ABAP Select data from SAP table J_7LKIED into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP J_7LKIED 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 J_7LKIED. 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 J_7LKIED 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_J_7LKIED TYPE STANDARD TABLE OF J_7LKIED,
      WA_J_7LKIED TYPE J_7LKIED,
      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: <J_7LKIED> TYPE J_7LKIED.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_J_7LKIED.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM J_7LKIED
  INTO TABLE IT_J_7LKIED.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM J_7LKIED
*  INTO TABLE @DATA(IT_J_7LKIED2).
*--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_J_7LKIED INDEX 1 INTO DATA(WA_J_7LKIED2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_J_7LKIED ASSIGNING <J_7LKIED>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<J_7LKIED>-PLVRS = 1.
<J_7LKIED>-PLTYP = 1.
<J_7LKIED>-VFLKL = 1.
<J_7LKIED>-VFLST = 1.
<J_7LKIED>-STGEW = 1.

ENDLOOP.

LOOP AT IT_J_7LKIED INTO WA_J_7LKIED.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_J_7LKIED-GEWEI, sy-vline,
  WA_J_7LKIED-PREISE, sy-vline,
  WA_J_7LKIED-PREISR, sy-vline,
  WA_J_7LKIED-PREISA, sy-vline,
  WA_J_7LKIED-PREISB, sy-vline,
  WA_J_7LKIED-VFLKLKTX, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_J_7LKIED 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_J_7LKIED 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_J_7LKIED INTO WA_J_7LKIED.


*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 CUNIT, internal->external for field GEWEI
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_J_7LKIED-GEWEI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LKIED-GEWEI.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field KMEIN
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_J_7LKIED-KMEIN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7LKIED-KMEIN.
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_J_7LKIED_STR, 
PLVRS TYPE STRING,
PLTYP TYPE STRING,
VFLKL TYPE STRING,
VFLST TYPE STRING,
STGEW TYPE STRING,
GEWEI TYPE STRING,
PREISE TYPE STRING,
PREISR TYPE STRING,
PREISA TYPE STRING,
PREISB TYPE STRING,
VFLKLKTX TYPE STRING,
STOKTX TYPE STRING,
STOFE TYPE STRING,
ABSCHLAG_G TYPE STRING,
KPEIN TYPE STRING,
KPROZ TYPE STRING,
BETRAG TYPE STRING,
BETRAG_ENT TYPE STRING,
KMEIN TYPE STRING,
FAKTOR_POS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_J_7LKIED_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_J_7LKIED_STR-PLVRS sy-vline 
WA_J_7LKIED_STR-PLTYP sy-vline 
WA_J_7LKIED_STR-VFLKL sy-vline 
WA_J_7LKIED_STR-VFLST sy-vline 
WA_J_7LKIED_STR-STGEW sy-vline 
WA_J_7LKIED_STR-GEWEI sy-vline 
WA_J_7LKIED_STR-PREISE sy-vline 
WA_J_7LKIED_STR-PREISR sy-vline 
WA_J_7LKIED_STR-PREISA sy-vline 
WA_J_7LKIED_STR-PREISB sy-vline 
WA_J_7LKIED_STR-VFLKLKTX sy-vline 
WA_J_7LKIED_STR-STOKTX sy-vline 
WA_J_7LKIED_STR-STOFE sy-vline 
WA_J_7LKIED_STR-ABSCHLAG_G sy-vline 
WA_J_7LKIED_STR-KPEIN sy-vline 
WA_J_7LKIED_STR-KPROZ sy-vline 
WA_J_7LKIED_STR-BETRAG sy-vline 
WA_J_7LKIED_STR-BETRAG_ENT sy-vline 
WA_J_7LKIED_STR-KMEIN sy-vline 
WA_J_7LKIED_STR-FAKTOR_POS sy-vline      INTO ld_text SEPARATED BY SPACE.

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