ABAP Select data from SAP table J_7L_FRAKTION_LIST_LINE into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP J_7L_FRAKTION_LIST_LINE 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_7L_FRAKTION_LIST_LINE. 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_7L_FRAKTION_LIST_LINE 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_7L_FRAKTION_LIST_LINE TYPE STANDARD TABLE OF J_7L_FRAKTION_LIST_LINE,
      WA_J_7L_FRAKTION_LIST_LINE TYPE J_7L_FRAKTION_LIST_LINE,
      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_7L_FRAKTION_LIST_LINE> TYPE J_7L_FRAKTION_LIST_LINE.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_J_7L_FRAKTION_LIST_LINE.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM J_7L_FRAKTION_LIST_LINE
  INTO TABLE IT_J_7L_FRAKTION_LIST_LINE.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM J_7L_FRAKTION_LIST_LINE
*  INTO TABLE @DATA(IT_J_7L_FRAKTION_LIST_LINE2).
*--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_7L_FRAKTION_LIST_LINE INDEX 1 INTO DATA(WA_J_7L_FRAKTION_LIST_LINE2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_J_7L_FRAKTION_LIST_LINE ASSIGNING <J_7L_FRAKTION_LIST_LINE>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<J_7L_FRAKTION_LIST_LINE>-STOFF = 1.
<J_7L_FRAKTION_LIST_LINE>-STOKTX = 1.
<J_7L_FRAKTION_LIST_LINE>-STGEW = 1.
<J_7L_FRAKTION_LIST_LINE>-GEWEI = 1.
<J_7L_FRAKTION_LIST_LINE>-ENTNA = 1.

ENDLOOP.

LOOP AT IT_J_7L_FRAKTION_LIST_LINE INTO WA_J_7L_FRAKTION_LIST_LINE.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_J_7L_FRAKTION_LIST_LINE-LAND1, sy-vline,
  WA_J_7L_FRAKTION_LIST_LINE-STOFE, sy-vline,
  WA_J_7L_FRAKTION_LIST_LINE-STOKTXE, sy-vline,
  WA_J_7L_FRAKTION_LIST_LINE-VRPKT, sy-vline,
  WA_J_7L_FRAKTION_LIST_LINE-VRPKTX, sy-vline,
  WA_J_7L_FRAKTION_LIST_LINE-VPEBENE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_J_7L_FRAKTION_LIST_LINE 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_7L_FRAKTION_LIST_LINE 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_7L_FRAKTION_LIST_LINE INTO WA_J_7L_FRAKTION_LIST_LINE.


*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_7L_FRAKTION_LIST_LINE-GEWEI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_7L_FRAKTION_LIST_LINE-GEWEI.
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_7L_FRAKTION_LIST_LINE_STR, 
STOFF TYPE STRING,
STOKTX TYPE STRING,
STGEW TYPE STRING,
GEWEI TYPE STRING,
ENTNA TYPE STRING,
LAND1 TYPE STRING,
STOFE TYPE STRING,
STOKTXE TYPE STRING,
VRPKT TYPE STRING,
VRPKTX TYPE STRING,
VPEBENE TYPE STRING,
VPEBENETX TYPE STRING,END OF T_EKKO_STR.
DATA: WA_J_7L_FRAKTION_LIST_LINE_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_7L_FRAKTION_LIST_LINE_STR-STOFF sy-vline 
WA_J_7L_FRAKTION_LIST_LINE_STR-STOKTX sy-vline 
WA_J_7L_FRAKTION_LIST_LINE_STR-STGEW sy-vline 
WA_J_7L_FRAKTION_LIST_LINE_STR-GEWEI sy-vline 
WA_J_7L_FRAKTION_LIST_LINE_STR-ENTNA sy-vline 
WA_J_7L_FRAKTION_LIST_LINE_STR-LAND1 sy-vline 
WA_J_7L_FRAKTION_LIST_LINE_STR-STOFE sy-vline 
WA_J_7L_FRAKTION_LIST_LINE_STR-STOKTXE sy-vline 
WA_J_7L_FRAKTION_LIST_LINE_STR-VRPKT sy-vline 
WA_J_7L_FRAKTION_LIST_LINE_STR-VRPKTX sy-vline 
WA_J_7L_FRAKTION_LIST_LINE_STR-VPEBENE sy-vline 
WA_J_7L_FRAKTION_LIST_LINE_STR-VPEBENETX sy-vline      INTO ld_text SEPARATED BY SPACE.

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