<JIT_FER_HEAD_LISTE>-AMPEL = 1.
<JIT_FER_HEAD_LISTE>-EMPTY = 1.
<JIT_FER_HEAD_LISTE>-COL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_JIT_FER_HEAD_LISTE-LFDN, sy-vline,
  WA_JIT_FER_HEAD_LISTE-JINUM, sy-vline,
  WA_JIT_FER_HEAD_LISTE-CUSTO, sy-vline,
  WA_JIT_FER_HEAD_LISTE-PRODN, sy-vline,
  WA_JIT_FER_HEAD_LISTE-SEQNR, sy-vline,
  WA_JIT_FER_HEAD_LISTE-VETYP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_JIT_FER_HEAD_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_HEAD_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_HEAD_LISTE INTO WA_JIT_FER_HEAD_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 ALPHA, internal->external for field KUNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_JIT_FER_HEAD_LISTE-KUNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_JIT_FER_HEAD_LISTE-KUNNR.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ALPHA, internal->external for field VBELN_VL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_JIT_FER_HEAD_LISTE-VBELN_VL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_JIT_FER_HEAD_LISTE-VBELN_VL.
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_HEAD_LISTE_STR, 
SEL TYPE STRING,
EXP TYPE STRING,
AMPEL TYPE STRING,
EMPTY TYPE STRING,
COL TYPE STRING,
LFDN TYPE STRING,
JINUM TYPE STRING,
CUSTO TYPE STRING,
PRODN TYPE STRING,
SEQNR TYPE STRING,
VETYP TYPE STRING,
VEHID TYPE STRING,
TEXHD TYPE STRING,
SSPEZ TYPE STRING,
NACHB TYPE STRING,
ABTYP TYPE STRING,
ARCHI TYPE STRING,
DDATA TYPE STRING,
RANGE TYPE STRING,
KUNNR TYPE STRING,
KNREF TYPE STRING,
ABRVW TYPE STRING,
TZONE TYPE STRING,
FPROF TYPE STRING,
VATYP TYPE STRING,
MTCH TYPE STRING,
IMPAC TYPE STRING,
MTMOD TYPE STRING,
CREHU TYPE STRING,
DON_PROFIL TYPE STRING,
PRIID TYPE STRING,
NOPCK TYPE STRING,
KUNWE TYPE STRING,
LPROF TYPE STRING,
RNPID TYPE STRING,
DLSLV TYPE STRING,
PRIVC TYPE STRING,
GIUPD TYPE STRING,
GRPIN TYPE STRING,
EXIDV TYPE STRING,
VBELN_VL TYPE STRING,
ABLAD TYPE STRING,
FLDPO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_JIT_FER_HEAD_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_HEAD_LISTE_STR-SEL sy-vline 
WA_JIT_FER_HEAD_LISTE_STR-EXP sy-vline 
WA_JIT_FER_HEAD_LISTE_STR-AMPEL sy-vline 
WA_JIT_FER_HEAD_LISTE_STR-EMPTY sy-vline 
WA_JIT_FER_HEAD_LISTE_STR-COL sy-vline 
WA_JIT_FER_HEAD_LISTE_STR-LFDN sy-vline 
WA_JIT_FER_HEAD_LISTE_STR-JINUM sy-vline 
WA_JIT_FER_HEAD_LISTE_STR-CUSTO sy-vline 
WA_JIT_FER_HEAD_LISTE_STR-PRODN sy-vline 
WA_JIT_FER_HEAD_LISTE_STR-SEQNR sy-vline 
WA_JIT_FER_HEAD_LISTE_STR-VETYP sy-vline 
WA_JIT_FER_HEAD_LISTE_STR-VEHID sy-vline 
WA_JIT_FER_HEAD_LISTE_STR-TEXHD sy-vline 
WA_JIT_FER_HEAD_LISTE_STR-SSPEZ sy-vline 
WA_JIT_FER_HEAD_LISTE_STR-NACHB sy-vline 
WA_JIT_FER_HEAD_LISTE_STR-ABTYP sy-vline 
WA_JIT_FER_HEAD_LISTE_STR-ARCHI sy-vline 
WA_JIT_FER_HEAD_LISTE_STR-DDATA sy-vline 
WA_JIT_FER_HEAD_LISTE_STR-RANGE sy-vline 
WA_JIT_FER_HEAD_LISTE_STR-KUNNR sy-vline 
WA_JIT_FER_HEAD_LISTE_STR-KNREF sy-vline 
WA_JIT_FER_HEAD_LISTE_STR-ABRVW sy-vline 
WA_JIT_FER_HEAD_LISTE_STR-TZONE sy-vline 
WA_JIT_FER_HEAD_LISTE_STR-FPROF sy-vline 
WA_JIT_FER_HEAD_LISTE_STR-VATYP sy-vline 
WA_JIT_FER_HEAD_LISTE_STR-MTCH sy-vline 
WA_JIT_FER_HEAD_LISTE_STR-IMPAC sy-vline 
WA_JIT_FER_HEAD_LISTE_STR-MTMOD sy-vline 
WA_JIT_FER_HEAD_LISTE_STR-CREHU sy-vline 
WA_JIT_FER_HEAD_LISTE_STR-DON_PROFIL sy-vline 
WA_JIT_FER_HEAD_LISTE_STR-PRIID sy-vline 
WA_JIT_FER_HEAD_LISTE_STR-NOPCK sy-vline 
WA_JIT_FER_HEAD_LISTE_STR-KUNWE sy-vline 
WA_JIT_FER_HEAD_LISTE_STR-LPROF sy-vline 
WA_JIT_FER_HEAD_LISTE_STR-RNPID sy-vline 
WA_JIT_FER_HEAD_LISTE_STR-DLSLV sy-vline 
WA_JIT_FER_HEAD_LISTE_STR-PRIVC sy-vline 
WA_JIT_FER_HEAD_LISTE_STR-GIUPD sy-vline 
WA_JIT_FER_HEAD_LISTE_STR-GRPIN sy-vline 
WA_JIT_FER_HEAD_LISTE_STR-EXIDV sy-vline 
WA_JIT_FER_HEAD_LISTE_STR-VBELN_VL sy-vline 
WA_JIT_FER_HEAD_LISTE_STR-ABLAD sy-vline 
WA_JIT_FER_HEAD_LISTE_STR-FLDPO sy-vline      INTO ld_text SEPARATED BY SPACE.

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